About how Android calls the system image browser and returns the image path

The method for calling the system image browser is as follows:

Java code

1. Intent intent = new intent (intent. action_pick, Android. provider. mediastore. Images. Media. external_content_uri );
2. Startactivityforresult (intent, image_select );

 

 

The activitity callback method is as follows:

 

 

Java code

1. Protected void onactivityresult (INT requestcode, int resultcode, intent data)
2. {
3. If (resultcode = activity. result_ OK)
4. {
5. Uri uri = data. getdata ();
6. Cursor cursor = This. getcontentresolver (). Query (Uri, null );
7. Cursor. movetofirst ();
8. For (INT I = 0; I <cursor. getcolumncount (); I ++)
9. {// Obtain the column name and detailed information of the image URI
10. System. Out. println (I + "-" + cursor. getcolumnname (I) + "-" + cursor. getstring (I ));
11. }
12. }
13. }

 

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