2228 questions
Due to the nature of the view phaser in the Android view phaser, the current view and the view before the next view are called together. Assuming that there are about five fragments in the viewfager,W...
Could you tell me what the problem is in the program below? In the onCreate() method, findViewById() is called, and the return value is null even if you try all the id.I don't know why, but does anyon...
You are about to create a custom AlertDialog. I added the code below to styles.xml. Put color_panel_background9.png in the drawable folder. It's also in the res folder of the Android SDK. From mainAct...
I wrote a code to display a pop-up window when you select an item in a list activity. The problem is that pressing the Back key does not close the pop-up window. I was asked to catch the back key in t...
I'm having a hard time retrieving pictures of contacts on Android. I tried to google it, but I couldn't find the relevant data. Does anyone have an example of querying a contact to retrieve a photo?st...
One of the application functions I'm working on is to activate and maintain the service from the first launch of the app. The function of this service is to get the db value by doing web communication...
I'm in the process of creating an Android app through Eclipse, but it's blocked from the beginning.Currently, Eclipse has added an Android SDK to create an AVD and now an Android applicationThe projec...
Hello, RecyclerView is showing you a list of lists.If you scroll down in RecyclerView, you'll see the items that are shown on the current screen I want to know which position item it is. I wonder if t...
I have a question while studying Android.End Android 1.System.exit(1);OR2.android.os.Process.killProcess(android.os.Process.myPid());I heard that if it ends like this, the process will be terminated.I...
<Button android:id=@+id/btLogin android:layout_width=wrap_content android:layout_height=wrap_content android:background=@drawable/sky_btn android:text=@string/login android:textColor=@color/w...
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