Material design fixed tabs without toolbar - tabs

I have a slight problem figuring out a "bug" in my code. Im not sure if its a bug or not. However, as you can see in the picture 1, the fixed tabs' position is behind the curtain drawer. I cant find/understand why this is. Ive followed several tutorials and they dont seem to have the same problem.
Ive tried to google it up, but i cant find a similar problem. Anyone experienced something similar before?
In the android studio, the design layout seems to be on point, however, not when compiled.
Im using the neokree lib so i can use the icons and ripple effect when selecting tabs. I've tried to use the google's tab layout link here, but as soon as i tried to remove the actionbar and apply the icons, the same problem occurred.
Thanks!
activity_main
<?xml version="1.0" encoding="utf-8" ?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<it.neokree.materialtabs.MaterialTabHost
android:id="#+id/materialTabHost"
android:layout_width="match_parent"
android:layout_height="48dp"
app:iconColor="#color/iconColor"
app:primaryColor="#color/primaryColor"
app:accentColor="#color/accentColor"
app:hasIcons="true"/>
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="0px"
android:layout_weight="1"/>
</LinearLayout>
styles.xml
<resources>
<style name="AppTheme" parent="AppTheme.Base"></style>
<style name="AppTheme.Base" parent="Theme.AppCompat.NoActionBar">
<item name="colorPrimary">#color/primaryColor</item>
<item name="colorPrimaryDark">#color/primaryColorDark</item>
<item name="colorAccent">#color/accentColor</item>
<item name="colorControlHighlight">#color/colorHighlight</item>
</style>
</resources>
styles.xml v21
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- Base application theme. -->
<!--Using same style as in default style.xml file-->
<style name="AppTheme" parent="AppTheme.Base">
<item name="android:colorPrimary">#color/primaryColor</item>
<item name="android:colorPrimaryDark">#color/primaryColorDark</item>
<item name="android:colorAccent">#color/accentColor</item>
<item name="android:windowTranslucentStatus">true</item>
<item name="android:colorControlHighlight">#color/colorHighlight</item>
</style>
</resources>
MainActivity
import android.graphics.drawable.Drawable;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.style.ImageSpan;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import it.neokree.materialtabs.MaterialTab;
import it.neokree.materialtabs.MaterialTabHost;
import it.neokree.materialtabs.MaterialTabListener;
public class MainActivity extends ActionBarActivity implements MaterialTabListener
{
private Toolbar toolbar;
private ViewPager mPager;
private SlidingTabLayout mTabs;
private MaterialTabHost tabHost;
private ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tabHost = (MaterialTabHost) findViewById(R.id.materialTabHost);
viewPager = (ViewPager) findViewById(R.id.viewPager);
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(adapter);
viewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
tabHost.setSelectedNavigationItem(position);
}
});
for (int i = 0; i < adapter.getCount(); i++) {
tabHost.addTab(
tabHost.newTab()
.setIcon(adapter.getIcon(i))
.setTabListener(this));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings)
{
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onTabSelected(MaterialTab materialTab) {
viewPager.setCurrentItem(materialTab.getPosition());
}
#Override
public void onTabReselected(MaterialTab materialTab) {
}
#Override
public void onTabUnselected(MaterialTab materialTab) {
}
class ViewPagerAdapter extends FragmentStatePagerAdapter
{
int icons[] = {R.drawable.ic_home,
R.drawable.ic_graph,
R.drawable.ic_bell_mid,
R.drawable.ic_settings};
//String[] tabText = getResources().getStringArray(R.array.tabs);
public ViewPagerAdapter(FragmentManager fm)
{
super(fm);
//tabText = getResources().getStringArray(R.array.tabs);
}
#Override
public Fragment getItem(int position)
{
MyFragment myFragment = MyFragment.getInstance(position);
return myFragment;
}
//Attaching an image to a (spannable) string so we can show the image instead of text.
#Override
public CharSequence getPageTitle(int position){
/*Drawable drawable = getResources().getDrawable(icons[position]);
//icon bounds/size
drawable.setBounds(0,0,96,96);
ImageSpan imageSpan = new ImageSpan(drawable);
SpannableString spannableString = new SpannableString(" ");
spannableString.setSpan(imageSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
return spannableString;*/
return getResources().getStringArray(R.array.tabs)[position];
}
#Override
public int getCount()
{
return 4;
}
private Drawable getIcon(int position)
{
return getResources().getDrawable(icons[position]);
}
}
}

After accidentally getting over a youtube tutorial about making simple material design tabs, I made a new project and started to combine the one I found in youtube with my old one. Eventually, I found out that the following code line in the styles file was the cause of the problem.
<item name="android:windowTranslucentStatus">true</item>
It seems like it was something I added for testing and forgot to remove later on.

