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:<pre name="code" class="java">Uri uri = Uri.parse("geo:38.899533,-77.036476");

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

startActivity(it); </pre>路径规划:<pre name="code" class="java">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);</pre>拨打电话:

<br>调用拨号程序<pre name="code" class="java">Uri uri = Uri.parse("tel:xxxxxx");

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

startActivity(it); </pre><pre name="code" class="java">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" /></pre>发送SMS/MMS

<br>调用发送短信的程序<pre name="code" class="java">Intent it = new Intent(Intent.ACTION_VIEW);

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

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

startActivity(it); </pre>发送短信<pre name="code" class="java">Uri uri = Uri.parse("smsto:0800000123");

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

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

startActivity(it); </pre>发送彩信<pre name="code" class="java">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); </pre>发送Email<pre name="code" class="java">

Uri uri = Uri.parse("mailto:xxx@abc.com");

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

startActivity(it);

</pre><pre name="code" class="java">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"));

</pre><pre name="code" class="java">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"));

</pre>添加附件<pre name="code" class="java">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"));

</pre>播放多媒体<pre name="code" class="java">

Intent it = new Intent(Intent.ACTION_VIEW);

Uri uri = Uri.parse("file:///sdcard/song.mp3");

it.setDataAndType(uri, "audio/mp3");

startActivity(it);

</pre><pre name="code" class="java">Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");

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

startActivity(it); </pre>Uninstall 程序<pre name="code" class="java">Uri uri = Uri.fromParts("package", strPackageName, null);

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

startActivity(it);

</pre>

<br>

<br>uninstall apk

<br><pre name="code" class="java">Uri uninstallUri = Uri.fromParts("package", "xxx", null);

returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);</pre>

<br>

<br>install apk

<br><pre name="code" class="java">Uri installUri = Uri.fromParts("package", "xxx", null);

returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);</pre>

<br>

<br>play audio

<br><pre name="code" class="java">Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");

returnIt = new Intent(Intent.ACTION_VIEW, playUri);</pre>

<br>

<br><pre name="code" class="java">//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"));</pre>

<br>

<br><pre name="code" class="java">//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</pre>

<br>

<br>I am using the following code snippet for searching through Google<pre name="code" class="java">Intent intent = new Intent();

intent.setAction(Intent.ACTION_WEB_SEARCH);

intent.putExtra(SearchManager.QUERY,"searchString")

startActivity(intent);</pre>

<br>

<br>//调用系统安装软件：

<br>Intent intent = new Intent();

<br>intent.setDataAndType(Uri.parse("file:///sdcard/newmopclient.apk"), "application/vnd.android.package-archive");

<br>startActivity(intent);

<br>

<br>

<br>//调用相册

<br>public static final String MIME_TYPE_IMAGE_JPEG = "image/*";

<br>public static final int ACTIVITY_GET_IMAGE = 0;

<br>

<br>Intent getImage = new Intent(Intent.ACTION_GET_CONTENT); 

<br>getImage.addCategory(Intent.CATEGORY_OPENABLE); 

<br>getImage.setType(MIME_TYPE_IMAGE_JPEG);

<br>startActivityForResult(getImage, ACTIVITY_GET_IMAGE);

<br>

<br>//调用系统相机应用程序，并存储拍下来的照片

<br>Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 

<br>time = Calendar.getInstance().getTimeInMillis();

<br>intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment

<br>.getExternalStorageDirectory().getAbsolutePath()+"/tucue", time + ".jpg")));

<br>startActivityForResult(intent, ACTIVITY_GET_CAMERA_IMAGE);

<br>