Image crop and resize in Android

Question

I followed the instructions below to crop an image.

http://coderzheaven.com/index.php/2011/03/crop-an-image-in-android/

The height and width of the final cropped bitmap image are both larger than those of the screen.

During the resize and crop process, out of memory error was thrown and the app is forced to quit.

The error log:

04-09 11:37:28.658: ERROR/dalvikvm-heap(4003): 435176-byte external allocation too large for this process.
04-09 11:37:28.658: ERROR/GraphicsJNI(4003): VM won't let us allocate 435176 bytes    
04-09 11:37:28.668: WARN/dalvikvm(4003): threadid=1: thread exiting with uncaught exception (group=0x4001d800)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): FATAL EXCEPTION: main    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): java.lang.OutOfMemoryError: bitmap size exceeds VM budget    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.graphics.Bitmap.nativeCreate(Native Method)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.graphics.Bitmap.createBitmap(Bitmap.java:468)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.graphics.Bitmap.createBitmap(Bitmap.java:435)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at com.test.Test.onCreate(Test.java:57)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)   
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)  
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.app.ActivityThread.access$2300(ActivityThread.java:125)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)   
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.os.Handler.dispatchMessage(Handler.java:99)   
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.os.Looper.loop(Looper.java:123)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at android.app.ActivityThread.main(ActivityThread.java:4627)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at java.lang.reflect.Method.invokeNative(Native Method)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at java.lang.reflect.Method.invoke(Method.java:521)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)    
04-09 11:37:28.708: ERROR/AndroidRuntime(4003): at dalvik.system.NativeStart.main(Native Method)

Does anyone know how to solve the problem ?

Thanks.

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Update: I solved the problem.

Answer 1

You can used crop image using following code that can solve your problem.

Matrix matrix = new Matrix();
matrix.postScale(0.5f, 0.5f);
Bitmap croppedBitmap = Bitmap.createBitmap(bitmapOriginal, 100, 100,100, 100, matrix, true);

Above method do postScalling of image before cropping, so you can get best result with cropped image without getting OOM error.

For more detail you can refer this blog

Answer 2

My co-worker just hipped me to this Android API... see ThumbnailUtils.

It does resizing and cropping for you.

http://developer.android.com/reference/android/media/ThumbnailUtils.html#extractThumbnail(android.graphics.Bitmap, int, int)