Try adding a Toolbar with a no actionbar theme..
In order to do this you have to make a new xml file called tool_bar.xml and paste the following code into it:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:background="#color/ColorPrimary"
android:elevation="2dp"
android:theme="#style/Theme.AppCompat.NoActionBar"
xmlns:android="http://schemas.android.com/apk/res/android" />
You have then add this to your activity_main.xml file:
<include
android:id="#+id/tool_bar"
layout="#layout/tool_bar"
android:layout_height="wrap_content"
android:layout_width="match_parent"
/>

Related

customizing Tab text color, stacked color, and swipe functionality in Xamarin Android?

I have three tabs in xamarin android, I have used tab Host to create those tabs. Now, I want to change the text color in those tabs, and I want to use the swipe effect just like the Tabbed Page in Xamarin Forms. How can I achieve this? Please do tell me the library also ,if required?
I want to change the text color in those tabs, and I want to use the swipe effect just like the Tabbed Page in Xamarin Forms
You could use TabLayout, Usage like this :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<android.support.design.widget.TabLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="#+id/tablayout"
app:tabTextColor="#color/colorPrimary"
app:tabSelectedTextColor="#color/colorAccent"
app:tabIndicatorColor="#android:color/holo_orange_light">
<android.support.design.widget.TabItem
android:text="tab 1"/>
<android.support.design.widget.TabItem
android:text="tab 2"/>
<android.support.design.widget.TabItem
android:text="tab 3"/>
</android.support.design.widget.TabLayout>
</LinearLayout>
Attribute to change the text color :
app:tabTextColor --> The default text color to be applied to tabs.
app:tabSelectedTextColor --> The text color to be applied to the currently selected tab.
app:tabIndicatorColor --> Color of the indicator used to show the currently selected tab.
Effect like this.
use the swipe effect just like the Tabbed Page in Xamarin Forms
In Xamarin.Forms, tabs is associated with Page, actually when it render in native Android, it was associated with ViewPager. So if you want implement the swipe effect feature, you have to write the code by yourself. For more details, you could read the document.
EDIT :
To use TabLayout, you have to add Xamarin.Android.Support.v4 and Xamarin.Android.Support.Design nuget package.
EDIT 2 ;
Here is a simple demo about implement the swipe effect :
public class MainActivity : AppCompatActivity
{
private List<Android.Support.V4.App.Fragment> mFragments = new List<Android.Support.V4.App.Fragment>();
private List<string> mTabTitles = new List<string>();
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.Main);
TabLayout tabLayout = FindViewById<TabLayout>(Resource.Id.tablayout);
ViewPager viewPager = FindViewById<ViewPager>(Resource.Id.view_pager);
initTab();
mFragments.Add(new Fragment1());
mFragments.Add(new Fragment1());
mFragments.Add(new Fragment1());
mFragments.Add(new Fragment1());
viewPager.Adapter = new ViewPagerAdapter(SupportFragmentManager, mFragments,mTabTitles);
tabLayout.SetupWithViewPager(viewPager);
}
private void initTab()
{
for (int i = 1; i < 5; i++)
{
mTabTitles.Add("Tab" + i);
}
}
}
public class ViewPagerAdapter : FragmentPagerAdapter
{
private List<string> mTabTitles;
private static int FRAGMENT_COUNT = 4;
public ViewPagerAdapter(Android.Support.V4.App.FragmentManager fragmentManager, List<Android.Support.V4.App.Fragment> fragments, List<string> tabTitles):base(fragmentManager)
{
mTabTitles = tabTitles;
}
public override Android.Support.V4.App.Fragment GetItem(int position)
{
Fragment1 testFragment = new Fragment1();
return testFragment;
}
public override int Count => FRAGMENT_COUNT;
public override ICharSequence GetPageTitleFormatted(int position)
{
return new Java.Lang.String(mTabTitles[position]);
}
}
axml file :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="#+id/tablayout"
>
</android.support.design.widget.TabLayout>
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</android.support.v4.view.ViewPager>
</LinearLayout>
Effect.
EDIT 3 :
In my demo, Fragment should use Android.Support.V4.App.Fragment, code like this :
public class Fragment1 : Android.Support.V4.App.Fragment
{
public override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Create your fragment here
}
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
// Use this to return your custom view for this Fragment
return inflater.Inflate(Resource.Layout.YourFragment, container, false);
return base.OnCreateView(inflater, container, savedInstanceState);
}
}

