我知道,您可以找到数百个关于这个特殊主题的问题,但我已经阅读了其中的大部分,但它们没有帮助。这是堆栈跟踪:
java.lang.OutOfMemoryError: bitmap size exceeds VM budget
at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:573)
at PACKAGE.MyApp.getPhoto(MyApp.java:191)
at PACKAGE.MyApp.getEntries(MyApp.java:149)
at PACKAGE.AlarmSetup.createNotifications(AlarmSetup.java:48)
at PACKAGE.AlarmSetup.onHandleIntent(AlarmSetup.java:30)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:59)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.os.HandlerThread.run(HandlerThread.java:60)
虽然我在 Stack Overflow 上阅读了很多问题后优化了我的 Java 函数(至少我认为是这样),但还是抛出了这个异常。这是我的代码:
public Bitmap getContactPhoto(String lookup_key) {
Uri lookUpUri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_LOOKUP_URI, lookup_key);
Uri contentUri = ContactsContract.Contacts.lookupContact(ctx.getContentResolver(), lookUpUri);
try {
final int REQUIRED_SIZE = 144;
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true; // first get only the size of the image
BitmapFactory.decodeStream(ContactsContract.Contacts.openContactPhotoInputStream(ctx.getContentResolver(), contentUri), null, o);
int scale = 1;
while ((o.outWidth/scale/2) >= REQUIRED_SIZE && (o.outHeight/scale/2) >= REQUIRED_SIZE) {
scale *= 2;
}
BitmapFactory.Options oScaled = new BitmapFactory.Options();
oScaled.inSampleSize = scale; // decode with calculated sample size now
oScaled.inPurgeable = true; // prevent OutOfMemory
oScaled.inInputShareable = true; // prevent OutOfMemory
return BitmapFactory.decodeStream(ContactsContract.Contacts.openContactPhotoInputStream(ctx.getContentResolver(), contentUri), null, oScaled);
}
catch (Exception e) {
return null;
}
}
你能帮帮我吗?我变得绝望,尝试了很多改进。提前致谢!
最佳答案
问题可能不在这段代码中。也许您创建了很多无法进行垃圾回收的位图实例。尝试使用 MAT(Memory Analysis for Android Applications)检查是否存在此类实例。
关于android - "Bitmap size exceeds VM budget"虽然功能在Android中进行了优化,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12240686/