Android Canvas - Save Image not working?

You can use drawing cache of view to save image first enable drawingcache of you view by myPanel. SetDrawingCacheEnabled(true) after that in your saveImage function write following code Bitmap bitMap=v. GetDrawingCache(true); if (!APP_FILE_PATH.exists()) { APP_FILE_PATH.mkdirs(); } bitMap.

Compress(Bitmap.CompressFormat. PNG, 95, f).

You can use drawing cache of view to save image first enable drawingcache of you view by myPanel. SetDrawingCacheEnabled(true); after that in your saveImage function write following code Bitmap bitMap=v. GetDrawingCache(true); if (!APP_FILE_PATH.exists()) { APP_FILE_PATH.mkdirs(); } bitMap.

Compress(Bitmap.CompressFormat. PNG, 95, f).

Thanks for that, sadly I'm getting a NullPointerException on the last line. Does that mean the cache is empty? – Atkobeau Mar 31 at 14:23 can you paste you logcat exception detail – Sunil Pandey Mar 31 at 14:25 java.lang.

NullPointerException com.ebp.Panel. SaveAsJpg(ebpSeatingPlan. Java:121) com.ebp.ebpSeatingPlan.

OnOptionsItemSelected(ebpSeatingPlan. Java:80) android.app.Activity. OnMenuItemSelected(Activity.

Java:2200) com.android.internal.policy.impl.PhoneWindow. OnMenuItemSelected(PhoneWindow. Java?

:730) com.android.internal.view.menu.MenuItemImpl. Invoke(MenuItemImpl. Java:139) com.android.internal.view.menu.MenuBuilder.

PerformItemAction(MenuBuilder. Java:85?5) com.android.internal.view.menu.IconMenuView. InvokeItem(IconMenuView.

Java:525) – Atkobeau Mar 31 at 14:57 com.android.internal.view.menu. IconMenuItemView. PerformClick(IconMenuItemView.

Ja? Va:129) android.view.View. OnTouchEvent(View.

Java:4185) android.widget.TextView. OnTouchEvent(TextView. Java:6786) android.view.View.

DispatchTouchEvent(View. Java:3715) android.view.ViewGroup. DispatchTouchEvent(ViewGroup.

Java:884) android.view.ViewGroup. DispatchTouchEvent(ViewGroup. Java:884) com.android.internal.policy.impl.

PhoneWindow$DecorView. DispatchTouchEvent(PhoneW?indow. Java:1643) android.view.ViewRoot.

HandleMessage(ViewRoot. Java:1728) android.os.Handler. DispatchMessage(Handler.

Java:99) – Atkobeau Mar 31 at 14:58 android.os.Looper. Loop(Looper. Java:214) android.app.ActivityThread.

Main(ActivityThread. Java:4415) java.lang.reflect.Method. InvokeNative(Native Method) java.lang.reflect.Method.

Invoke(Method. Java:521) com.android.internal.os. ZygoteInit$MethodAndArgsCaller.

Run(ZygoteInit. Java:868) com.android.internal.os.ZygoteInit. Main(ZygoteInit.

Java:626) dalvik.system.NativeStart. Main(Native Method) – Atkobeau Mar 31 at 14:58.

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