Hi,
you can decode the image bounds and calculate the sample size.code as below:
1.get the image infos:
BitmapFactory.Options options = new
BitmapFactory.Options();
options.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeFile(filePath, options);
picWidth = options.outWidth;
picHeight = options.outHeight;
picAspect = (float) picHeight / (float) picWidth;
2.calculate the sample size:
int be = (int) (width / screenWidth);
if (be <= 0)
be = 1;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = be;
3.create the Bitmap:
try {
mBitmap = BitmapFactory.decodeStream(
mContentResolver.openInputStream(mUri), null, options);
}
return mBitmap;
} catch (OutOfMemoryError e) {
System.gc();
e.printStackTrace();
if (mBitmap != null && mBitmap.isRecycled()) {
mBitmap.recycle();
mBitmap = null;
}
}
Best regards,
ted.xie
在 2012年7月16日星期一UTC+8下午8时23分50秒，B.Arunkumar写道：
>
> Hi,
>
> We have an app which renders bitmaps on imageview. On Samsung
> Galaxy, it works fine. But On Motorola Droid, it runs into memory
> issues and crashes every now and then with the following logcat.
>
> /dalvikvm-heap( 3640): 3686400-byte external allocation too large for
> this process.
> E/GraphicsJNI( 3640): VM won't let us allocate 3686400 bytes
> W/dalvikvm( 3640): threadid=11: thread exiting with uncaught exception
> (group=0x4001d7e0)
> E/AndroidRuntime( 3640): FATAL EXCEPTION: Thread-25
> E/AndroidRuntime( 3640): java.lang.OutOfMemoryError: bitmap size
> exceeds VM budget
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.nativeCreate(Native Method)
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.createBitmap(Bitmap.java:468)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessFrame(RTPClient.java:419)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessRtpVideoPacket(RTPClient.java:
> 204)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.AdvanceProcess(RTSPUDPclient.java:
> 659)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.processSelectionKey(RTSPUDPclient.java:
>
> 726)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.run(RTSPUDPclient.java:2068)
> E/AndroidRuntime( 3640): at java.lang.Thread.run(Thread.java:1096)
> W/ActivityManager( 1081): Force finishing activity
> com.example.OnVRViewer/.AsyncRecordTrial
>
> My question is even though we have a try catch on Bitmap.createBitmap
> it is still crashing. Why is the catch block not working? And how do
> we handle the exception without crashing on Motorola Droid.
>
> Following is my code right now:
>
> try
> {
> bm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
> }
> catch (Exception ex)
> {
> android.util.Log.e("Bitmap", "Error");
> }
>
> Thank you,
> B.Arunkumar
在 2012年7月16日星期一UTC+8下午8时23分50秒，B.Arunkumar写道：
>
> Hi,
>
> We have an app which renders bitmaps on imageview. On Samsung
> Galaxy, it works fine. But On Motorola Droid, it runs into memory
> issues and crashes every now and then with the following logcat.
>
> /dalvikvm-heap( 3640): 3686400-byte external allocation too large for
> this process.
> E/GraphicsJNI( 3640): VM won't let us allocate 3686400 bytes
> W/dalvikvm( 3640): threadid=11: thread exiting with uncaught exception
> (group=0x4001d7e0)
> E/AndroidRuntime( 3640): FATAL EXCEPTION: Thread-25
> E/AndroidRuntime( 3640): java.lang.OutOfMemoryError: bitmap size
> exceeds VM budget
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.nativeCreate(Native Method)
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.createBitmap(Bitmap.java:468)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessFrame(RTPClient.java:419)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessRtpVideoPacket(RTPClient.java:
> 204)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.AdvanceProcess(RTSPUDPclient.java:
> 659)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.processSelectionKey(RTSPUDPclient.java:
>
> 726)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.run(RTSPUDPclient.java:2068)
> E/AndroidRuntime( 3640): at java.lang.Thread.run(Thread.java:1096)
> W/ActivityManager( 1081): Force finishing activity
> com.example.OnVRViewer/.AsyncRecordTrial
>
> My question is even though we have a try catch on Bitmap.createBitmap
> it is still crashing. Why is the catch block not working? And how do
> we handle the exception without crashing on Motorola Droid.
