把Activity从taskManager中删除

 

android:excludeFromRecents = "true"

 

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.example.test"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".AlertDialogActivity"
          android:launchMode="singleTask"
          android:excludeFromRecents="true"
                  android:label="@string/app_name" android:configChanges="keyboardHidden">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
 <activity android:name="DialogActivity" android:theme="@android:style/Theme.Translucent"></activity>
    </application>
    <uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name = "android.permission.CAMERA" />
<uses-permission android:name = "android.permission." />
 
<uses-feature android:name = "android.hardware.camera" />
<uses-feature android:name = "android.hardware.camera.autofocus" />

</manifest>