Accessing Android Inbox/Messaging from Activity?

Is it possible to open up the default Android 开发者_运维百科Messaging activity from inside an activity you write yourself? Like for example: I press a "Mail" button inside my program, and it opens the Android Messaging app just like as if I was to press the Messaging icon on the main screen.

I did something similar to this with the Contacts activity, but only the contact list comes up, no extra functionality like Adding/Modifying/Deleting, etc.

Any ideas?

edit: I found this way to open the "Compose New Message" Activity, I just need to back it up a step. Does anyone know the correct MIME type instead of this one?

Intent sendIntent = new Intent(Intent.ACTION_VIEW); 
sendIntent.setType("vnd.android-dir/mms-sms"); 
m_activity.startActivity(sendIntent); 

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This starts the messaging app from another app:

Intent intent = new Intent("android.intent.action.MAIN");
intent.setComponent(new ComponentName("com.android.mms","com.android.mms.ui.ConversationList"));
startActivity(intent);

Just put it inside a button listener or whatever user input you want to open it from.

Enjoy :-)

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If you want to open the messaging app to view messages and not for sending a message, this should do the job:

Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.setPackage("com.google.android.apps.messaging");
startActivity(intent);