Android: launchMode = & quot; singleTask & quot; and onNewInt

The android: launchMode = "singleTask" and onNewIntent (Intent intent) features have been used in recent project development. Here, we will summarize our experiences:

Android: launchMode = "singleTask" is configured in Mainifest, which ensures that there is always only one Activity in the stack, no matter how many times you start it;

OnNewIntent (Intent intent) is the parent class method of the Override Activity. It is called only when you click the Home Key to exit the Activity and start a new Intent again;

They can be used together to listen to the home Key (only when a new Intent is initiated ).

The Code is as follows:

Manifest. xml

Java code

1. <Activity android: name = ". OnNewIntentDemo"
2. Android: launchMode = "singleTask"
3. Android: label = "@ string/app_name">
4. <Intent-filter>
5. <Action android: name = "android. intent. action. MAIN"/>
6. <Category android: name = "android. intent. category. LAUNCHER"/>
7. </Intent-filter>
8. <Intent-filter>
9. <Action android: name = "android. intent. action. VIEW"/>
10. <Category android: name = "android. intent. category. DEFAULT"/>
11. <Data android: mimeType = "video/*"/>
12. </Intent-filter>
13. </Activity>

Activity

Java code

1. @ Override
2. Protected void onNewIntent (Intent intent ){
3. If (DEBUG) Log. I (TAG, "onNewIntent ~~~~~~~ Intent = "+ intent );
4. Super. onNewIntent (intent );
5. }

Note: When you press the Home Key to exit and then press the Home key for a long time, the onNewIntent will not be accessed because the Intent will not be initiated when you enter again.
From: http://blog.csdn.net/adreamer_bj/archive/2010/12/22/6091414.aspx