call permission which may be rejected for setMyLocationEnable android

Alas! after a lots of efforts and search I couldn't find my problem. I want to find current location in google map but I am still getting an error(required permissions).
call requires permission which may be rejected by user: code should
explicitly check to see if permission is available (with check
permission) or explicitly handle a potential 'security Exception'
at gMap.setMyLocationEnable(true); Please anybody guide me how can I fix it? My code is given below.
AddMasjid.java
package com.example.saroosh.masjidnow.Tabs;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.saroosh.masjidnow.R;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class AddMasjid extends Fragment implements OnMapReadyCallback{
MapView gMapView;
GoogleMap gMap = null;
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View v =inflater.inflate(R.layout.add_masjid,container,false);
gMapView = (MapView) v.findViewById(R.id.map);
gMapView.getMapAsync(this);
gMapView.onCreate(savedInstanceState);
gMapView.onResume(); // needed to get the map to display immediately
try {
MapsInitializer.initialize(getActivity().getApplicationContext());
} catch (Exception e) {
e.printStackTrace();
}
return v;
}
#Override
public void onMapReady(GoogleMap map) {
gMap = map;
gMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
gMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new
LatLng(0, 0), 0));
if (gMap != null) {
gMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
gMap.setMyLocationEnabled();
}
}
#Override
public void onResume() {
super.onResume();
gMapView.onResume();
}
#Override
public void onPause() {
super.onPause();
gMapView.onPause();
}
#Override
public void onDestroy() {
super.onDestroy();
gMapView.onDestroy();
}
#Override
public void onLowMemory() {
super.onLowMemory();
gMapView.onLowMemory();
}
}
add_masjid.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="#000000">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/editText1"
android:layout_alignBottom="#+id/editText1"
android:layout_alignParentStart="true"
android:text="#string/xyz"
android:textColor="#FFFFFF"
android:textSize="20sp"
/>
<Button
android:id="#+id/generalId"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:background="#drawable/rect1"
android:onClick="geoLocate"
android:text="#string/abc"
android:textColor="#FFFFFF"
android:textSize="20sp" />
<EditText
android:id="#+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toEndOf="#+id/textView1"
android:layout_toStartOf="#+id/generalId"
android:ems="10"
android:inputType="text"
android:background="#FFFFFF"
android:labelFor="#+id/editText1"
android:layout_above="#+id/map"
android:layout_alignParentTop="true" />
<com.google.android.gms.maps.MapView
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/generalId">
</com.google.android.gms.maps.MapView>
</RelativeLayout>
I have just solved my problem by adding some permissions in it.
#Override
public void onMapReady(GoogleMap map) {
gMap = map;
gMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
gMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new
LatLng(0, 0), 0));
//add this code...
if (gMap != null) {
gMap.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
if (ActivityCompat.checkSelfPermission(getActivity().getApplicationContext()
, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity().getApplicationContext()
, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
gMap.setMyLocationEnabled(true);
gMap.getUiSettings().setMyLocationButtonEnabled(true);
}
}

I need to open a local html for each item in listview, how do? Android

I have a listview with onclick, but I need each item clicked open a html in assets folder, I have some html .. then need to open each item one.
You can use below code to open local html file from your app assets folder
Intent intent=new Intent(this, WebviewActivity.class);
intent.putExtra("url","file:///android_asset/local.html");
startActivity(intent);
WebviewActivity.java
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebView;
public class WebviewActivity extends Activity {
private WebView mWebView;
private String url;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
mWebView = (WebView) findViewById(R.id.webview);
Intent intent=getIntent();
url=intent.getStringExtra("url");
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
}
}
activity_webview.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/webviewRootContainer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<WebView
android:id="#+id/webview"
android:focusable="true"
android:focusableInTouchMode="true"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>

