AsyncTask
An AsyncTask lets you perform operations in the background. When they’ve finished running, it then allows…
An AsyncTask lets you perform operations in the background. When they’ve finished running, it then allows…
The AppCompatActivity class is a subclass of Activity. It lives in the AppCompat Support Library, and…
The Android Support Libraries provide backward compatibility with older versions of Android. THey sit outside the…
When you create a fragment, Android Studio creates two files for you: Java code for the…
android:gravity=”value” android:gravity lets you say where you want the view’s contents to appear inside the view…
android:layout_gravity lets you say where you want views to appear in their available space. android:layout_gravity deals…
How you specify a linear layout You specify a linear layout using <LinearLayout>. You must specify…
When Android creates and destroys an activity, the activity moves from being launched to running to…