Bitmap.copy 函数中的 java.lang.OutOfMemoryError

Question

I thought there is two copies of same object.that may be the issue.but I do not know how to solve that.please help me.Thanks in advance

protected void onDraw(Canvas canvas) {

        Drawable drawable = getDrawable();

        if (drawable == null) {
            return;
        }

        if (getWidth() == 0 || getHeight() == 0) {
            return;
        }
        Bitmap b = ((BitmapDrawable) drawable).getBitmap();
// I got error in this line.
        Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);

        int w = getWidth(), h = getHeight();

        Bitmap roundBitmap = getRoundedCroppedBitmap(bitmap, w);
        canvas.drawBitmap(roundBitmap, 0, 0, null);

    }

logcat

10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime: FATAL EXCEPTION: main
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime: java.lang.OutOfMemoryError
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.graphics.Bitmap.nativeCopy(Native Method)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.graphics.Bitmap.copy(Bitmap.java:403)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at com.example.rajitha.myapplication.RoundedImageView.onDraw(RoundedImageView.java:39)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.View.draw(View.java:11054)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.View.getDisplayList(View.java:10493)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.ViewGroup.drawChild(ViewGroup.java:2958)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2596)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.View.getDisplayList(View.java:10491)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.ViewGroup.drawChild(ViewGroup.java:2958)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2596)
10-18 11:04:33.208 32110-32110/com.example.rajitha.myapplication E/AndroidRuntime:     at android.view.View.draw(View.java:11057)
10-18 11:04:33.208 32110-32110/com.e

Answer 1

java.lang.OutOfMemoryError: 请求的大小超过 VM 限制。此错误表明 Java 应用程序尝试分配一个数组，该数组的大小大于堆大小。

OutOfMemoryError 继承自VirtualMachineError类，表示JVM坏了，或者资源耗尽无法运行。

Verify that your application does not store unnecessary information. Store and maintain only those pieces of information required for the proper execution of your Java application.

请阅读下面的文档

1. http://developer.android.com/intl/es/training/displaying-bitmaps/load-bitmap.html
2. Strange out of memory issue while loading an image to a Bitmap object