如何创建透明的Activity

1、新建一个style

<style name="my_Transparent">
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:backgroundDimEnabled">false</item>
</style>

2、创建Activity

public class MainActivity extends BaseActivity {
    private final String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
　　　　　//other初始化
        initData();
    }
｝

3、AndroidManifest.xml中引用

<activity
    android:name="com.example.activity.MainActivity"
    android:screenOrientation="portrait"
    android:theme="@style/my_Transparent"
    >
    <!--android:theme="@android:style/Theme.Translucent"-->

    <intent-filter>
        <action android:name="android.intent.action.VIEW"/>
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
    </intent-filter>
</activity>