All About ANDROID

To play a wav file read the wav file and pass the bytes to audio track chunck by chunk. private void playWaveFile(){                 // define the buffer size for audio track         int minBufferSize = AudioTrack.getMinBufferSize(8000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT);         int bufferSize = 512;         AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_VOICE_CALL, 8000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, minBufferSize, AudioTrack.MODE_STREAM);         String filepath = "File Path";         int count = 0;         byte[] data = new byte[bufferSize];         try {             FileInputStream fileInputStream = new FileInputStream(filepath);             DataInputStream dataInputStream = new DataInputStream(fileInputStream);             audioTrack.play();                         while((count = dataInputStream.read(data, 0, bufferSize)) > -1){                 audioTrack.write(data, 0, count);

We can uninstall an installed application on your  Android device. Steps- 1. Create an intent object with an action ACTION_DELETE. 2. Give the data as the package name.  and , // Code to uninstall the app Intent intent = new Intent(Intent.ACTION_DELETE); intent.setData(Uri.parse("package:com.package.Appname")); startActivity(intent);

There are some useful methods to retrieve the platform related information of the device programmatic ally   Method to get the manufacturer of the device      /**      * Get the Manufacturer of the Device      * @return String      */     public String getManufacurer(){         return android.os.Build.MANUFACTURER;     }    Method to get the device model     /**      *  Get the Model of the Device      * @return String      */     public String getModel(){         return android.os.Build.MODEL;     }   Method  to get the OS build number      /**      * Get the Build Number of the OS      * @return String      */     public String getOSBuildNumber(){         return android.os.Build.DISPLAY;     }      Using Telephony Manager:- TelephonyManager mTelephonyMgr = null; You do not instantiate this class directly; you can retrieve a reference to an instance through mTelephonyMgr = (TelephonyManager) context.getSystemService(Context.