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Android之七 闪屏的实现

2016-05-05 14:24 531 查看

Android之七 闪屏的实现

可以有两种方法实现:
:在主文件中写入
<span style="font-size:14px;">  // 取消标题
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
// 取消状态栏
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);  </span>


二:可以在AndroidManifest.xml配置文件中修改显示的状态
在application应用程序中加入
<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>


下面是具体 的实现代码:
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);
// 取消标题
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
// 取消状态栏
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);
}
});
}
}
也可以在配置文件中修改
<?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" />//取消标题栏

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

</activity>

</application>

</manifest>
UI布局代码: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>
最终显示界面:



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