Google maps app inflation exception

I keep getting errors while accessing the maps part of my app
I included the google play services dependency in my app is there any other library i need to include in it? How do I add the library? All tutorials on the internet use older verions of android studio while I use the latest one.
enter code here
FATAL EXCEPTION: main
"java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.zeda.TaxiTown/com.zeda.TaxiTown.map}:
android.view.InflateException: Binary XML file line #18: Error inflating class fragment"
in my android maps application what does this mean?
XML
<?xml version="1.0" encoding="utf-8"?>
<!-- This can go anywhere in your layout (see other demos for some examples). -->
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.SupportMapFragment"/>
JAVA file has this in it
package com.zeda.TaxiTown;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class map extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.map, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
I switched to using MapView instead and it worked!

Dynamically updating a ListView from JSON object using a custom ListViewAdapter

As usual the question comes from a first time user of Android. Its three weeks later and im tearing my hair out will do my best to explain the problem.
Firstly I am using Exlipse 3.7.1 and SDK r15 as of today because I thought Ill try upgrade maybe thats whats causing the issues but seems to be the same while using r13.
Here is a working copy of my code:
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:gravity="center_horizontal"
android:id="#+id/llMain"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:background="#drawable/header"
android:id="#+id/linearLayout1"
android:layout_height="50dp"
android:layout_width="fill_parent">
<ImageButton
android:background="#null"
android:id="#+id/ibHome"
android:layout_gravity="center_vertical"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight=".25"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:src="#drawable/trophy_cup" />
<ImageView
android:background="#000000"
android:id="#+id/imageView1"
android:layout_height="match_parent"
android:layout_width="1dp" />
<TextView
android:gravity="center_horizontal"
android:id="#+id/lblHome"
android:layout_height="50dp"
android:layout_width="0dp"
android:layout_weight="1"
android:paddingTop="14dp"
android:text="#string/helloHome"
android:textColor="#color/txtYellow"
android:textSize="18dp"
android:textStyle="bold"
android:typeface="serif" />
<ImageView
android:id="#+id/imageView2"
android:layout_height="match_parent" android:background="#000000"
android:layout_width="1dp" />
<ImageButton
android:background="#null"
android:focusable="true"
android:id="#+id/ibQuit"
android:layout_gravity="center_vertical"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight=".25"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:src="#drawable/yellow_flag" />
</LinearLayout>
<!-- Body code goes here -->
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="300dp"
android:layout_weight="1"
android:gravity="center_horizontal" android:paddingTop="10dp">
<TextView
android:id="#+id/lblHeading"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:layout_weight="0.17"
android:gravity="center_horizontal"
android:isScrollContainer="true"
android:text="Top"
android:textColor="#color/txtYellow"
android:textSize="22dp"
android:textStyle="bold" android:paddingTop="7dp" android:typeface="serif"/>
<Spinner
android:entries="#array/strArrTop"
android:id="#+id/spinTop"
android:layout_width="90dp"
android:layout_height="wrap_content"
android:layout_weight="0.44"
android:focusableInTouchMode="true"
android:longClickable="true"/>
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:gravity="center_horizontal"
android:padding="25dp"
android:orientation="vertical" >
<ListView
android:id="#+id/list1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:isScrollContainer="true" />
</LinearLayout>
<!-- End Body code goes here -->
<LinearLayout
android:id="#+id/linearLayout4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal" >
<TextView
android:id="#+id/lblWidth"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
<ImageView
android:layout_height="120dp"
android:layout_width="201dp"
android:scaleType="fitXY"
android:src="#drawable/ddo_logo" />
<TextView
android:id="#+id/lblHeight"
android:layout_height="wrap_content"
android:layout_width="wrap_content" />
</LinearLayout>
