Android Intent的几种用法全面总结

Intent应该算是Android中特有的东西。你可以在Intent中指定程序要执行的动作（比如：view,edit,dial），以及程序执行到该动作时所需要的资料。都指定好后，只要调用startActivity()，Android系统会自动寻找最符合你指定要求的应用程序，并执行该程序。

下面列出几种Intent的用法
显示网页:

1. Uri uri = Uri.parse("http://www.google.com");
2. Intent it  = new Intent(Intent.ACTION_VIEW,uri);
3. startActivity(it);

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显示地图:

1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
2. Intent it = new Intent(Intent.Action_VIEW,uri);
3. startActivity(it);

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路径规划:

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);

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拨打电话:
调用拨号程序

1. Uri uri = Uri.parse("tel:xxxxxx");
2. Intent it = new Intent(Intent.ACTION_DIAL, uri);  
3. startActivity(it);  

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1. Uri uri = Uri.parse("tel.xxxxxx");
2. Intent it =new Intent(Intent.ACTION_CALL,uri);
3. 要使用这个必须在配置文件中加入<uses-permission id="android.permission.CALL_PHONE" />

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发送SMS/MMS
调用发送短信的程序

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);  

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发送短信

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);  

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发送彩信

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);

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发送Email

1. 
   
2. Uri uri = Uri.parse("mailto:xxx@abc.com");
3. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
4. startActivity(it);

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1. 
   
2. Intent it = new Intent(Intent.ACTION_SEND);   
3. it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");   
4. it.putExtra(Intent.EXTRA_TEXT, "The email body text");   
5. it.setType("text/plain");   
6. startActivity(Intent.createChooser(it, "Choose Email Client"));  

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1. 
   
2. Intent it=new Intent(Intent.ACTION_SEND);     
3. String[] tos={"me@abc.com"};     
4. String[] ccs={"you@abc.com"};     
5. it.putExtra(Intent.EXTRA_EMAIL, tos);     
6. it.putExtra(Intent.EXTRA_CC, ccs);     
7. it.putExtra(Intent.EXTRA_TEXT, "The email body text");     
8. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");     
9. it.setType("message/rfc822");     
10. startActivity(Intent.createChooser(it, "Choose Email Client"));   

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添加附件

1. 
   
2. Intent it = new Intent(Intent.ACTION_SEND);   
3. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");   
4. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");   
5. sendIntent.setType("audio/mp3");   
6. startActivity(Intent.createChooser(it, "Choose Email Client"));

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播放多媒体

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);

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1. 
   
2. Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");   
3. Intent it = new Intent(Intent.ACTION_VIEW, uri);   
4. startActivity(it);  

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Uninstall 程序

1. Uri uri = Uri.fromParts("package", strPackageName, null);   
2. Intent it = new Intent(Intent.ACTION_DELETE, uri);   
3. startActivity(it);

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顯示地圖與導航intent用法

顯示地圖現成的Intent用法程式碼如下:
Uri uri = Uri.parse("geo:緯度,經度");

Intent intent = new Intent(Intent.ACTION_VIEW, uri);

startActivity(intent);

顯示導航現成的Intent用法程式碼如下:
Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=起點位置&daddr=終點位置&hl=tw");

路徑格式:
f=d&saddr=起點位置&daddr=終點位置&hl=tw
起點位置格式:Latitude,Longitude
終點位置格式:Latitude,Longitude
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);

備註:記得要加入internet的使用權限

String vDirectionUrl = "https://maps.google.com/maps?f=d"
                     + "&saddr=" + 來源Latitude + "," + 來源Longitude
                     + "&daddr=" + 目的Latitude + "," + 目的Longitude
                     + "&hl=tw";

// 在 Google 地圖 App 顯示導航
Intent intent = new Intent( Intent.ACTION_VIEW, Uri.parse(vDirectionUrl) );
intent.setClassName("com.google.android.apps.maps", "com.google.android.maps.MapsActivity");
startActivity(intent);

Android

String strURL = "http://maps.google.com/maps?f=d&saddr=&daddr=&hl=;
/* 
   f=d：使用Google Map 導航功能
   saddr：傳入 開始位置(預設為目前位置)
   daddr：傳入 目的位置
   hl：指定語系 (Locale.getDefault().getCountry())
*/
Intent intent = new Intent();  
intent.setAction(android.content.Intent.ACTION_VIEW); 
intent.setData 
( 
    Uri.parse(strURL )
); 
startActivity(intent); 

iOS

    MKUserLocation *userLoc = self.myMapView.userLocation;
    NSString *destlatlong = [NSString stringWithFormat:@"%f,%f",
                             userLoc.location.coordinate.latitude,
                             userLoc.location.coordinate.longitude];
         
    NSString *url = [NSString stringWithFormat: @"http://maps.google.com/maps?f=d&saddr=%@&daddr=%@&z=12",
                     destlatlong,[strLoc stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];