Intent调用常见系统组件

 // 调用浏览器
 Uri webViewUri = Uri.parse("http://blog.csdn.net/zuolongsnail");
 Intent intent = new Intent(Intent.ACTION_VIEW, webViewUri);  

 // 调用地图
 Uri mapUri = Uri.parse("geo:100,100");
 Intent intent = new Intent(Intent.ACTION_VIEW, mapUri);  

 // 播放mp3
 Uri playUri = Uri.parse("file:///sdcard/test.mp3");
 Intent intent = new Intent(Intent.ACTION_VIEW, playUri);
 intent.setDataAndType(playUri, "audio/mp3");  

 // 调用拨打电话
 Uri dialUri = Uri.parse("tel:10086");
 Intent intent = new Intent(Intent.ACTION_DIAL, dialUri);
 // 直接拨打电话，需要加上权限<uses-permission id="android.permission.CALL_PHONE" />
 Uri callUri = Uri.parse("tel:10086");
 Intent intent = new Intent(Intent.ACTION_CALL, callUri);  

 // 调用发邮件（这里要事先配置好的系统Email，否则是调不出发邮件界面的）
 Uri emailUri = Uri.parse("mailto:zuolongsnail@163.com");
 Intent intent = new Intent(Intent.ACTION_SENDTO, emailUri);
 // 直接发邮件
 Intent intent = new Intent(Intent.ACTION_SEND);
 String[] tos = { "zuolongsnail@gmail.com" };
 String[] ccs = { "zuolongsnail@163.com" };
 intent.putExtra(Intent.EXTRA_EMAIL, tos);
 intent.putExtra(Intent.EXTRA_CC, ccs);
 intent.putExtra(Intent.EXTRA_TEXT, "the email text");
 intent.putExtra(Intent.EXTRA_SUBJECT, "subject");
 intent.setType("text/plain");
 Intent.createChooser(intent, "Choose Email Client");  

 // 发短信
 Intent intent = new Intent(Intent.ACTION_VIEW);
 intent.putExtra("sms_body", "the sms text");
 intent.setType("vnd.android-dir/mms-sms");
 // 直接发短信
 Uri smsToUri = Uri.parse("smsto:10086");
 Intent intent = new Intent(Intent.ACTION_SENDTO, smsToUri);
 intent.putExtra("sms_body", "the sms text");
 // 发彩信
 Uri mmsUri = Uri.parse("content://media/external/images/media/23");
 Intent intent = new Intent(Intent.ACTION_SEND);
 intent.putExtra("sms_body", "the sms text");
 intent.putExtra(Intent.EXTRA_STREAM, mmsUri);
 intent.setType("image/png");  

 // 卸载应用
 Uri uninstallUri = Uri.fromParts("package", "com.app.test", null);
 Intent intent = new Intent(Intent.ACTION_DELETE, uninstallUri);
 // 安装应用
 Intent intent = new Intent(Intent.ACTION_VIEW);
 intent.setDataAndType(Uri.fromFile(new File("/sdcard/test.apk"), "application/vnd.android.package-archive");  

 // 在Android Market中查找应用
 Uri uri = Uri.parse("market://search?q=愤怒的小鸟");
 Intent intent = new Intent(Intent.ACTION_VIEW, uri);