Android中Intent的使用

1./以下是常用到的Intent的URI及其示例，包含了大部分应用中用到的共用Intent。
//一、打开一个网页，类别是Intent.ACTION_VIEW
Uri uri = Uri.parse(“http://blog.3gstdy.com/”);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);

//二、打开地图并定位到一个点
Uri uri = Uri.parse(“geo:52.76,-79.0342″);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);

//三、打开拨号界面 ,类型是Intent.ACTION_DIAL
Uri uri = Uri.parse(“tel:10086″);
Intent intent = new Intent(Intent.ACTION_DIAL, uri);

//四、直接拨打电话,与三不同的是，这个直接拨打电话，而不是打开拨号界面
Uri uri = Uri.parse(“tel:10086″);
Intent intent = new Intent(Intent.ACTION_CALL, uri);

//五、卸载一个应用，Intent的类别是Intent.ACTION_DELETE
Uri uri = Uri.fromParts(“package”, “xxx”, null);
Intent intent = new Intent(Intent.ACTION_DELETE, uri);

//六、安装应用程序,Intent的类别是Intent.ACTION_PACKAGE_ADDED

Uri uri = Uri.fromParts(“package”, “xxx”, null);
Intent intent = new Intent(Intent.ACTION_PACKAGE_ADDED, uri);

//七、播放音频文件
Uri uri = Uri.parse(“file:///sdcard/download/everything.mp3″);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.setType(“audio/mp3″);

//八、打开发邮件界面
Uri uri= Uri.parse(“mailto:[e-mail]”);

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

//九、发邮件,与八不同这里是将邮件发送出去，
Intent intent = new Intent(Intent.ACTION_SEND);

String[] tos = { “[e-mail]” };
String[] ccs = { “[e-mail]” };
intent.putExtra(Intent.EXTRA_EMAIL, tos);
intent.putExtra(Intent.EXTRA_CC, ccs);
intent.putExtra(Intent.EXTRA_TEXT, “I come from http://blog.3gstdy.com”);
intent.putExtra(Intent.EXTRA_SUBJECT, “http://blog.3gstdy.com”);intent.setType(“message/rfc882″);
Intent.createChooser(intent, “Choose Email Client”);

//发送带附件的邮件
Intent intent = new Intent(Intent.ACTION_SEND);
intent.putExtra(Intent.EXTRA_SUBJECT, “The email subject text”);
intent.putExtra(Intent.EXTRA_STREAM, “file:///sdcard/mysong.mp3″);
intent.setType(“audio/mp3″);
startActivity(Intent.createChooser(intent, “Choose Email Client”));

//十、发短信
Uri uri= Uri.parse(“tel:10086″);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
intent.putExtra(“sms_body”, “I come from http://blog.3gstdy.com”);
intent.setType(“vnd.Android-dir/mms-sms”);

//十一、直接发邮件
Uri uri= Uri.parse(“smsto://100861″);
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);

intent.putExtra(“sms_body”, “3g android http://blog.3gstdy.com”);

//十二、发彩信

Uri uri= Uri.parse(“content://media/external/images/media/23″);
Intent intent = new Intent(Intent.ACTION_SEND);
intent.putExtra(“sms_body”, “3g android http://blog.3gstdy.com”);
intent.putExtra(Intent.EXTRA_STREAM, uri);
intent.setType(“image/png”);

//十三、# Market 相关

//1 //寻找某个应用
Uri uri = Uri.parse(“market://search?q=pname:pkg_name”);
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);

//2 //显示某个应用的相关信息
Uri uri = Uri.parse(“market://details?id=app_id”);
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);

//十四、路径规划
Uri uri = Uri.parse(“http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en”);
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);