Intent, 用 法
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:
  1. Uri uri = Uri.parse("http://www.google.com");
  2. Intent it= new Intent(Intent.ACTION_VIEW,uri);
  3. startActivity(it);
复制代码 显示地图:
  1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
  2. Intent it = new Intent(Intent.Action_VIEW,uri);
  3. startActivity(it);
复制代码 路径规划:
  1. Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
  2. Intent it = new Intent(Intent.ACTION_VIEW,URI);
  3. startActivity(it);
复制代码 拨打电话:
调用拨号程序
  1. Uri uri = Uri.parse("tel:xxxxxx");
  2. Intent it = new Intent(Intent.ACTION_DIAL, uri);
  3. startActivity(it);
复制代码
  1. Uri uri = Uri.parse("tel.xxxxxx");
  2. Intent it =new Intent(Intent.ACTION_CALL,uri);
  3. 要使用这个必须在配置文件中加入<uses-permission id="android.permission.CALL_PHONE" />
复制代码 发送SMS/MMS
调用发送短信的程序
  1. Intent it = new Intent(Intent.ACTION_VIEW);
  2. it.putExtra("sms_body", "The SMS text");
  3. it.setType("vnd.android-dir/mms-sms");
  4. startActivity(it);
复制代码 发送短信
  1. Uri uri = Uri.parse("smsto:0800000123");
  2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
  3. it.putExtra("sms_body", "The SMS text");
  4. startActivity(it);
复制代码 发送彩信
  1. Uri uri = Uri.parse("content://media/external/images/media/23");
  2. Intent it = new Intent(Intent.ACTION_SEND);
  3. it.putExtra("sms_body", "some text");
  4. it.putExtra(Intent.EXTRA_STREAM, uri);
  5. it.setType("image/png");
  6. startActivity(it);
复制代码 发送Email

  1. Uri uri = Uri.parse("mailto:[email protected]");
  2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
  3. startActivity(it);
复制代码
  1. Intent it = new Intent(Intent.ACTION_SEND);
  2. it.putExtra(Intent.EXTRA_EMAIL, "[email protected]");
  3. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
  4. it.setType("text/plain");
  5. startActivity(Intent.createChooser(it, "Choose Email Client"));
复制代码
  1. Intent it=new Intent(Intent.ACTION_SEND);
  2. String[] tos={"[email protected]"};
  3. String[] ccs={"[email protected]"};
  4. it.putExtra(Intent.EXTRA_EMAIL, tos);
  5. it.putExtra(Intent.EXTRA_CC, ccs);
  6. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
  7. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
  8. it.setType("message/rfc822");
  9. startActivity(Intent.createChooser(it, "Choose Email Client"));
复制代码 添加附件
  1. Intent it = new Intent(Intent.ACTION_SEND);
  2. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
  3. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");
  4. sendIntent.setType("audio/mp3");
  5. startActivity(Intent.createChooser(it, "Choose Email Client"));
复制代码 播放多媒体
  1. Intent it = new Intent(Intent.ACTION_VIEW);
  2. Uri uri = Uri.parse("file:///sdcard/song.mp3");
  3. it.setDataAndType(uri, "audio/mp3");
  4. startActivity(it);
复制代码
  1. Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");
  2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
  3. startActivity(it);
复制代码 Uninstall 程序
  1. Uri uri = Uri.fromParts("package", strPackageName, null);
  2. Intent it = new Intent(Intent.ACTION_DELETE, uri);
  3. startActivity(it);
复制代码

uninstall apk

  1. Uri uninstallUri = Uri.fromParts("package", "xxx", null);

  2. returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);
复制代码


install apk

  1. Uri installUri = Uri.fromParts("package", "xxx", null);

  2. returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
复制代码



play audio

  1. Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");

  2. returnIt = new Intent(Intent.ACTION_VIEW, playUri);
复制代码
  1. //发送附件
  2. Intent it = new Intent(Intent.ACTION_SEND);
  3. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
  4. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3");
  5. sendIntent.setType("audio/mp3");
  6. startActivity(Intent.createChooser(it, "Choose Email Client"));
  1. //搜索应用
  2. Uri uri = Uri.parse("market://search?q=pname:pkg_name");
  3. Intent it = new Intent(Intent.ACTION_VIEW, uri);
  4. startActivity(it);
  5. //where pkg_name is the full package path for an application

  6. //显示指定应用的详细页面(这个好像不支持了,找不到app_id)
  7. Uri uri = Uri.parse("market://details?id=app_id");
  8. Intent it = new Intent(Intent.ACTION_VIEW, uri);
  9. startActivity(it);
  10. //where app_id is the application ID, find the ID
  11. //by clicking on your application on Market home
  12. //page, and notice the ID from the address bar

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