</LinearLayout>
mylist.xml (the custom list adapter)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_weight="1"
android:layout_height="wrap_content" android:gravity="left|center">
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal">
<TextView
android:id="#+id/txt1"
android:layout_width="182dp"
android:layout_height="wrap_content"
android:layout_weight="0.21"
android:textColor="#color/txtYellow" />
<TextView
android:id="#+id/txt2"
android:layout_width="40dp"
android:layout_height="wrap_content"
android:textColor="#color/txtYellow" />
</LinearLayout>
</LinearLayout>
The manifest file, uses minSDK 8.0
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.hunta.DDOFastestTimes"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"/>
<supports-screens
android:normalScreens="true"
android:largeScreens="true" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:label="#string/app_name"
android:name=".DDOFastestTimesActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
and finally the offending java file:
package com.hunta.DDOFastestTimes;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Context;
import android.net.ParseException;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
public class DDOFastestTimesActivity extends Activity implements OnClickListener {
/** JSON variables */
String jc1, jc2 = null;
/** END JSON variables */
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/** JSON variables */
String result = null;
InputStream is = null;
StringBuilder sb = null;
/** END JSON variables */
ImageButton closeApp = (ImageButton) findViewById(R.id.ibQuit);
closeApp.setOnClickListener(this);
/** http://www.dcpagesapps.com/developer-resources/android/21-android-tutorial-spinners?start=1 */
/** Populating the spinner from that string-array */
Spinner s = (Spinner) findViewById( R.id.spinTop );
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource( this, R.array.strArrTop, android.R.layout.simple_spinner_item );
adapter.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
/** END Populating the spinner from that string-array */
/** Create a reference to our spinner */
s.setAdapter( adapter );
/** END Create a reference to our spinner */
/** END http://www.dcpagesapps.com/developer-resources/android/21-android-tutorial-spinners?start=1 */
s.setOnItemSelectedListener(new MyOnItemSelectedListener());
/** JSON code to initiate the php */
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
//http post
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://url-to-my-php-file/fastag.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}catch(Exception e){
Log.e("log_tag", "Error in http connection"+e.toString());
}
//convert response to string
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
sb = new StringBuilder();
sb.append(reader.readLine() + "\n");
String line="0";
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
//paring data
JSONArray jArray;
try{
jArray = new JSONArray(result);
JSONObject json_data=null;
// Adding the JSON data to the list view
int length = jArray.length();
List<String> listContents1 = new ArrayList<String>(length);
List<String> listContents2 = new ArrayList<String>(length);
// Convert ListString Array to an ArrayList
ArrayList<tblRecord> arrTxt = new ArrayList<tblRecord>();
// Changing the ListViews
for(int i=0;i<jArray.length();i++){
json_data = jArray.getJSONObject(i);
jc1 = json_data.getString("c1");
jc2 = json_data.getString("c2");
listContents1.add(json_data.getString("c1"));
listContents2.add(json_data.getString("c2"));
// Create an Array to pass to our custom view
tblRecord addRecord = new tblRecord(jc1, jc2);
arrTxt.add(addRecord);
}
ListView myListView1 = (ListView) findViewById(R.id.list1);
myListView1.setAdapter(new UserItemAdapter(this, android.R.layout.simple_list_item_1, arrTxt));
// END Adding the JSON data to the list view
}
catch(JSONException e1){
Toast.makeText(getBaseContext(), "No Results Found" ,Toast.LENGTH_LONG).show();
} catch (ParseException e1) {
e1.printStackTrace();
}
/** END JSON code to initiate the php */
}
/** End Called when the activity is first created. */
/** Using a custom List View */
public class UserItemAdapter extends ArrayAdapter<tblRecord> {
private ArrayList<tblRecord> arrList;
public UserItemAdapter(Context context, int textViewResourceId, ArrayList<tblRecord> arrList) {
super(context, textViewResourceId, arrList);
this.arrList = arrList;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.mylist, null);
