学步园

如果愿意的话，可以把Activity的标题栏给隐藏了。只需要调用requestWindowFeature()方法，同时传递Window.FEATURE_NO_TITLE常量。

public class Activity101Activity extends Activity {
    String tag = "Lifecycle";

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // ---hides the title bar---
        requestWindowFeature(Window.FEATURE_NO_TITLE);

        setContentView(R.layout.main);
    }
}