Android Intent passing list or object

Method One:
If you simply pass list<string> or list<integer>, you can use it directly.

Java code

Intent.putstringarraylistextra (name, value)

Intent.putintegerarraylistextra (name, value)

Method Two:  
If you are passing list<object>, you can convert the list to serializable type and then through  
Java code    Putextras (key,  (Serializable) list)   
method passed past, accepted with  
Java code    (list< yourobject>)  getintent (). getserializable (key)   
to receive list<yourobject> data  

But remember that your yourobject class must implement Serializable interface  

Method Three:  
one is  
Java code    Bundle.putserializable (key,object);   
another is  
Java code   bundle.putparcelable (Key,  object);   
Of course, these objects have certain conditions, the former is the implementation of the serializable interface, and the latter is the implementation of the Parcelable interface  


Method four:  
used intent to feel inconvenient we can write a global data   in application;

1. Create a subclass of your own android.app.Application  
2, declare this class in manifest,  
3. This is where Android builds a globally available instance that you can use Context.getapplicationcontext anywhere else () method to obtain the state (variable) of the instance.  

Inherits application 
Java code   

Class MyApp extends Application {

Private String MyState;

Public String getState () {

return mystate;

}

public void SetState (String s) {

MyState = s;

}

}

Regarding the configuration in the Androidmanifest.xml, it is possible to add a name directly to application, as shown below:
Java code <application android:name= ". MyApp "android:icon=" @drawable/icon "android:label=" @string/app_name ">

Use
Java code

Class Blah extends Activity {

@Override

public void OnCreate (Bundle b) {

...

MyApp appState = (MyApp) getapplicationcontext ());

String state = Appstate.getstate ();

...

}

}

This is reproduced, but feel that they are more commonly used to facilitate participation in the open here: http://hi.baidu.com/ihsauqaxblbdmwq/item/dfc9cf9c352b0bdf1a49dfd5

Android Intent passing list or object