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- public class AndroidWebImage extends Activity {
- ImageView bmImage;
- LinearLayout view;
- /** Called when the activity is first created. */
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- view = (LinearLayout)findViewById(R.id.screen);
- bmImage = (ImageView)findViewById(R.id.image);
- view.setDrawingCacheEnabled(true);
- // this is the important code :)
- // Without it the view will have a dimension of 0,0 and the bitmap will be null
- view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
- MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
- view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
- view.buildDrawingCache(true);
- Bitmap b = Bitmap.createBitmap(view.getDrawingCache());
- view.setDrawingCacheEnabled(false); // clear drawing cache
- bmImage.setImageBitmap(b);
- };
- }
- Bitmap b = Bitmap.createBitmap(view.getDrawingCache());
- 09-13 12:19:26.061: W/dalvikvm(551): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
- 09-13 12:19:26.112: E/AndroidRuntime(551): Uncaught handler: thread main exiting due to uncaught exception
- 09-13 12:19:26.593: E/AndroidRuntime(551): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.velosys.interview_preparation/com.velosys.interview_preparation.activities.Certificate}: java.lang.NullPointerException
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.app.ActivityThread.access$2200(ActivityThread.java:119)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.os.Handler.dispatchMessage(Handler.java:99)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.os.Looper.loop(Looper.java:123)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.app.ActivityThread.main(ActivityThread.java:4363)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at java.lang.reflect.Method.invokeNative(Native Method)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at java.lang.reflect.Method.invoke(Method.java:521)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at dalvik.system.NativeStart.main(Native Method)
- 09-13 12:19:26.593: E/AndroidRuntime(551): Caused by: java.lang.NullPointerException
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.graphics.Bitmap.createBitmap(Bitmap.java:358)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at com.velosys.interview_preparation.activities.Certificate.onCreate(Certificate.java:76)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
- 09-13 12:19:26.593: E/AndroidRuntime(551): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)
- 09-13 12:19:26.593: E/AndroidRuntime(551): ... 11 more
- 09-13 12:19:26.661: I/dalvikvm(551): threadid=7: reacting to signal 3
- 09-13 12:19:26.661: E/dalvikvm(551): Unable to open stack trace file '/data/anr/traces.txt': Permission denied
- Bitmap bitmap = Bitmap.createBitmap( view.getLayoutParams().width, view.getLayoutParams().height, Bitmap.Config.ARGB_8888);
- Canvas canvas = new Canvas(bitmap);
- view.layout(0, 0, view.getLayoutParams().width, view.getLayoutParams().height);
- view.draw(canvas);
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