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:

Uri uri =
Uri.parse("http://www.google.com");

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

startActivity(it);

显示地图:

Uri uri =
Uri.parse("geo:38.899533,-77.036476");

Intent it =
new Intent(Intent.Action_VIEW,uri);

startActivity(it);

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);

拨打电话:

调用拨号程序

Uri uri =
Uri.parse("tel:xxxxxx");

Intent it =
new Intent(Intent.ACTION_DIAL, uri);

startActivity(it);

Uri uri =
Uri.parse("tel.xxxxxx");

Intent it
=new Intent(Intent.ACTION_CALL,uri);

要使用这个必须在配置文件中加入<uses-permission id="android.permission.CALL_PHONE"
/>

发送SMS/MMS

调用发送短信的程序

Intent it =
new Intent(Intent.ACTION_VIEW);

it.putExtra("sms_body",
"The SMS text");

it.setType("vnd.android-dir/mms-sms");

startActivity(it);

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);

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);

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"));

添加附件

Intent it =
new Intent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_SUBJECT,
"The email subject text");

it.putExtra(Intent.EXTRA_STREAM,
"file:///sdcard/mysong.mp3");

sendIntent.setType("audio/mp3");

startActivity(Intent.createChooser(it,
"Choose Email Client"));

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);

Uninstall

程序

Uri uri =
Uri.fromParts("package", strPackageName, null);

Intent it =
new Intent(Intent.ACTION_DELETE, uri);

startActivity(it);