}
tblRecord user = arrList.get(position);
if (user != null) {
TextView c1 = (TextView) v.findViewById(R.id.txt1);
TextView c2 = (TextView) v.findViewById(R.id.txt2);
if (c1 != null) {
c1.setText(user.c1);
}
if(c2 != null) {
c2.setText(user.c2);
}
}
return v;
}
}
public class tblRecord {
public String c1;
public String c2;
public tblRecord(String c1, String c2) {
this.c1 = c1;
this.c2 = c2;
}
}
/** END Using a custom List View */
/** Listener for the spinner, we will handle changes made to the spinner here */
public class MyOnItemSelectedListener implements OnItemSelectedListener {
public void onItemSelected(AdapterView<?> parent,
View v, int position, long id) {
Toast.makeText(parent.getContext(), "The top " +
parent.getItemAtPosition(position).toString(), Toast.LENGTH_LONG).show();
}
public void onNothingSelected(AdapterView<?> parent) {
// Do nothing.
}
}
/** END Listener for the spinner, we will handle changes made to the spinner here */
#Override
public void onClick(View v) {
int id = v.getId();
// Intent myIntent;
switch (id) {
case R.id.ibQuit:
finish();
break;
}
}
}
Up until this point everything is working, if not 100% at least it works but now I need to try dynamically change the contents of the list view when the user changes the spinner.
The emulator uses -dns-server xxx.xxx.xxx.xxx in its run configuration
I am running 3.7in WVGA
Now after an 8 hour attempt to find a way to do this, this is as far as I have gotten but it just crashes:
package com.hunta.DDOFastestTimes;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.net.ParseException;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
public class DDOFastestTimesActivity extends ListActivity implements OnClickListener {
private UserItemAdapter myAdapter;
private ArrayList<tblRecord> arrTxt = null;
private Runnable viewJSON;
/** JSON variables */
String jc1, jc2, result = null;
InputStream is = null;
StringBuilder sb = null;
/** END JSON variables */
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ImageButton closeApp = (ImageButton) findViewById(R.id.ibQuit);
closeApp.setOnClickListener(this);
/** http://www.dcpagesapps.com/developer-resources/android/21-android-tutorial-spinners?start=1 */
/** Populating the spinner from that string-array */
Spinner s = (Spinner) findViewById( R.id.spinTop );
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource( this, R.array.strArrTop, android.R.layout.simple_spinner_item );
adapter.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
/** END Populating the spinner from that string-array */
/** Create a reference to our spinner */
s.setAdapter( adapter );
/** END Create a reference to our spinner */
/** END http://www.dcpagesapps.com/developer-resources/android/21-android-tutorial-spinners?start=1 */
s.setOnItemSelectedListener(new MyOnItemSelectedListener());
arrTxt = new ArrayList<tblRecord>();
this.myAdapter = new UserItemAdapter(this, R.layout.mylist, arrTxt);
setListAdapter(this.myAdapter);
viewJSON = new Runnable(){
#Override
public void run() {
arrTxt = MyJSONFetch(0);
}
};
Thread thread = new Thread(null, viewJSON, "MagentoBackground");
thread.start();
ListView myListView1 = (ListView) findViewById(R.id.list1);
myListView1.setAdapter(new UserItemAdapter(this, android.R.layout.simple_list_item_1, arrTxt));
}
/** End Called when the activity is first created. */
private Runnable returnRes = new Runnable() {
#Override
public void run() {
if(arrTxt != null && arrTxt.size() > 0){
myAdapter.notifyDataSetChanged();
for(int i=0;i<arrTxt.size();i++)
myAdapter.add(arrTxt.get(i));
}
myAdapter.notifyDataSetChanged();
}
};
/** Using a custom List View */
public class UserItemAdapter extends ArrayAdapter<tblRecord> {
private ArrayList<tblRecord> arrTxt;
public UserItemAdapter(Context context, int textViewResourceId, ArrayList<tblRecord> arrTxt) {
super(context, textViewResourceId, arrTxt);
this.arrTxt = arrTxt;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.mylist, null);
}
tblRecord user = arrTxt.get(position);
if (user != null) {
TextView c1 = (TextView) v.findViewById(R.id.txt1);
TextView c2 = (TextView) v.findViewById(R.id.txt2);
if (c1 != null) {
c1.setText(user.c1);
}
if(c2 != null) {
c2.setText(user.c2);
}
}
return v;
}
}
public class tblRecord {
public String c1;
public String c2;
public tblRecord(String c1, String c2) {
this.c1 = c1;
this.c2 = c2;
}
}
/** END Using a custom List View */
/** Reload JSON Database from onclick listener */
