Question

当我尝试在MainActivity.java中全屏显示我的应用时，我的应用程序崩溃了。这就是我的全屏代码：

    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_main);

}

Answer 1

您正在调用setContentView两次

//setContentView(R.layout.activity_main); //don't call here

requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
        WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);

Answer 2

请在super.onCreate上方拨打这些电话，不要拨打setcontentview two删除上方..

protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
        WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

请参阅文档......

Window.requestFeature():

的文档

必须在setContentView（）之前调用它。

Answer 3

使用此

机器人：主题=＆＃34; @android：风格/ Theme.NoTitleBar.Fullscreen＆＃34;

Answer 4

You can to this by two way either from AndroidManifest.xml or Activity itself:

1) To set your App or any individual activity display in Full Screen mode, insert the code:

<application 
    android:icon="@drawable/icon" 
    android:label="@string/app_name" 
    android:theme="@android:style/Theme.NoTitleBar.Fullscreen">

2) To set your activity as full screen mode write code before onCreate method,You can do it programatically:

public class ActivityName extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // remove title
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.main);
    }
}

全屏通过MainActivity崩溃应用程序

4 个答案: