消除 activity 启动时白屏、黑屏问题

默认情况下 activity 启动的时候先把屏幕刷成白色,再绘制界面,绘制界面或多或少有点延迟,这段时间中你看到的就是白屏,显然影响用户体验,怎么消除呢?


在 Activity theme 设置style 即可

 

    <style name="AppTheme" parent="android:Theme.Light.NoTitleBar">  

        <item name="android:windowIsTranslucent">true</item>  

        <item name="android:windowNoTitle">true</item>  

        <item name="android:windowActionBar">false</item>  

        <item name="android:windowBackground">@android:color/transparent</item>  

        <!-- All customizations that are NOT specific to a particular API-level can go here. -->  

    </style>  

 

 

 

    <application  

            android:name="com.skymobi.moposns.MyApplication"  

            android:allowBackup="true"  

            android:icon="@drawable/ic_launcher"  

            android:label="@string/app_name"  

            android:theme="@style/AppTheme" >  

            <activity  

                android:name="com.skymobi.moposns.MainActivity"  

                android:label="@string/app_name"  

                android:screenOrientation="portrait" >  

                <intent-filter>  

                    <action android:name="android.intent.action.MAIN" />  

      

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

                </intent-filter>  

            </activity>  

 

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