android 启动页面

很多应用都有启动页面，如何做一个高效的，退出应用后再进依旧能快速启动的启动页面。

直接贴代码

代码如下：启动页面Activity代码如下：

public class SplashScreen  extends BaseActivity{
/*
    * Called when the activity is first created.
    */

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.splashscreen);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); // 设置全屏,不需要可去掉

        new Handler().postDelayed(new Runnable() {
            public void run() {
                /* Create an Intent that will start the Main WordPress Activity. */
                Intent mainIntent = new Intent(SplashScreen.this, MainActivity.class);
                SplashScreen.this.startActivity(mainIntent);
                overridePendingTransition(R.anim.activity_in, R.anim.activity_out);// 淡出淡入动画效果
                SplashScreen.this.finish();

            }
        }, 3000); //2900 for release

    }
}

AndroidManifest.xml配置如下

 <activity
            android:name=".activity.SplashScreen"
            android:launchMode="singleTop"
            android:screenOrientation="portrait"
            android:theme="@style/Theme.AppStartLoad">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

        </activity>

styles.xml配置如下：

    <style name="Theme.AppStartLoad" parent="MainTheme">
        <item name="android:windowBackground">@mipmap/aplash_back</item><!--一张图片-->
        <item name="android:windowNoTitle">true</item>
    </style>

overridePendingTransition(R.anim.activity_in, R.anim.activity_out);// 淡出淡入动画效果

这段代码是为了让启动页面淡化过渡到app的主页面 ，两个xml文件内容可到这里查看

点击打开链接