Intent在Android中的几种用法
时间：2010-11-15 来源：landuochong
转自东方尚智沈大海csdn博客：
如果是从BroadcastReceiver 启动一个新的Activity , 不要忘记i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
public class MyReceiver extends BroadcastReceiver{
public static final String action="acc";
public void onReceive(Context context, Intent intent) {
Intent i=new Intent(context,Receivered.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}
}
1. 指定act ion 和type
// SIM import
Intent importIntent = new Intent(Intent.ACTION_VIEW);
importIntent.setType("vnd.android.cursor.item/sim-contact");
importIntent.setClassName("com.android.phone", "com.android.phone.SimContacts");
menu.add(0, 0, 0, R.string.importFromSim)
.setIcon(R.drawable.ic_menu_import_contact)
.setIntent(importIntent);
2. 指定act ion, da ta和type
(1)隐式查找type
示例代码：
uri: content://simcontacts/simPeople/(id)
intent = new Intent("android.intent.action.SIMEDIT",uri);
startActivity(intent);
程序会很据data中的uri去查找匹配的type（必须的）
provider中的getType()
case SIM_PEOPLE_ID:
return "vnd.android.cursor.item/sim-contact";
配置文件中的filter设定
AndroidManifest.xml
<intent-filter>
<action android:name="android.intent.action.SIMEDIT" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="vnd.android.cursor.item/sim-contact" />
</intent-filter>
也可以自己设定type，但只能使用 setDataAndType()
3. 其他设定intent的属性方式
Intent setComponent(ComponentName component)
Intent setClassName(Context packageContext, String className)
Intent setClassName(String packageName, String className)
Intent setClass(Context packageContext, Class<?> cls)
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=dsaddr=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:[email protected]");
- Intent it = new Intent(Intent.ACTION_SENDTO, uri);
- startActivity(it);
- Intent it = new Intent(Intent.ACTION_SEND);
- it.putExtra(Intent.EXTRA_EMAIL, "[email protected]");
- 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={"[email protected]"};
- String[] ccs={"[email protected]"};
- 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);
uninstall apk
- Uri uninstallUri = Uri.fromParts("package", "xxx", null);
-
- returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);
- Uri installUri = Uri.fromParts("package", "xxx", null);
-
- returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
- Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");
-
- returnIt = new Intent(Intent.ACTION_VIEW, playUri);
- //发送附件
- Intent it = new Intent(Intent.ACTION_SEND);
- it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
- it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3");
- sendIntent.setType("audio/mp3");
- startActivity(Intent.createChooser(it, "Choose Email Client"));
- //搜索应用
- Uri uri = Uri.parse("market://search?q=pname:pkg_name");
- Intent it = new Intent(Intent.ACTION_VIEW, uri);
- startActivity(it);
- //where pkg_name is the full package path for an application
-
- //显示指定应用的详细页面（这个好像不支持了，找不到app_id）
- Uri uri = Uri.parse("market://details?id=app_id");
- Intent it = new Intent(Intent.ACTION_VIEW, uri);
- startActivity(it);
- //where app_id is the application ID, find the ID
- //by clicking on your application on Market home
- //page, and notice the ID from the address bar
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