Android Intent的幾種用法全面總結

Intent應該算是Android中特有的東西。你可以在Intent中指定程式要執行的動作（比如：view,edit,dial），以及程式執行到該動作時所需要的資料。都指定好後，只要調用startActivity()，Android系統會自動尋找最符合你指定要求的應用程式，並執行該程式。

下面列出幾種Intent的用法
顯示網頁:

1. Uri uri = Uri.parse("http://www.google.com");
2. Intent it = new Intent(Intent.ACTION_VIEW,uri);
3. startActivity(it);顯示地圖:
   1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
   2. Intent it = new Intent(Intent.Action_VIEW,uri);
   3. startActivity(it);路徑規劃:
      1. Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
      2. Intent it = new Intent(Intent.ACTION_VIEW,URI);
      3. startActivity(it);撥打到電話:
         調用撥號程式
         1. Uri uri = Uri.parse("tel:xxxxxx");
         2. Intent it = new Intent(Intent.ACTION_DIAL, uri);
         3. startActivity(it);
            1. Uri uri = Uri.parse("tel.xxxxxx");
            2. Intent it =new Intent(Intent.ACTION_CALL,uri);
            3. 要使用這個必須在設定檔中加入發送SMS/MMS
               調用傳送簡訊的程式
               1. Intent it = new Intent(Intent.ACTION_VIEW);
               2. it.putExtra("sms_body", "The SMS text");
               3. it.setType("vnd.android-dir/mms-sms");
               4. startActivity(it); 傳送簡訊
                  1. Uri uri = Uri.parse("smsto:0800000123");
                  2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
                  3. it.putExtra("sms_body", "The SMS text");
                  4. startActivity(it); 發送多媒體訊息
                     1. Uri uri = Uri.parse("content://media/external/images/media/23");
                     2. Intent it = new Intent(Intent.ACTION_SEND);
                     3. it.putExtra("sms_body", "some text");
                     4. it.putExtra(Intent.EXTRA_STREAM, uri);
                     5. it.setType("image/png");
                     6. startActivity(it);發送Email
                        2. Uri uri = Uri.parse("mailto:xxx@abc.com");
                        3. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
                        4. startActivity(it);
                           1. Intent it = new Intent(Intent.ACTION_SEND);
                           2. it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");
                           3. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
                           4. it.setType("text/plain");
                           5. startActivity(Intent.createChooser(it, "Choose Email Client"));
                              1. Intent it=new Intent(Intent.ACTION_SEND);
                              2. String[] tos={"me@abc.com"};
                              3. String[] ccs={"you@abc.com"};
                              4. it.putExtra(Intent.EXTRA_EMAIL, tos);
                              5. it.putExtra(Intent.EXTRA_CC, ccs);
                              6. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
                              7. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
                              8. it.setType("message/rfc822");
                              9. startActivity(Intent.createChooser(it, "Choose Email Client")); 添加附件
                                 1. Intent it = new Intent(Intent.ACTION_SEND);
                                 2. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
                                 3. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");
                                 4. sendIntent.setType("audio/mp3");
                                 5. startActivity(Intent.createChooser(it, "Choose Email Client"));播放多媒體
                                    2. Intent it = new Intent(Intent.ACTION_VIEW);
                                    3. Uri uri = Uri.parse("file:///sdcard/song.mp3");
                                    4. it.setDataAndType(uri, "audio/mp3");
                                    5. startActivity(it);
                                       1. Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");
                                       2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
                                       3. startActivity(it); Uninstall 程式
                                          1. Uri uri = Uri.fromParts("package", strPackageName, null);
                                          2. Intent it = new Intent(Intent.ACTION_DELETE, uri);
                                          3. startActivity(it);