Intent. Action for Android Development

This article describes the common functions of Intent in Android.

 

1 Intent. ACTION_MAIN

String: android. intent. action. MAIN

Identifies Activity as the beginning of a program. It is commonly used.

Input: nothing

Output: nothing

 

<Activity android: name = ". Main" android: label = "@ string/app_name">
<Intent-filter>
<Action android: name = "android. intent. action. MAIN"/>
<Category android: name = "android. intent. category. LAUNCHER"/>
</Intent-filter>

</Activity>

 

2 Intent. Action_CALL

Stirng: android. intent. action. CALL

Call the specified phone number.

Input: phone number. Data format: tel: + phone number

Output: Nothing

 

Intent intent = new Intent ();

Intent. setAction (Intent. ACTION_CALL );
Intent. setData (Uri. parse ("tel: 1320010001 ");
StartActivity (intent );

 

3 Intent. Action. DIAL

String: action. intent. action. DIAL

Call dial-up panel

Intent intent = new Intent ();

Intent. setAction (Intent. ACTION_DIAL); // android. intent. action. DIAL
Intent. setData (Uri. parse ("tel: 1320010001"); startActivity (intent );

Input: phone number. Data format: tel: + phone number

Output: Nothing

Note: Open the dialing UI of Android. If no data is set, an empty UI is opened. If data is set, action. DIAL calls getData () to obtain the phone number.

However, the data format of the phone number is tel: + phone number.

 

4 Intent. Action. ALL_APPS

String: andriod. intent. action. ALL_APPS

List all applications.

Input: Nothing.

Output: Nothing.

 

5 Intent. ACTION_ANSWER

Stirng: android. intent. action. ANSWER

Handle incoming calls.

Input: Nothing.

Output: Nothing.

 

6 Intent. ACTION_ATTACH_DATA

String: android. action. ATTCH_DATA

Do not specify that some data should be attached to other places. For example, image data should be attached to contacts.

Input: Data

Output: nothing

 

7 Intent. ACTION_BUG_REPORT

String: android. intent. action. BUG_REPORT

Display Dug reports.

Input: nothing

Output: nothing

 

8 Intent. Action_CALL_BUTTON

String: android. action. intent. CALL_BUTTON.

The user presses the "dial" key. The test shows "call history"

Input: nothing

Output: nothing

 

Intent intent = new Intent (Intent. ACTION_CALL_BUTTON );

StartActivity (intent );

 

9 Intent. ACTION_CHOOSER

String: android. intent. action. CHOOSER

Display an activity selector that allows users to select what they want before the process, corresponding to Intent. ACTION_GET_CONTENT.

 

10. Intent. ACTION_GET_CONTENT

String: android. intent. action. GET_CONTENT

Allow users to select special types of data and return (special types of data: Take a photo or record a piece of audio)

Input: Type

Output: URI

 

Int requestcodes = 1001;

Intent intent = new Intent (Intent. ACTION_GET_CONTENT); // "android. intent. action. GET_CONTENT"
Intent. setType ("image/*"); // view type. If it is another type, replace it with video/* or */*
Intent wrapperIntent = Intent. createChooser (intent, null );

StartActivityForResult (wrapperIntent, requestCode );

11 Intent. ACTION_VIEW

String android. intent. action. VIEW

Displays user data.

Generally, the corresponding Activity is opened based on the user's data type.

For example, tel: 13400010001 open the dialup program, the http://www.g.cn will open the browser and so on.

 

Uri uri = Uri. parse ("http://www.google.com"); // Browser

Uri uri = Uri. parse ("tel: 1232333"); // dialer
Uri uri = Uri. parse ("geo: 39.899533, 116.036476"); // open the map to locate
Intent it = new Intent (Intent. ACTION_VIEW, uri); startActivity (it );

// Play the video
Intent intent = new Intent (Intent. ACTION_VIEW );
Uri uri = Uri. parse ("file: // sdcard/media.mp4 ");
Intent. setDataAndType (uri, "video /*");
StartActivity (intent );

// Call the SMS sending program
Intent it = new Intent (Intent. ACTION_VIEW );
It. putExtra ("sms_body", "information content ...");
It. setType ("vnd. android-dir/mms-sms ");
StartActivity (it );

 

12 Intent. ACTION_SENDTO

String: android. intent. action. SENDTO Description: send Short Messages

 

// Send Short Message

Uri uri = Uri. parse ("smsto: 13200100001 ");
Intent it = new Intent (Intent. ACTION_SENDTO, uri );
It. putExtra ("sms_body", "information content ...");
StartActivity (it );

 

// Send the MMS Message. The device will prompt you to select an appropriate program for sending.

