博客

getWindow(): Retrieve the current

Window

for the activity. This can be used to directly access parts of the Window API that are not available through Activity/Screen.

Sample code:

public class DialogActivity extends Activity {<br /> /**<br /> * Initialization of the Activity after it is first created. Must at least<br /> * call {@link android.app.Activity#setContentView setContentView()} to<br /> * describe what is to be displayed in the screen.<br /> */<br /> @Override<br /> protected void onCreate(Bundle savedInstanceState) {<br /> // Be sure to call the super class.<br /> super.onCreate(savedInstanceState);</p> <p> requestWindowFeature(Window.FEATURE_LEFT_ICON);</p> <p> // See assets/res/any/layout/dialog_activity.xml for this<br /> // view layout definition, which is being set here as<br /> // the content of our screen.<br /> setContentView(R.layout.dialog_activity);</p> <p> getWindow().setFeatureDrawableResource(Window.FEATURE_LEFT_ICON,<br /> android.R.drawable.ic_dialog_alert);<br /> }<br /> }