Android中Intent的用法总结

刚入手Android，昨天在看android书籍的时候，看到Intent有个Intent.putExtras(Bundle b)的方法，然后在Eclipse中智能输入时有Intent.putExtra(X,Y)相关的很多方法putExtras不知道是不是putExtra的复数形式？
Intent只在Android中特有，我把它比作一种运载工具，就像飞机一样，会把一些人带到某个地方，而且如果需要的话，还可以找到机上有哪些人员（数据），这就需要另外一些设备来支持（如：Bundle），最后通过引擎（Context的 Activity）来启动。

以下是从网上摘来的：前人已有整理，就方便了我们这些后辈了。
1.显示网页:

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

2.显示地图:

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

3.从google搜索内容

Intent intent = new Intent();intent.setAction(Intent.ACTION_WEB_SEARCH);intent.putExtra(SearchManager.QUERY,"searchString")startActivity(intent);

4.路径规划

Uri uri = Uri.parse("http://maps.google.com/maps?f=dsaddr=startLat%20startLng&daddr=endLat%20endLng&hl=en"); Intent it = new Intent(Intent.ACTION_VIEW,URI); startActivity(it);

5.拨打电话

Uri uri = Uri.parse("tel:xxxxxx");Intent it = new Intent(Intent.ACTION_DIAL, uri);  startActivity(it); [color=blue]//要使用这个必须在配置文件 中加入<uses-permission id="android .permission.CALL_PHONE" />[/color]

6.调用发短信的程序

Intent it = new Intent(Intent.ACTION_VIEW);   it.putExtra("sms_body", "The SMS text");   it.setType("vnd.android-dir/mms-sms");   startActivity(it);

7.发送短信

Uri uri = Uri.parse("smsto:0800000123");    Intent it = new Intent(Intent.ACTION_SENDTO, uri);    it.putExtra("sms_body", "The SMS text");    startActivity(it);

8.发送彩信

Uri uri = Uri.parse("content://media/external/images/media/23");    Intent it = new Intent(Intent.ACTION_SEND);    it.putExtra("sms_body", "some text");    it.putExtra(Intent.EXTRA_STREAM, uri);    it.setType("image/png");    startActivity(it);

9.发送Email

Uri uri = Uri.parse("mailto:xxx@abc.com");Intent it = new Intent(Intent.ACTION_SENDTO, uri);startActivity(it);Intent it = new Intent(Intent.ACTION_SEND);   it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");   it.putExtra(Intent.EXTRA_TEXT, "The email body text");   it.setType("text/plain");   startActivity(Intent.createChooser(it, "Choose Email Client"));  Intent it=new Intent(Intent.ACTION_SEND);     String[] tos={"me@abc.com"};     String[] ccs={"you@abc.com"};     it.putExtra(Intent.EXTRA_EMAIL, tos);     it.putExtra(Intent.EXTRA_CC, ccs);     it.putExtra(Intent.EXTRA_TEXT, "The email body text");     it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");     it.setType("message/rfc822");     startActivity(Intent.createChooser(it, "Choose Email Client"));    Intent it = new Intent(Intent.ACTION_SEND);   it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");   it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");   sendIntent.setType("audio/mp3");   startActivity(Intent.createChooser(it, "Choose Email Client"));

10.播放多媒体

Intent it = new Intent(Intent.ACTION_VIEW);Uri uri = Uri.parse("file:///sdcard/song.mp3");it.setDataAndType(uri, "audio/mp3");startActivity(it);Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");   Intent it = new Intent(Intent.ACTION_VIEW, uri);   startActivity(it);

11.install apk

Uri installUri = Uri.fromParts("package", "xxx", null);returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);

12.uninstall apk

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

13.发送附件

Intent it = new Intent(Intent.ACTION_SEND);   it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");   it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3");   sendIntent.setType("audio/mp3");   startActivity(Intent.createChooser(it, "Choose Email Client"));

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