Difference: launcher does not return a callProgramAny information, such as sending mail tasks; chooser returns certain information to the calling program, such as album selection.
Launchers starters:
Emailcomposetask: Start the email sending application.
Marketplacedetailtask:Start the marketplace client application and display the details of the specified application.
Marketplacehubtask: Start the marketplace client application.
Marketplacereviewtask: Start the review page of the marketplace client application.
Marketplacesearchtask: Start the search page of the marketplace client application.
Mediaplayerlauncher: Start the meidaplayer application.
Phonecalltask: Start the call application.
Searchtask: Start the search application.
Smscomposetask: Start the text messaging application.
Webbrowsertask: Start IE.
Choosers selector:
Emailaddresschoosertask: Start the email address selection interface and return the email address.
Cameracapturetask: Start the photo page and return the photo image after taking the photo.
Phonenumberchoosertask: Start the phone number selection interface and return the phone number.
Photochoosertask: Start the Image Selection interface and return the image information.
Saveemailaddresstask: Start the email address saving interface. After selecting the email address, the system returns whether the email address is successfully saved.
Savephonenumbertask: Start the save phone number page. After selecting the phone number, the system returns whether the phone number is successfully saved.