Android setImageURI out of memory error
I have a very small activity that must show an image.
If picture is not very small (for example 1.12 Mb 2560x1920) it produces out of memory on change screen orientation. I tried getDrawable.setCallback(null) but no luck.
Where am I wrong?
public class Fullscreen extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
System.gc();
setContentView(R.layout.fullscreen);
ImageView imageView = (ImageView) findViewById(R.id.full_screen_image);
long imageId = 2;
imageView.setImageURI(Uri.withAppendedPath开发者_开发技巧(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "" + imageId));
}
}
Try to add this to your onDestroy method:
ImageView imageView = (ImageView) findViewById(R.id.full_screen_image);
BitmapDrawable bd = (BitmapDrawable)imageView.getDrawable();
bd.getBitmap().recycle();
imageView.setImageBitmap(null);
It will recycle the bitmap used inside your ImageView.
Consume less memory and downsample/resize(see documentation of BitmapOptions#inSampleSize) the picture.
Your application must be leaking context. That's usually the reason why application crashes after several orientation changes. Read this carefully http://android-developers.blogspot.com/2009/01/avoiding-memory-leaks.html.
You could also use something like this:
File picture = new File("path_to_image");
if (picture.exists()) {
ImageView imageView = (ImageView)findViewById(R.id.imageView);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 2;
Bitmap myBitmap = BitmapFactory.decodeFile(picture.getAbsolutePath(), options);
imageView.setImageBitmap(myBitmap);
}
Read the following link for more information about the BitmapFactory options (especially inSampleSize, which controls the degree of subsampling): http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html
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