主要练习了自定义样式和主题,继承android系统默认的样式并修改,练习xml定义淡入淡出动画
anim/fade_in.xml
<?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" />
anim/fade_out.xml
<?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"/>
values/styles.xml
<?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>
MainActivity.java
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);
}
}
Manifest.xml
<?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>