>
> Following is my code right now:
>
> try
> {
> bm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
> }
> catch (Exception ex)
> {
> android.util.Log.e("Bitmap", "Error");
> }
>
> Thank you,
> B.Arunkumar
在 2012年7月16日星期一UTC+8下午8时23分50秒，B.Arunkumar写道：
>
> Hi,
>
> We have an app which renders bitmaps on imageview. On Samsung
> Galaxy, it works fine. But On Motorola Droid, it runs into memory
> issues and crashes every now and then with the following logcat.
>
> /dalvikvm-heap( 3640): 3686400-byte external allocation too large for
> this process.
> E/GraphicsJNI( 3640): VM won't let us allocate 3686400 bytes
> W/dalvikvm( 3640): threadid=11: thread exiting with uncaught exception
> (group=0x4001d7e0)
> E/AndroidRuntime( 3640): FATAL EXCEPTION: Thread-25
> E/AndroidRuntime( 3640): java.lang.OutOfMemoryError: bitmap size
> exceeds VM budget
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.nativeCreate(Native Method)
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.createBitmap(Bitmap.java:468)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessFrame(RTPClient.java:419)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessRtpVideoPacket(RTPClient.java:
> 204)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.AdvanceProcess(RTSPUDPclient.java:
> 659)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.processSelectionKey(RTSPUDPclient.java:
>
> 726)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.run(RTSPUDPclient.java:2068)
> E/AndroidRuntime( 3640): at java.lang.Thread.run(Thread.java:1096)
> W/ActivityManager( 1081): Force finishing activity
> com.example.OnVRViewer/.AsyncRecordTrial
>
> My question is even though we have a try catch on Bitmap.createBitmap
> it is still crashing. Why is the catch block not working? And how do
> we handle the exception without crashing on Motorola Droid.
>
> Following is my code right now:
>
> try
> {
> bm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
> }
> catch (Exception ex)
> {
> android.util.Log.e("Bitmap", "Error");
> }
>
> Thank you,
> B.Arunkumar
在 2012年7月16日星期一UTC+8下午8时23分50秒，B.Arunkumar写道：
>
> Hi,
>
> We have an app which renders bitmaps on imageview. On Samsung
> Galaxy, it works fine. But On Motorola Droid, it runs into memory
> issues and crashes every now and then with the following logcat.
>
> /dalvikvm-heap( 3640): 3686400-byte external allocation too large for
> this process.
> E/GraphicsJNI( 3640): VM won't let us allocate 3686400 bytes
> W/dalvikvm( 3640): threadid=11: thread exiting with uncaught exception
> (group=0x4001d7e0)
> E/AndroidRuntime( 3640): FATAL EXCEPTION: Thread-25
> E/AndroidRuntime( 3640): java.lang.OutOfMemoryError: bitmap size
> exceeds VM budget
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.nativeCreate(Native Method)
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.createBitmap(Bitmap.java:468)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessFrame(RTPClient.java:419)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessRtpVideoPacket(RTPClient.java:
> 204)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.AdvanceProcess(RTSPUDPclient.java:
> 659)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.processSelectionKey(RTSPUDPclient.java:
>
> 726)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.run(RTSPUDPclient.java:2068)
> E/AndroidRuntime( 3640): at java.lang.Thread.run(Thread.java:1096)
> W/ActivityManager( 1081): Force finishing activity
> com.example.OnVRViewer/.AsyncRecordTrial
>
> My question is even though we have a try catch on Bitmap.createBitmap
> it is still crashing. Why is the catch block not working? And how do
> we handle the exception without crashing on Motorola Droid.
