Several uses of the Android intent detailed analysis _android

Intent should be considered something peculiar to Android. You can specify in intent the action to be performed by the program (for example, view,edit,dial), and the data that the program needs to perform to the action. is specified, the Android system automatically looks for the application that best meets your specific requirements and executes the program as soon as the startactivity () is invoked.

The following is a list of the uses of several intent
Display Web pages:

Copy Code code as follows:

Uri uri = uri.parse ("http://www.google.com");
Intent it = new Intent (Intent.action_view,uri);
StartActivity (IT);

Show Map:

Copy Code code as follows:

Uri uri = uri.parse ("geo:38.899533,-77.036476");
Intent it = new Intent (Intent.action_view,uri);
StartActivity (IT);

Path planning:

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Uri uri = Uri.parse ("http://maps.google.com/maps?f=d&saddr=startlat%20startlng&daddr=endlat%20endlng& Hl=en ");
Intent it = new Intent (Intent.action_view,uri);
StartActivity (IT);

Dial number:
Calling dialing Programs

Copy Code code as follows:

Uri uri = uri.parse ("tel:xxxxxx");
Intent it = new Intent (intent.action_dial, URI);
StartActivity (IT);
Uri uri = uri.parse ("tel.xxxxxx");
Intent it =new Intent (Intent.action_call,uri);

To use this, you must add <uses-permission id= "Android.permission.CALL_PHONE" to the configuration file/>
Send Sms/mms
Call the program that sent the message

Copy Code code as follows:

Intent it = new Intent (Intent.action_view);
It.putextra ("Sms_body", "The SMS Text");
It.settype ("vnd.android-dir/mms-sms");
StartActivity (IT);

Send SMS

Copy Code code as follows:

Uri uri = uri.parse ("smsto:0800000123");
Intent it = new Intent (intent.action_sendto, URI);
It.putextra ("Sms_body", "The SMS Text");
StartActivity (IT);

Send MMS

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Uri uri = uri.parse ("Content://media/external/images/media/23");
Intent it = new Intent (intent.action_send);
It.putextra ("Sms_body", "some text");
It.putextra (Intent.extra_stream, URI);
It.settype ("Image/png");
StartActivity (IT);

Send email

Copy Code code as follows:

Uri uri = uri.parse ("mailto:xxx@abc.com");
Intent it = new Intent (intent.action_sendto, URI);
StartActivity (IT);
Intent it = new Intent (intent.action_send);
It.putextra (Intent.extra_email, "me@abc.com");
It.putextra (Intent.extra_text, "The email body TEXT");
It.settype ("Text/plain");
StartActivity (Intent.createchooser (it, "Choose Email Client"));
Intent it=new Intent (intent.action_send);
String[] tos={"me@abc.com"};
String[] ccs={"you@abc.com"};
It.putextra (Intent.extra_email, TOS);
It.putextra (INTENT.EXTRA_CC, CCS);
It.putextra (Intent.extra_text, "The email body TEXT");
It.putextra (Intent.extra_subject, "The email SUBJECT text");
It.settype ("message/rfc822");
StartActivity (Intent.createchooser (it, "Choose Email Client"));

Add attachment

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Intent it = new Intent (intent.action_send);
It.putextra (Intent.extra_subject, "The email SUBJECT text");
It.putextra (Intent.extra_stream, "File:///sdcard/mysong.mp3");
Sendintent.settype ("Audio/mp3");
StartActivity (Intent.createchooser (it, "Choose Email Client"));

Play Multimedia

Copy Code code as follows:

Intent it = new Intent (Intent.action_view);
Uri uri = uri.parse ("File:///sdcard/song.mp3");
It.setdataandtype (URI, "Audio/mp3");
StartActivity (IT);
Uri uri = Uri.withappendedpath (MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");
Intent it = new Intent (Intent.action_view, URI);
StartActivity (IT);

Uninstall Program

Copy Code code as follows:

Uri uri = uri.fromparts ("package", strpackagename, NULL);
Intent it = new Intent (Intent.action_delete, URI);
StartActivity (IT);