how to correct this error: java.lang.OutOfMemoryError

Question

This is my code:

public void onPictureTaken(byte[] data, Camera camera) {
    Bitmap foto = BitmapFactory.decodeByteArray(data, 0, data.length);
    wid = foto.getWidth();
    hgt = foto.getHeight();

    Bitmap newImage = Bitmap.createBitmap(wid, hgt, Bitmap.Config.ARGB_4444);
    Canvas canvas = new Canvas(newImage);
    canvas.drawBitmap(foto, 0f, 0f, null);
    if (newImage.getWidth() > newImage.getHeight()) {
        Matrix matrix = new Matrix();
        matrix.postRotate(90);
        newImage.createBitmap(newImage, 0, 0, wid, hgt, matrix, true);

    }
}

This is my error:

FATAL EXCEPTION: main
java.lang.OutOfMemoryError
at android.graphics.Bitmap.nativeCreate(Native Method)
at android.graphics.Bitmap.createBitmap(Bitmap.java:689)
at android.graphics.Bitmap.createBitmap(Bitmap.java:666)
at android.graphics.Bitmap.createBitmap(Bitmap.java:633)
at com.supratecnologia.activity.Camera_Activity.onPictureTaken(Camera_Activity.java:189)
at android.hardware.Camera$EventHandler.handleMessage(Camera.java:768)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5041)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)

Solution

ost of times this happens due to large bitmap cross the limit of VM heap, so you need to scale down your image or to lower the quality of you image.

To scale image use BitmapFactory.Options.

Bitmap bm = null;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 5;
AssetFileDescriptor fileDescriptor =null;
try {
    fileDescriptor = this.getContentResolver().openAssetFileDescriptor(selectedImage,”r”);
} catch (FileNotFoundException e) {
    e.printStackTrace();
}
finally{
    try {
        bm = BitmapFactory.decodeFileDescriptor(fileDescriptor.getFileDescriptor(), null, options);
        fileDescriptor.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
} 

Or use Bitmap.compress() to lower quality of image.

And you can also follow this conversation to avoid memory error while loading images in Bitmap.