[android] 练习样式主题自定义activity切换动画详解手机开发

<?xml version="1.0" encoding="utf-8"?> 
<alpha xmlns:android="http://schemas.android.com/apk/res/android" 
    android:duration="3000" 
    android:fromAlpha="0.0" 
    android:toAlpha="1.0" />

<?xml version="1.0" encoding="utf-8"?> 
<alpha xmlns:android="http://schemas.android.com/apk/res/android" 
    android:fromAlpha="1.0"  
    android:toAlpha="0.0" 
    android:duration="3000"/>

<?xml version="1.0" encoding="utf-8"?> 
<resources xmlns:android="http://schemas.android.com/apk/res/android"> 
    <!-- 自定义动画样式 --> 
    <style name='fade' parent="@android:style/Animation.Activity"> 
        <item name="android:activityOpenEnterAnimation">@anim/fade_in</item> 
        <item name="android:activityOpenExitAnimation">@anim/fade_out</item> 
        <item name="android:activityCloseEnterAnimation">@anim/fade_in</item> 
        <item name="android:activityCloseExitAnimation">@anim/fade_out</item> 
    </style> 
    <!-- 自定义动画主题 --> 
    <style name="Theme.Tsh" parent="@android:style/Theme.Light.NoTitleBar"> 
        <item name="android:windowAnimationStyle">@style/fade</item> 
    </style> 
</resources>

package com.example.tsh; 
 
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.os.Handler; 
 
public class MainActivity extends Activity { 
    private Handler handler=new Handler(); 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
        // TODO Auto-generated method stub 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.activity_main); 
        handler.postDelayed(new Runnable() { 
            @Override 
            public void run() { 
                Intent intent=new Intent(MainActivity.this, TwoActivity.class); 
                startActivity(intent); 
            } 
        }, 3000); 
    } 
}

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.tsh" 
    android:versionCode="1" 
    android:versionName="1.0" > 
 
    <uses-sdk 
        android:minSdkVersion="8" 
        android:targetSdkVersion="21" /> 
 
    <application 
        android:allowBackup="true" 
        android:icon="@drawable/ic_launcher" 
        android:label="ss" > 
        <activity 
            android:name=".MainActivity" 
            android:label="首页" 
            android:theme="@style/Theme.Tsh" > 
            <intent-filter> 
                <action android:name="android.intent.action.MAIN" /> 
 
                <category android:name="android.intent.category.LAUNCHER" /> 
            </intent-filter> 
        </activity> 
        <activity 
            android:name=".TwoActivity" 
            android:theme="@style/Theme.Tsh" > 
        </activity> 
    </application> 
 
</manifest>