安卓項目實現閃屏功能

方法1：在主文件中寫入

<span style="font-size:14px;">  // 取消標題    
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);    
        // 取消狀態欄    
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,    
                WindowManager.LayoutParams.FLAG_FULLSCREEN);  </span>  

方法2：在AndroidManifest.xml配置文件中修改顯示的狀態

<span style="font-size:14px;"> <activity  android:name="com.example.walkerlogin1.WelcomeActivity"  
            android:label="@string/app_name"  
            android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"  
            >  
         
         </activity></span>  

 

 

具體實現代碼

 

package com.example.walkerlogin1;  
  
  
import android.app.Activity;  
import android.content.Intent;  
import android.os.Bundle;  
import android.view.animation.AlphaAnimation;  
import android.view.animation.Animation;  
import android.view.animation.Animation.AnimationListener;  
import android.widget.RelativeLayout;  
  
  
public class WelcomeActivity extends Activity {  
  
    protected void onCreate(Bundle savedInstanceState) {     
        super.onCreate(savedInstanceState);    
             // 取消標題    
             this.requestWindowFeature(Window.FEATURE_NO_TITLE);    
        // 取消狀態欄    
           this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,    
                WindowManager.LayoutParams.FLAG_FULLSCREEN);    
        setContentView(R.layout.activity_welcome);    
        RelativeLayout layoutWelcome=(RelativeLayout) findViewById(R.id.activity_welcome);    
        AlphaAnimation alphaAnimation=new AlphaAnimation(0.1f,1.0f);     
        alphaAnimation.setDuration(3000);     
        layoutWelcome.startAnimation(alphaAnimation);    
        alphaAnimation.setAnimationListener(new AnimationListener() {      
            public void onAnimationStart(Animation animation) {   
  
            }        
  
            public void onAnimationRepeat(Animation animation) {   
  
            }       
  
            public void onAnimationEnd(Animation animation) {   
                System.out.println("你好");  
                Intent  intent=new Intent(WelcomeActivity.this,GuideActivity.class);       
                startActivity(intent);    
            }   
        });    
    }  
}  



修改配置文件：

<?xml version="1.0" encoding="utf-8"?>  
<manifest xmlns:android="http://schemas.android.com/apk/res/android"  
    package="com.example.walkerlogin1"  
    android:versionCode="1"  
    android:versionName="1.0" >  
  
    <uses-sdk  
        android:minSdkVersion="8"  
        android:targetSdkVersion="17" />  
  
    <application  
        android:allowBackup="true"  
        android:icon="@drawable/ic_launcher"  
        android:label="@string/app_name"  
        android:theme="@style/AppTheme" >  
        
        <activity  android:name="com.example.walkerlogin1.MainActivity"  
            android:label="@string/app_name"></activity>  
         <activity  android:name="com.example.walkerlogin1.WelcomeActivity"  
            android:label="@string/app_name"  
            android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"  
            >  
             <intent-filter>  
                <action android:name="android.intent.action.MAIN" />//取消標題欄  
  
                <category android:name="android.intent.category.LAUNCHER" />  
            </intent-filter>   
         
         </activity>  
           
    </application>  
  
</manifest>  

 

UI布局 activity_welcome.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    xmlns:tools="http://schemas.android.com/tools"  
    android:layout_width="match_parent"  
    android:layout_height="match_parent"  
    android:background="@drawable/welcome_bg"  
    tools:context=".WelcomeActivity"   
    android:id="@+id/activity_welcome">  
  
</RelativeLayout>