public ArrayList<tblRecord> MyJSONFetch(int position)
{
ArrayList<tblRecord> arrTxt = new ArrayList<tblRecord>();
String tmpUrl = null;
/** JSON code to initiate the php */
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
//http post
try{
HttpClient httpclient = new DefaultHttpClient();
switch (position)
{
case 0:
tmpUrl = "http://smutlow.comp-degree.uhi.ac.uk/UG409713/DDOFastestTimes/fastag.php";
break;
case 1:
tmpUrl = "http://smutlow.comp-degree.uhi.ac.uk/UG409713/DDOFastestTimes/fastas.php";
break;
}
HttpPost httppost = new HttpPost(tmpUrl);
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}catch(Exception e){
Log.e("log_tag", "Error in http connection"+e.toString());
}
//convert response to string
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
sb = new StringBuilder();
sb.append(reader.readLine() + "\n");
String line="0";
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
//paring data
JSONArray jArray;
try{
jArray = new JSONArray(result);
JSONObject json_data=null;
// Adding the JSON data to the list view
int length = jArray.length();
List<String> listContents1 = new ArrayList<String>(length);
List<String> listContents2 = new ArrayList<String>(length);
// Changing the ListViews
for(int i=0;i<jArray.length();i++){
json_data = jArray.getJSONObject(i);
jc1 = json_data.getString("c1");
jc2 = json_data.getString("c2");
listContents1.add(json_data.getString("c1"));
listContents2.add(json_data.getString("c2"));
// Create an Array to pass to our custom view
tblRecord addRecord = new tblRecord(jc1, jc2);
arrTxt.add(addRecord);
}
// END Adding the JSON data to the list view
}
catch(JSONException e1){
Toast.makeText(getBaseContext(), "No Results Found" ,Toast.LENGTH_LONG).show();
} catch (ParseException e1) {
e1.printStackTrace();
}
/** END Reload JSON Database from onclick listener */
runOnUiThread(returnRes);
return arrTxt;
}
/** Listener for the spinner, we will handle changes made to the spinner here */
public class MyOnItemSelectedListener implements OnItemSelectedListener {
public void onItemSelected(AdapterView<?> parent,
View v, int position, long id) {
MyJSONFetch(position);
Toast.makeText(parent.getContext(), "The top " + parent.getItemAtPosition(position).toString(), Toast.LENGTH_LONG).show();
MyJSONFetch(position);
}
public void onNothingSelected(AdapterView<?> parent) {
// Do nothing.
}
}
/** END Listener for the spinner, we will handle changes made to the spinner here */
#Override
public void onClick(View v) {
int id = v.getId();
// Intent myIntent;
switch (id) {
case R.id.ibQuit:
finish();
break;
}
}
}
Basically Ive tried to seperate the JSON code from the onCreate and put it into its own public method so I can call it from the MyOnItemSelectedListener but I am out of ideas and have demonstrated my total lack of understanding of java.
Please if you respond try be a simplistic as possible with your answer.
Thank you in advance.
p.s. apologies if the layout isn't what it should be this is my first post
So I have found a solution to this perhaps someone might offer a better one but here is what I did:
Rather than try to fire the PHP I needed from the spinner I opted to use the spinner to load a new Intent with the relevant URL to the PHP I wanted to use added to a Bundle.
if (position == 0) {
Bundle myBundle = new Bundle();
Intent myIntent;
myBundle.putString("myPHP", "http://url-to-my-php-file/fastag.php");
myIntent = new Intent(getBaseContext(), DDOFastestGuilds.class);
myIntent.putExtras(myBundle);
startActivity(myIntent);
onLowMemory();
finish();
}
I then added two new .java files practically identical to the first one, adding two lines at the start:
Bundle myBundle = getIntent().getExtras();
String tmpPHP = myBundle.getString("myPHP");
I amended the line that calls the HttpPost to point to the variable I just created tmpPHP rather than the literal URL I had used in the original file:
HttpPost httppost = new HttpPost(tmpPHP);
And lastly changing the spinners selection to reflect that last selected by the user, if there were more than two options in the spinner I would have used the bundle to pass the last selected index but in my example I only had two options so I knew the selected index was either 0 or 1 depending on the Intent i wanted to open. (Making sure its directly after the setAdapter method):
s.setSelection(1);
Hoping for an alternative method going forward.
If anyone can suggest a way to only have to use one Activity to get the same result I would be grateful.