Android 标题

public void setTitle(CharSequence title)  //改变标题内容
setTitle("标题内容")；

requestWindowFeature(Window.FEATURE_NO_TITLE);  //隐藏标题

/*
隐藏标题和最上面的电池电量及信号栏（全屏）
*/
public void setFullScreen(){
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FALG_FULLSCREEN,WindowManager.LayoutParams.FALG_FULLSCREEN);
}

<activity
android:name=".MainActivity"
android:screenOrientation="portrait"
android:label="@string/titlebar_text">
</activity>

protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//预先设置允许改变的窗口状态，需在setCOntentView之前调用，否则设置标题时抛出运行时异常
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.custom_title);
//标题区域可设置为layout，如此可以有丰富的展现方式
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,R.layout.custom_title_1);
//R.layout.layout_custom_title_1  是自定义标题布局
}