>
> Following is my code right now:
>
> try
> {
> bm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
> }
> catch (Exception ex)
> {
> android.util.Log.e("Bitmap", "Error");
> }
>
> Thank you,
> B.Arunkumar
在 2012年7月16日星期一UTC+8下午8时23分50秒，B.Arunkumar写道：
>
> Hi,
>
> We have an app which renders bitmaps on imageview. On Samsung
> Galaxy, it works fine. But On Motorola Droid, it runs into memory
> issues and crashes every now and then with the following logcat.
>
> /dalvikvm-heap( 3640): 3686400-byte external allocation too large for
> this process.
> E/GraphicsJNI( 3640): VM won't let us allocate 3686400 bytes
> W/dalvikvm( 3640): threadid=11: thread exiting with uncaught exception
> (group=0x4001d7e0)
> E/AndroidRuntime( 3640): FATAL EXCEPTION: Thread-25
> E/AndroidRuntime( 3640): java.lang.OutOfMemoryError: bitmap size
> exceeds VM budget
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.nativeCreate(Native Method)
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.createBitmap(Bitmap.java:468)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessFrame(RTPClient.java:419)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessRtpVideoPacket(RTPClient.java:
> 204)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.AdvanceProcess(RTSPUDPclient.java:
> 659)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.processSelectionKey(RTSPUDPclient.java:
>
> 726)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.run(RTSPUDPclient.java:2068)
> E/AndroidRuntime( 3640): at java.lang.Thread.run(Thread.java:1096)
> W/ActivityManager( 1081): Force finishing activity
> com.example.OnVRViewer/.AsyncRecordTrial
>
> My question is even though we have a try catch on Bitmap.createBitmap
> it is still crashing. Why is the catch block not working? And how do
> we handle the exception without crashing on Motorola Droid.
>
> Following is my code right now:
>
> try
> {
> bm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
> }
> catch (Exception ex)
> {
> android.util.Log.e("Bitmap", "Error");
> }
>
> Thank you,
> B.Arunkumar
在 2012年7月16日星期一UTC+8下午8时23分50秒，B.Arunkumar写道：
>
> Hi,
>
> We have an app which renders bitmaps on imageview. On Samsung
> Galaxy, it works fine. But On Motorola Droid, it runs into memory
> issues and crashes every now and then with the following logcat.
>
> /dalvikvm-heap( 3640): 3686400-byte external allocation too large for
> this process.
> E/GraphicsJNI( 3640): VM won't let us allocate 3686400 bytes
> W/dalvikvm( 3640): threadid=11: thread exiting with uncaught exception
> (group=0x4001d7e0)
> E/AndroidRuntime( 3640): FATAL EXCEPTION: Thread-25
> E/AndroidRuntime( 3640): java.lang.OutOfMemoryError: bitmap size
> exceeds VM budget
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.nativeCreate(Native Method)
> E/AndroidRuntime( 3640): at
> android.graphics.Bitmap.createBitmap(Bitmap.java:468)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessFrame(RTPClient.java:419)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTPClient.ProcessRtpVideoPacket(RTPClient.java:
> 204)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.AdvanceProcess(RTSPUDPclient.java:
> 659)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.processSelectionKey(RTSPUDPclient.java:
>
> 726)
> E/AndroidRuntime( 3640): at
> com.example.OnVRViewer.RTSPUDPclient.run(RTSPUDPclient.java:2068)
> E/AndroidRuntime( 3640): at java.lang.Thread.run(Thread.java:1096)
> W/ActivityManager( 1081): Force finishing activity
> com.example.OnVRViewer/.AsyncRecordTrial
>
> My question is even though we have a try catch on Bitmap.createBitmap
> it is still crashing. Why is the catch block not working? And how do
> we handle the exception without crashing on Motorola Droid.
>
> Following is my code right now:
>
> try
> {
> bm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
> }
> catch (Exception ex)
> {
> android.util.Log.e("Bitmap", "Error");
> }
>
> Thank you,
> B.Arunkumar
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