Uri uri = Uri. parse ("content: // media/external/images/media/23 ");
// Resources in the device (images or other resources)
Intent intent = new Intent (Intent. ACTION_SEND );
Intent. putExtra ("sms_body", "content ");
Intent. putExtra (Intent. EXTRA_STREAM, uri );
Intent. setType ("image/png ");
StartActivity (it );

// Email

Intent intent = new Intent (Intent. ACTION_SEND );
String [] tos = {"android1@163.com "};
String [] ccs = {"you@yahoo.com "};
Intent. putExtra (Intent. EXTRA_EMAIL, tos );
Intent. putExtra (Intent. EXTRA_CC, ccs );
Intent. putExtra (Intent. EXTRA_TEXT, "The email body text ");
Intent. putExtra (Intent. EXTRA_SUBJECT, "The email subject text ");
Intent. setType ("message/rfc822 ");
StartActivity (Intent. createChooser (intent, "Choose Email Client "));

 

13 Intent. ACTION_GET_CONTENT

 

// Select the ID returned by the image requestCode
Intent intent = new Intent (Intent. ACTION_GET_CONTENT); // "android. intent. action. GET_CONTENT"
Intent. setType (contentType); // view type String IMAGE_UNSPECIFIED = "image /*";
Intent wrapperIntent = Intent. createChooser (intent, null );
(Activity) context). startActivityForResult (wrapperIntent, requestCode );

// Add audio
Intent intent = new Intent (Intent. ACTION_GET_CONTENT );
Intent. setType (contentType); // String VIDEO_UNSPECIFIED = "video /*";
Intent wrapperIntent = Intent. createChooser (intent, null );
(Activity) context). startActivityForResult (wrapperIntent, requestCode );

// Video shooting
Int durationLimit = getVideoCaptureDurationLimit (); // SystemProperties. getInt ("ro. media. enc. lprof. duration", 60 );
Intent intent = new Intent (MediaStore. ACTION_VIDEO_CAPTURE );
Intent. putExtra (MediaStore. EXTRA_VIDEO_QUALITY, 0 );
Intent. putExtra (MediaStore. EXTRA_SIZE_LIMIT, sizeLimit );
Intent. putExtra (MediaStore. EXTRA_DURATION_LIMIT, durationLimit );
StartActivityForResult (intent, REQUEST_CODE_TAKE_VIDEO );

 

// Video
Intent intent = new Intent (Intent. ACTION_GET_CONTENT );
Intent. setType (contentType); // String VIDEO_UNSPECIFIED = "video /*";
Intent wrapperIntent = Intent. createChooser (intent, null );
(Activity) context). startActivityForResult (wrapperIntent, requestCode );

// Recording
Intent intent = new Intent (Intent. ACTION_GET_CONTENT );
Intent. setType (ContentType. AUDIO_AMR); // String AUDIO_AMR = "audio/amr ";
Intent. setClassName ("com. android. soundrecorder ",
"Com. android. soundrecorder. SoundRecorder ");
(Activity) context). startActivityForResult (intent, requestCode );

// Photograph REQUEST_CODE_TAKE_PICTURE as the returned identifier
Intent intent = new Intent (MediaStore. ACTION_IMAGE_CAPTURE); // "android. media. action. IMAGE_CAPTURE ";
Intent. putExtra (MediaStore. EXTRA_OUTPUT, Mms. ScrapSpace. CONTENT_URI); // output, Uri. parse ("content: // mms/scrapSpace ");
StartActivityForResult (intent, REQUEST_CODE_TAKE_PICTURE );

 

Complete. Pai_^