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How do I prevent Android taking a screenshot when my app goes to the background?
... building has the requirement that the app has to prevent the OS to take a screenshot of the app when it's being pushed into the background for security reasons. This way it won't be able to see the last active screen when switching between apps.
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Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
...nt to clear your Canvas with.
And: how can I update just a part of the screen ?
There is no such method that just update a "part of the screen" since Android OS is redrawing every pixel when updating the screen. But, when you're not clearing old drawings on your Canvas, the old drawings are st...
How to set entire application in portrait mode only?
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For any Android version
From XML
You can specify android:screenOrientation="portrait" for each activity in your manifest.xml file. You cannot specify this option on the application tag.
From Java
Other option is to do it programmatically, for example in an Activity base class:
@...
Why is printing to stdout so slow? Can it be sped up?
...can it be that writing to physical disk is WAY faster than writing to the "screen" (presumably an all-RAM op), and is effectively as fast as simply dumping to the garbage with /dev/null?
Congratulations, you have just discovered the importance of I/O buffering. :-)
The disk appears to be faster, ...
Android: Align button to bottom-right of screen using FrameLayout?
...m trying to put the zoom controls of the map on the bottom right corner of screen. I could do it with RelativeLayout using both alignParentBottom="true" and alignParentRight="true" , but with Framelayout I did not find any such attributes. How do I align it to the bottom-right of screen?
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Taking screenshot on Emulator from Android Studio
...bably might be the silliest question but still, I don't know how to take a screenshot of Emulator via Android Studio. I recently switched from Eclipse to Android Studio and I could not find it anywhere, I tried to search on web too but no help.
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Android View.getDrawingCache returns null, only null
...dth and height must be >0..............................private void takeScreenShot() { for (int i = 1; i < 4; i++) { //startDialog(); View view = ScreenShotActivity.this.findViewById(R.id.relativelayout); Bitmap bitmap = loadBitmapFromView(view);}}
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How to pinch out in iOS simulator when map view is only a portion of the screen?
...d that I am adding an MKMapView to that is say half the height of the full screen. However, when I try to pinch out on the iOS Simulator it doesn't work since the to nubs fill the entire iPad view on the simulator.
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How can I get the current screen orientation?
...onConfigurationChanged() may crash. User will use this code to get current screen orientation.
public int getScreenOrientation()
{
Display getOrient = getActivity().getWindowManager().getDefaultDisplay();
int orientation = Configuration.ORIENTATION_UNDEFINED;
if(getOrient.getWidth()==g...
Android Webview - Webpage should fit the device screen
I have tried the following to fit the webpage based on the device screen size.
21 Answers
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