2228 questions
Change the color of the action item when you click the menu in onOptionsItemSelected.For example, the following imageThere is a gray (dark) action item on the right side, but when clicked, I would lik...
On the next page of ListFragment, there is an Actionbar Activity class in When I clicked menuItems in ActionBar, I was displaying DialogFragment from a button, but Dialog immediately closes and return...
I am worried about how to transition from ListFragment to ActionBarActivity.Perhaps this part cannot be done by FragmentTransaction, so I think it is necessary to rewrite it. What should I do when I t...
I am worried about how to transition from ListFragment to ActionBarActivity.Perhaps this part cannot be done by FragmentTransaction, so I think it is necessary to rewrite it. What should I do when I t...
I am a beginner in Android development.The following code will cause an image-like error.super(context, R.layout.top_listview, items);I think I should correct the part of , but what should I do?I woul...
The physical size of the screen on Android is You can calculate using xdpi/ydpi and width/height (both pixels).However, dpi is not always an accurate value.For example, the dpi value of the Galaxy SII...
[UIView animationWithDuration:0] delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{ self.view.transform=CGAffineTransformMakeTranslation(0,0);}completion:^ {}];I understand tha...
You are about to pass an instance of Activity to Fragment, and the newInstance method:public static DailyFragment newInstance (Activity activity) { DailyFragment dailyFragment = new DailyFragment(); ...
Hello,As the title says, How do I make Activity/ArrayAdapter sparse on Android?I tried writing the code where Activity and ArrayAdapter are calling each other's methods.The fact that Activity and Arra...
DownloadListener is not called in Android 5.0 or later, what is the cause?Are there any countermeasures?It seems that it is not called only when I click on the Gmail attachment.
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