Android系统调用之Intent

android通过程序打开mp3播放器播放音乐

1. Intentit=newIntent(Intent.ACTION_VIEW);
3. Uriuri=Uri.parse("file:///sdcard/song.mp3");
5. it.setDataAndType(uri,"audio/mp3");
7. startActivity(it);

1. Uriuri=Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI,"1");
3. Intentit=newIntent(Intent.ACTION_VIEW,uri);
5. startActivity(it);

Uninstall 程序 :

1. Uriuri=Uri.fromParts("package",strPackageName,null);
3. Intentit=newIntent(Intent.ACTION_DELETE,uri);
5. startActivity(it);

发送彩信

1. Uriuri=Uri.parse("content://media/external/images/media/23");
3. Intentit=newIntent(Intent.ACTION_SEND);
5. it.putExtra("sms_body","sometext");
7. it.putExtra(Intent.EXTRA_STREAM,uri);
9. it.setType("image/png");
11. startActivity(it);

发送SMS/MMS
调用发送短信的程序

1. Intentit=newIntent(Intent.ACTION_VIEW);
3. it.putExtra("sms_body","TheSMStext");
5. it.setType("vnd.android-dir/mms-sms");
7. startActivity(it);

发送短信

1. Uriuri=Uri.parse("smsto:0800000123");
3. Intentit=newIntent(Intent.ACTION_SENDTO,uri);
5. it.putExtra("sms_body","TheSMStext");
7. startActivity(it);

拨打电话:
调用拨号程序

1. Uriuri=Uri.parse("tel:xxxxxx");
3. Intentit=newIntent(Intent.ACTION_DIAL,uri);
5. startActivity(it);
8. Uriuri=Uri.parse("tel.xxxxxx");
10. Intentit=newIntent(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" />

显示网页:

1. Uriuri=Uri.parse("http://www.google.com");
3. Intentit=newIntent(Intent.ACTION_VIEW,uri);
5. startActivity(it);

显示地图:

1. Uriuri=Uri.parse("geo:38.899533,-77.036476");
3. Intentit=newIntent(Intent.Action_VIEW,uri);
5. startActivity(it);

路径规划:

1. Uriuri=Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
3. Intentit=newIntent(Intent.ACTION_VIEW,URI);
5. startActivity(it);