nothing is being displayed after opening the app

Question

i am facing a problem while running the app

I have three activities, there are-- MainActivity.java , a splash activity, and another activity called AirportGuide.

now when i run the app on the emulator, the splash sound is playing, but the screen is blank. after three seconds of splash, a new screen opens which is also blank. the app was working fine before i added AirportGuide class

here is the MainActivity.java

package com.shashank.sharjahinternationalairport;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;

public class MainActivity extends Activity {
ImageButton flightInfoButton;
ImageButton airportGuideButton;
ImageButton visitorInfoButton;
ImageButton saaDcaButton;
ImageButton cargoButton;



@Override
 public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    flightInfoButton = (ImageButton) findViewById(R.id.flightInfo);
     visitorInfoButton = (ImageButton) findViewById(R.id.visitorInfo);
     saaDcaButton = (ImageButton) findViewById(R.id.saaDca);        
    cargoButton = (ImageButton) findViewById(R.id.cargo);
   airportGuideButton = (ImageButton) findViewById(R.id.airportGuide);

   airportGuideButton.setOnClickListener(new View.OnClickListener(){
        @Override
        public void onClick(View V){

            Intent openAirportGuide = new Intent( MainActivity.this, AirportGuide.class);
           startActivity(openAirportGuide);

        }
      });
 }


 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
 }

}

and this is the AndroidManifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.shashank.sharjahinternationalairport"
 android:versionCode="1"
 android:versionName="1.0" >

 <uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="18" />

 <application
    android:allowBackup="true"
    android:icon="@drawable/launcher"
     android:label="@string/app_name"
     android:theme="@style/AppTheme" >
     <activity
        android:name="com.shashank.sharjahinternationalairport.Splash"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
      </activity>
       <activity
         android:name="com.shashank.sharjahinternationalairport.MainActivity"
         android:label="@string/app_name" >
         <intent-filter>
            <action android:name="com.shashank.sharjahinternationalairport.MAINACTIVITY" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
     </activity>
     <activity
        android:name="com.shashank.sharjahinternationalairport.AirportGuide"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="com.shashank.sharjahinternationalairport.AIRPORTGUIDE" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
     </activity>
  </application>

</manifest>

this is the stack trace

02-13 13:01:50.808: E/eglCodecCommon(2345): writeFully: failed: Broken pipe
02-13 13:01:50.808: E/eglCodecCommon(2345): writeFully: failed: Broken pipe
02-13 13:01:50.808: W/libEGL(2345): eglInitialize(0x96a31040) failed (EGL_SUCCESS)
02-13 13:01:50.808: E/EGL_genymotion(2345): tid 2345: eglChooseConfig(576): error 0x3001     (EGL_NOT_INITIALIZED)
02-13 13:01:50.808: D/AndroidRuntime(2345): Shutting down VM
02-13 13:01:50.808: W/dalvikvm(2345): threadid=1: thread exiting with uncaught exception     (group=0xa4cfdb20)
02-13 13:01:50.812: E/AndroidRuntime(2345): FATAL EXCEPTION: main
02-13 13:01:50.812: E/AndroidRuntime(2345): Process: com.shashank.sharjahinternationalairport,  PID: 2345
02-13 13:01:50.812: E/AndroidRuntime(2345): java.lang.IllegalArgumentException: eglChooseConfig failed EGL_NOT_INITIALIZED
02-13 13:01:50.812: E/AndroidRuntime(2345):     at     android.view.HardwareRenderer$GlRenderer.chooseEglConfig(HardwareRenderer.java:1173)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at  android.view.HardwareRenderer$GlRenderer.loadEglConfig(HardwareRenderer.java:1135)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.HardwareRenderer$GlRenderer.initializeEgl(HardwareRenderer.java:1117)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.HardwareRenderer$GlRenderer.initialize(HardwareRenderer.java:1057)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1550)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.Choreographer.doCallbacks(Choreographer.java:574)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.Choreographer.doFrame(Choreographer.java:544)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.os.Handler.handleCallback(Handler.java:733)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.os.Handler.dispatchMessage(Handler.java:95)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.os.Looper.loop(Looper.java:136)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at android.app.ActivityThread.main(ActivityThread.java:5017)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at java.lang.reflect.Method.invokeNative(Native Method)        
 02-13 13:01:50.812: E/AndroidRuntime(2345): at java.lang.reflect.Method.invoke(Method.java:515)
 02-13 13:01:50.812: E/AndroidRuntime(2345):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
02-13 13:01:50.812: E/AndroidRuntime(2345):     at dalvik.system.NativeStart.main(Native Method)

this is the splash activity

package com.shashank.sharjahinternationalairport;

import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;

public class Splash extends Activity{
MediaPlayer splashSound;
@Override
protected void onCreate(Bundle splashScreen) {
    // TODO Auto-generated method stub
    super.onCreate(splashScreen);
    setContentView(R.layout.splash);
    splashSound = MediaPlayer.create(Splash.this, R.raw.splashsound);
    splashSound.start();
    Thread timer = new Thread(){
        public void run(){
            try{
                sleep(3200);
            } catch (InterruptedException e){
                e.printStackTrace();
            }finally{
                Intent openMainActivity = new               Intent("com.shashank.sharjahinternationalairport.MAINACTIVITY");
                startActivity(openMainActivity);
            }
        }
    };
    timer.start();
}

@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    splashSound.release();
    finish();
}

}

Answer 1

Restart your emulator. Test this on a hardware device and it will probably work.