Out of memory sur un Widget Gallery

**LordDaedalus** · 06/09/2010, 10h16

Bonjour

Je suis en train de tester un Widget Gallery. Le programme fonctionne correctement si j'utilise les ressources de type Draw mais il annonce un out Of Memory quand je lis les photos prises par le device sur la SdCard. Les deux première photos s'affichent puis quand je fais glisser ca explose.

Voici le code de la classe de test

Code :

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public class TestGallery extends Activity {
 
	private int[] IMG;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
 
        Cursor imgCursor = managedQuery
		(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
		                                new String[]{android.provider.MediaStore.Images.Media._ID},
		                                null, null,
		null); 
 
		imgCursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,null,null, null,null); 
 
 
 
		int nbrCol = imgCursor.getColumnCount();
		Log.i("Test","nbrCol = " + String.valueOf(nbrCol));
 
 
		int Pos = 0;
		imgCursor.moveToFirst();
		//while(!imgCursor.isAfterLast()){
		ArrayList<String> arrayImage = new ArrayList<String>();
		for (int Cpt = 0; Cpt < 65; Cpt++){
    		String nom = imgCursor.getString(1);
    		if (nom.contains("Perso")){
    			arrayImage.add(imgCursor.getString(0));
    			Log.i("Test","ID = " + imgCursor.getString(0) + " nom = " + nom + " size = " + imgCursor.getString(2));
    		}
 
 
    		imgCursor.moveToNext();
		}
 
		int nbrPhoto = arrayImage.size();
		Log.i("Test","nbrPhoto = " + String.valueOf(nbrPhoto));
		IMG = new int[nbrPhoto];
		for (int Cpt = 0; Cpt < nbrPhoto; Cpt++){
			IMG[Cpt] = Integer.parseInt(arrayImage.get(Cpt));
		}
 
 
		Gallery galleryPhoto = (Gallery) findViewById(R.id.Gallery01);
		ImageAdapter imageAdapter = new ImageAdapter(this, IMG);
		galleryPhoto.setAdapter(imageAdapter);
    }
}

Voici le code de la classe ImageAdpater

Code :

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public class ImageAdapter extends BaseAdapter{
 
	int galleryBkgd;
    private Context context;
    private int[]images;
 
    public ImageAdapter(Context cont, int[] img) {
        context = cont;
        images = img;
        TypedArray  typedArray = context.obtainStyledAttributes(R.styleable.Gallery);
        galleryBkgd = typedArray.getResourceId(R.styleable.Gallery_android_galleryItemBackground, 0);
        typedArray.recycle();
    }
 
	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		return images.length;
	}
 
	@Override
	public Object getItem(int position) {
		// TODO Auto-generated method stub
		return position;
	}
 
	@Override
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return position;
	}
 
	@Override
	public View getView(int position, View view, ViewGroup parent) {
		// TODO Auto-generated method stub
 
		ImageView imageView = new ImageView(context);
		//imageView.setImageResource(images[position]);
		imageView.setImageURI(Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,String.valueOf(position)));    
 
 
		imageView.setBackgroundResource(galleryBkgd);
		return imageView;
	}
 
}

Et enfin le message d'injures

Code :

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09-06 10:04:09.708: ERROR/AndroidRuntime(20338): java.lang.OutOfMemoryError: bitmap size exceeds VM budget
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:451)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:322)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:688)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.graphics.drawable.Drawable.createFromStream(Drawable.java:657)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.ImageView.resolveUri(ImageView.java:557)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.ImageView.setImageURI(ImageView.java:289)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at com.android.testgallery.ImageAdapter.getView(ImageAdapter.java:51)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.Gallery.makeAndAddView(Gallery.java:754)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.Gallery.fillToGalleryRight(Gallery.java:703)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.Gallery.layout(Gallery.java:634)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.Gallery.onLayout(Gallery.java:339)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.view.View.layout(View.java:6578)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.LinearLayout.onLayout(LinearLayout.java:918)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.view.View.layout(View.java:6578)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.view.View.layout(View.java:6578)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.LinearLayout.onLayout(LinearLayout.java:918)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.view.View.layout(View.java:6578)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.view.View.layout(View.java:6578)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.view.ViewRoot.performTraversals(ViewRoot.java:1056)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1774)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.os.Handler.dispatchMessage(Handler.java:99)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.os.Looper.loop(Looper.java:123)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at android.app.ActivityThread.main(ActivityThread.java:4321)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at java.lang.reflect.Method.invokeNative(Native Method)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at java.lang.reflect.Method.invoke(Method.java:521)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
09-06 10:04:09.708: ERROR/AndroidRuntime(20338):     at dalvik.system.NativeStart.main(Native Method)

Une idée ?

