Activity details Intent explicit jump and implicit jump

Activity Life Cycle explicit Intent call 1 // create an explicit Intent object (Method 1: specified in the constructor) 2 Intent intent Intent = new Intent (Intent_Demo1.this, Intent_Demo1_Result1.class ); 3 4 Bundle bundle = new Bundle (); 5 bundle. putString ("id", strID); 6 intent. putExtras (bundle); 7 8 intent. putExtra ("name", "bbb"); 9 intent. putExtra ("userInfo", new UserInfo (1, "name"); 10 startActivity (intent); 11 12 // create an explicit Intent object (Method 2: use the setClass method) 13 Int Ent intent = new Intent (); 14 Bundle bundle = new Bundle (); 15 bundle. putString ("id", strID); 16 intent. setClass (Intent_Demo1.this, Intent_Demo1_Result1.class); 17 intent. putExtras (bundle); 18 startActivity (intent); 19 20 // create an explicit Intent object (method 3: Use the setClass method) 21 Intent intent = new Intent (); 22 Bundle bundle = new Bundle (); 23 bundle. putString ("id", strID); 24 intent. setClassName (Intent_Demo1.this, "com. gr Eat. activity_intent.intent_demow.result1 "); 25 intent. putExtras (bundle); 26 startActivity (intent); 27 28 // create an explicit Intent object (Method 4: Use the setComponent method) 29 Intent intent = new Intent (); 30 Bundle bundle = new Bundle (); 31 bundle. putString ("id", strID); 32 // parameter of the setComponent method: ComponentName33 intent. setComponent (new ComponentName (Intent_Demo1.this, Intent_Demo1_Result1.class); 34 intent. putExtras (bundle); 35 sta RtActivity (intent); Intent implicitly redirects to Action 1 // create an implicit Intent object: Action 2/*** here AndroidManifest is specified. <action android: name = "com. great. activity_intent.intent_demow.result3 "/> 5 *. Note that you must set <category android: name =" android. intent. category. DEFAULT "/> 6 */7 Intent intent = new Intent (); 8 // set Intent action 9 intent. setAction ("com. great. activity_intent.Int Ent_demow.result3 "); 10 Bundle bundle = new Bundle (); 11 bundle. putString ("id", strID); 12 intent. putExtras (bundle); 13 startActivity (intent); AndroidManifest. xml 1 <activity android: name = "intent_demow.result3" 2 android: label = "intent_demow.result3"> 3 <intent-filter> 4 <action android: name = "com. great. activity_intent.intent_demow.result3 "/> 5 <category android: name =" android. intent. category. DEFAULT "/> 6 </Intent-filter> 7 </activity> Category 1 // create an implicit Intent object: Category 2 Intent intent = new Intent (); 3 intent. setAction ("com. great. activity_intent.intent_demow.result33 "); 4/** 5 * does not specify Category or only AndroidManifest. any Category 6 * <category android: name = "android. intent. category. except for DEFAULT "/>, you can access the Activity, which is 7 */8 intent. addCategory (Intent. CATEGORY_INFO ); 9 intent. addCategory (Intent. CATEGORY_DEFAULT); 10 Bundle bundle = new Bundle (); 11 bundle. putString ("id", strID); 12 intent. putExtras (bundle); 13 startActivity (intent); AndroidManifest. xml <activity android: name = "intent_demow.result2" android: label = "intent_demow.result2"> <intent-filter> <category android: name = "android. intent. category. INFO "/> <category android: name =" android. intent. category. BROWSABLE" /> <Category android: name = "android. intent. category. DEFAULT "/> </intent-filter> </activity> Date data jump 1 // create an implicit Intent object. Method 4: date data 2 Intent intent = new Intent (); 3 Uri uri = Uri. parse ("http://www.great.org: 8080/folder/subfolder/etc/abc.pdf"); 4 5 // Note: setData, setDataAndType, setType can only be used separately, you cannot share 6 // or set URI 7 using the setData method. // intent. setData (uri); 8 // either set the URI and mime separately using the setDataAndType Method Type 9 intent. setDataAndType (uri, "text/plain"); 10 // either set Type11 // intent separately using the setDataAndType method. setType ("text/plain"); 12 13/** 14 * do not specify Category or only specify AndroidManifest. any Category15 * <category android: name = "android. intent. category. except for DEFAULT "/>, you can access the Activity16 */17 Bundle bundle = new Bundle (); 18 bundle. putString ("id", strID); 19 intent. putExtras (bundle); 20 startAc Tibench (intent); AndroidManifest. xml 1 <activity android: name = "intent_demow.result2" 2 android: label = "intent_demow.result2"> 3 <intent-filter> 4 <category android: name = "android. intent. category. DEFAULT "/> 5 <data 6 android: scheme =" http "7 android: host =" www.great.org "8 android: port =" 8080 "9 android: pathPattern = ". * pdf "10 android: mimeType =" text/plain "/> 11 </intent-filter> 12 </activity> 13 call system components/w Eb browser Uri uri = Uri. parse ("http://www.baidu.com: 8080/image/a.jpg"); Intent intent = new Intent (Intent. ACTION_VIEW, uri); startActivity (intent); // map (to be tested on the Android phone) Uri uri = Uri. parse ("geo: 38.899533,-77.036476"); Intent intent = new Intent (Intent. ACTION_VIEW, uri); startActivity (intent); // URL planning Uri uri = Uri. parse ("http://maps.google.com/maps? F = d & saddr = startLat % 20 startLng & daddr = endLat % 20 endLng & hl = en "); Intent it = new Intent (Intent. ACTION_VIEW, uri); startActivity (it); // call the dialing program Uri = uri. parse ("tel: 15980665805"); Intent intent = new Intent (Intent. ACTION_DIAL, uri); startActivity (intent); // call-call directly. // to use this function, you must add <uses-permission android: name = "android. permission. CALL_PHONE "/> Uri uri = Uri. parse ("tel: 15980665805"); Intent Intent = new Intent (Intent. ACTION_CALL, uri); startActivity (intent); // call the SMS sending program (method 1) Uri uri = Uri. parse ("Maid: 15980665805"); Intent intent = new Intent (Intent. ACTION_SENDTO, uri); intent. putExtra ("sms_body", "The SMS text"); startActivity (intent); // call The SMS sending program (method 2) Intent intent = new Intent (Intent. ACTION_VIEW); intent. putExtra ("sms_body", "The SMS text"); intent. setType ("vnd. android-dir/mms-sms "); StartActivity (intent); // send MMS Uri uri = Uri. parse ("content: // media/external/images/media/23"); Intent intent = new Intent (Intent. ACTION_SEND); intent. putExtra ("sms_body", "some text"); intent. putExtra (Intent. EXTRA_STREAM, uri); intent. setType ("image/png"); startActivity (intent); // send Email (method 1) (test only on Android phone) Uri uri Uri = Uri. parse ("mailto: zhangsan@gmail.com"); Intent intent = new Intent (Intent. ACTION_SENDTO, uri); startActivity (intent); // send Email (method 2) (test only on Android mobile phone) Intent intent = new Intent (Intent. ACTION_SENDTO); intent. setData (Uri. parse ("mailto: zhangsan@gmail.com"); intent. putExtra (Intent. EXTRA_SUBJECT, "this is the title"); intent. putExtra (Intent. EXTRA_TEXT, "this is the content"); startActivity (intent); // send Email (method 3) (test only on Android phone) Intent intent = new Intent (Intent. ACTION_SEND); intent. putExtra (I Ntent. EXTRA_EMAIL, "me@abc.com"); intent. putExtra (Intent. EXTRA_SUBJECT, "this is the title"); intent. putExtra (Intent. EXTRA_TEXT, "this is the content"); intent. setType ("text/plain"); // select an email client startActivity (Intent. createChooser (intent, "Choose Email Client"); // send an Email (Method 4) (test only on Android phones) Intent intent = new Intent (Intent. ACTION_SEND); // recipient String [] tos = {"to1@abc.com", "to2@abc.com"}; // CC to String [] ccs = {"C0 @ AB C.com "," cc2@abc.com "}; // bcc String [] bcc = {" bcc1@abc.com "," bcc2@abc.com "}; intent. putExtra (Intent. EXTRA_EMAIL, tos); intent. putExtra (Intent. EXTRA_CC, ccs); intent. putExtra (Intent. EXTRA_BCC, bcc); intent. putExtra (Intent. EXTRA_SUBJECT, "this is the title"); intent. putExtra (Intent. EXTRA_TEXT, "this is the content"); intent. setType ("message/rfc822"); startActivity (Intent. createChooser (intent, "Choose Email Client"); // send Ema Il and send the attachment (to be tested on the Android phone) Intent intent = new Intent (Intent. ACTION_SEND); intent. putExtra (Intent. EXTRA_SUBJECT, "The email subject text"); intent. putExtra (Intent. EXTRA_STREAM, "file: // sdcard/mp3/intoxicating"); intent. setType ("audio/mp3"); startActivity (Intent. createChooser (intent, "Choose Email Client"); // play media files (android does not support files with Chinese names) Intent intent = new Intent (Intent. ACTION_VIEW); // Uri uri = Uri. Parse ("file: // sdcard/zhybriddb"); Uri uri = Uri. parse ("file: // sdcard/a.mp3"); intent. setDataAndType (uri, "audio/mp3"); startActivity (intent); Uri uri = Uri. withAppendedPath (MediaStore. audio. media. INTERNAL_CONTENT_URI, "1"); Intent intent = new Intent (Intent. ACTION_VIEW, uri); startActivity (intent); // music selector // It uses Intent. ACTION_GET_CONTENT and MIME types are used to search for all Data pickers that support audio/*. You can select one of the Intent int types. Ent = new Intent (Intent. ACTION_GET_CONTENT); intent. setType ("audio/*"); // Intent. createChooser: Application selector. This method creates an ACTION_CHOOSER Intent startActivity (Intent. createChooser (intent, "Select music"); Intent intent1 = new Intent (Intent. ACTION_GET_CONTENT); intent1.setType ("audio/*"); Intent intent2 = new Intent (Intent. ACTION_CHOOSER); intent2.putExtra (Intent. EXTRA_INTENT, intent1); intent2.putExtra (Intent. EXTRA_T ITLE, "aaaa"); startActivity (intent2); // set wallpaper // Intent intent = new Intent (Intent. ACTION_SET_WALLPAPER); // startActivity (Intent. createChooser (intent, "set Wallpaper"); // uninstall APK // fromParts method // parameter 1: URI's scheme // parameter 2: Package path // parameter 3: uri uri = Uri. fromParts ("package", "com. great. activity_intent ", null); Intent intent = new Intent (Intent. ACTION_DELETE, uri); startActivity (intent); // install APK (???) Uri uri = Uri. fromParts ("package", "com. great. activity_intent ", null); Intent intent = new Intent (Intent. ACTION_PACKAGE_ADDED, uri); startActivity (intent); // call Search Intent intent = new Intent (); intent. setAction (Intent. ACTION_WEB_SEARCH); intent. putExtra (SearchManager. QUERY, "android"); startActivity (intent );