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How to Create a splash screen on android
Create a class called: Splash then
paste this code into the flowing class
change the replace your main class by ".Splash" (the name of class we just created) then declare a new activity with the name of de fault class you just created
public class Splash extends Activity
{
boolean flag = false;
Runnable runnable;
Handler handler;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
runnable = new Runnable() {
@Override
public void run() {
if (!flag) {
final Intent mainIntent = new Intent(Splash.this, MainActivity.class);
Splash.this.startActivity(mainIntent);
Splash.this.finish();
}
}
};
handler = new Handler();
handler.postDelayed(runnable, 5000);
}
@Override
protected void onPause() {
super.onPause();
flag = true;
handler.removeCallbacks(runnable);
}
@Override
protected void onRestart() {
super.onRestart();
flag = false;
handler.postDelayed(runnable, 1-1);
}
}
change the replace your main class by ".Splash" (the name of class we just created) then declare a new activity with the name of de fault class you just created
finally create your activity_splash layout in the layout folder
How to play YouTube video in Android application ?
As we know playing a video stored in user device will never be a solutions specially if you app contains a large amount of information’s like a city guide, e-learning app... and so on and storing it locally we surely abuse the user and push him to uninstalled. So in this tutorial we are going to play a YouTube video with tow different methods and we are going also to play a video from an SDCARD as a demonstration of the Video View component
Very important playing a video with android emulator will never work properly you must use a real android device for testing This method will launch the YouTube app and not in a videoview All you have to do is to paste this code inside the event of your button and don't forget to replace video_id by the located on the URL of YouTube video you want to play
String video_id = "2vFLW-idOxk";
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("vnd.youtube://" + video_id);
startActivity(intent);
you can also use this method for clean and nice coding
private void startVideo(String videoID) {
// default youtube app
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse("vnd.youtube:" + videoID));
List list = getPackageManager().queryIntentActivities(i, PackageManager.MATCH_DEFAULT_ONLY);
if (list.size() == 0) {
// default youtube app not present or doesn't conform to the standard we know
// use our own activity
i = new Intent(getApplicationContext(), YouTube.class);
i.putExtra("VIDEO_ID", videoID);
}
startActivity(i);
}
Add the following permissions in the manifest file
How to check internet connection on android
1 – Setup
Create a class called ConnectionDetector and copy and paste the following code in itpackage com.example.radionabeul;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
public class ConnectionDetector {
private Context _context;
public ConnectionDetector(Context context){
this._context = context;
}
public boolean isConnectingToInternet(){
ConnectivityManager connectivity = (ConnectivityManager) _context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null)
{
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED)
{
return true;
}
}
return false;
}
}
2 – How to use It
The isConnectingToInternet() inside our class ConnectionDetector will simply return true if the connection is on and false if there is no connection and we are done.1
//declare ConnectionDetector before onCreate method private ConnectionDetector cn;2 add this code to onClick method of your button
cn = new ConnectionDetector(getApplicationContext());
if (cn.isConnectingToInternet()) {
Toast.makeText(getApplicationContext(), "internet is on",
3000).show();
}
else {
Toast.makeText(getApplicationContext(), "internet is off",
3000).show();
}
please do not forget to add ACCESS_NETWORK_STATE and INTERNET permission in AndroidManifest file "AndroidManifest.xml"
and
Android radio streaming tutorial
Just add those components to your layout 1 – Button for play with the id: buttonPlay 2 – Button for stop with the id: buttonbuttonStopPlay 3-progressBar to show the buffing of the stream id: progressBar1
import android.app.Activity;
import android.os.Bundle;
import java.io.IOException;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnBufferingUpdateListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
public class myMain extends Activity implements OnClickListener {
private ProgressBar playSeekBar;
private Button buttonPlay;
private Button buttonStopPlay;
private MediaPlayer player;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
initializeUIElements();
initializeMediaPlayer();
}
private void initializeUIElements() {
playSeekBar = (ProgressBar) findViewById(R.id.progressBar1);
playSeekBar.setMax(100);
playSeekBar.setVisibility(View.INVISIBLE);
buttonPlay = (Button) findViewById(R.id.buttonPlay);
buttonPlay.setOnClickListener(this);
buttonStopPlay = (Button) findViewById(R.id.buttonStopPlay);
buttonStopPlay.setEnabled(false);
buttonStopPlay.setOnClickListener(this);
}
public void onClick(View v) {
if (v == buttonPlay) {
startPlaying();
} else if (v == buttonStopPlay) {
stopPlaying();
}
}
private void startPlaying() {
buttonStopPlay.setEnabled(true);
buttonPlay.setEnabled(false);
playSeekBar.setVisibility(View.VISIBLE);
player.prepareAsync();
player.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
player.start();
}
});
}
private void stopPlaying() {
if (player.isPlaying()) {
player.stop();
player.release();
initializeMediaPlayer();
}
buttonPlay.setEnabled(true);
buttonStopPlay.setEnabled(false);
playSeekBar.setVisibility(View.INVISIBLE);
}
private void initializeMediaPlayer() {
player = new MediaPlayer();
try {
player.setDataSource("http://usa8-vn.mixstream.net:8138");
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
player.setOnBufferingUpdateListener(new OnBufferingUpdateListener() {
public void onBufferingUpdate(MediaPlayer mp, int percent) {
playSeekBar.setSecondaryProgress(percent);
Log.i("Buffering", "" + percent);
}
});
}
@Override
protected void onPause() {
super.onPause();
if (player.isPlaying()) {
player.stop();
}
}
}
android manifest file :as you can see i have added a internet permission and without it the application will not work
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