Android 隱藏標題欄和全屏示例

在這個示例中，我們將解釋如何隱藏標題欄以及如何在全屏模式下顯示內容。愛掏網(wǎng) - it200.com

需要調用Activity的 requestWindowFeature(Window.FEATURE_NO_TITLE) 方法來隱藏標題。愛掏網(wǎng) - it200.com但是，它必須在setContentView方法之前編碼。愛掏網(wǎng) - it200.com

隱藏Activity標題欄的代碼

使用 getSupportActionBar() 方法來檢索ActionBar類的實例。愛掏網(wǎng) - it200.com調用ActionBar類的hide()方法隱藏標題欄。愛掏網(wǎng) - it200.com

requestWindowFeature(Window.FEATURE_NO_TITLE);//will hide the title 
getSupportActionBar().hide(); //hide the title bar

啟用全屏模式的代碼

Window類的 setFlags() 方法用于在全屏模式下顯示內容。愛掏網(wǎng) - it200.com您需要在setFlags方法中傳遞 WindowManager.LayoutParams.FLAG_FULLSCREEN 常量。愛掏網(wǎng) - it200.com

this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
               WindowManager.LayoutParams.FLAG_FULLSCREEN); //show the activity in full screen

Android隱藏標題欄和全屏示例

讓我們看一下在安卓中隱藏標題欄的完整代碼。愛掏網(wǎng) - it200.com

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>  
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    xmlns:app="http://schemas.android.com/apk/res-auto"  
    xmlns:tools="http://schemas.android.com/tools"  
    android:layout_width="match_parent"  
    android:layout_height="match_parent"  
    tools:context="first.javatpoint.com.hidetitlebar.MainActivity">  

    <TextView  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:text="Hello World!"  
        app:layout_constraintBottom_toBottomOf="parent"  
        app:layout_constraintLeft_toLeftOf="parent"  
        app:layout_constraintRight_toRightOf="parent"  
        app:layout_constraintTop_toTopOf="parent" />  

</android.support.constraint.ConstraintLayout>  

Activity類

package first.javatpoint.com.hidetitlebar;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE); //will hide the title 
        getSupportActionBar().hide(); // hide the title bar
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
               WindowManager.LayoutParams.FLAG_FULLSCREEN); //enable full screen
        setContentView(R.layout.activity_main);


    }
}

輸出：僅隱藏標題

輸出：隱藏標題欄并啟用全屏模式