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<uses-permission id="android.permission.CALL_PHONE" />

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

1.   
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);