Merci d'avance

**androidisme** · 07/09/2010, 12h16

C'est normal que ça finisse par exploser avec les photos de la sdCard, celles-ci étant beaucoup plus lourdes que des ressources de type draw. L'application garde en mémoire les premières images visualisées, ce qui fait qu'à un moment, c'est trop. C'est pour cette raison que lorsqu'on manipule des bitmap il est conseillé de faire des "recycle" le plus souvent possible.

Déjà, pour commencer, je te conseillerai de travailler avec des bitmaps, en utilisant la méthode setImageBitmap d'ImageView. Ensuite, de deux choses l'une : ou bien tu manipules tes bitmaps pour qu'ils pèsent moins lourds (redimensionnement, baisse de quality), ou t'essaies de placer des bitmap.recycle, même si je dois admettre que je vois pas trop où.

En espérant que ça a pu t'aider

**LordDaedalus** · 07/09/2010, 15h40

Bravo pour l'idée. Effectivement il a fallu que je retravaille le code dans ce sens là pour y arriver

Pour ceux que cela intéresse, voici le code du programme de test :

Code :

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public class TestGallery extends Activity {
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
 
        Cursor imgCursor = managedQuery
		(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,new String[]{android.provider.MediaStore.Images.Media._ID},null, null,null); 
		imgCursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,null,null, null,null); 
 
		int nbrCol = imgCursor.getColumnCount();
		Log.i("Test","nbrCol = " + String.valueOf(nbrCol));
 
		imgCursor.moveToFirst();
		ArrayList<String> arrayPath = new ArrayList<String>();
		for (int Cpt = 0; Cpt < 65; Cpt++){
    		String nom = imgCursor.getString(1);
    		if (nom.contains("Perso")){
    			arrayPath.add(imgCursor.getString(1));
    			Log.i("Test","ID = " + imgCursor.getString(0) + " nom = " + nom + " size = " + imgCursor.getString(2));
    		}
    		imgCursor.moveToNext();
		}
		ArrayList<BitmapDrawable> arrayListBmp = new ArrayList<BitmapDrawable>();
		for (int Cpt = 0; Cpt < arrayPath.size(); Cpt++){
			BitmapFactory.Options options = new BitmapFactory.Options();
			options.inSampleSize = 8;
			Bitmap bitmapOrg = BitmapFactory.decodeFile(arrayPath.get(Cpt), options);
			int width = bitmapOrg.getWidth();
			int height = bitmapOrg.getHeight();
			int newWidth = 50;
			int newHeight = 50;
			float scaleWidth = ((float) newWidth) / width;
			float scaleHeight = ((float) newHeight) / height;
			Matrix matrix = new Matrix();
			matrix.postScale(scaleWidth, scaleHeight);
 
			Bitmap resizedBitmap = Bitmap.createBitmap(bitmapOrg, 0, 0,width, height, matrix, true);
			BitmapDrawable bmd = new BitmapDrawable(resizedBitmap);
			arrayListBmp.add(bmd);
		}
 
		Gallery galleryPhoto = (Gallery) findViewById(R.id.Gallery01);
		ImageAdapter imageAdapter = new ImageAdapter(this, arrayListBmp);
		galleryPhoto.setAdapter(imageAdapter);
 
    }
}

et voici le code la classe ImageAdapter

Code :

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public class ImageAdapter extends BaseAdapter{
 
	int galleryBkgd;
    private Context context;
    ArrayList<BitmapDrawable> images;
 
    public ImageAdapter(Context cont, ArrayList<BitmapDrawable> arrayListBmp) {
        context = cont;
        images = arrayListBmp;
        TypedArray  typedArray = context.obtainStyledAttributes(R.styleable.Gallery);
        galleryBkgd = typedArray.getResourceId(R.styleable.Gallery_android_galleryItemBackground, 0);
        typedArray.recycle();
    }
 
	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		return images.size();
	}
 
	@Override
	public Object getItem(int position) {
		// TODO Auto-generated method stub
		return position;
	}
 
	@Override
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return position;
	}
 
	@Override
	public View getView(int position, View view, ViewGroup parent) {
		// TODO Auto-generated method stub
		ImageView imageView = new ImageView(context);
		imageView.setImageDrawable(images.get(position));
		imageView.setBackgroundResource(galleryBkgd);
 
		return imageView;
	}
 
}

Out of memory sur un Widget Gallery

Android

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