1、用Context指定

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??Intent i=new Intent(context,Receivered.class);
? context.startActivity(i);
2、通過配置指定

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??????? <activity android:name="com.neusoft.android.Demo.photo.TestActivity">
??????????? <intent-filter>
??????????? ?<action android:name="test_action"/>
??????????? ?<category android:name="android.intent.category.DEFAULT"/>
??????????? </intent-filter>
??????? </activity>

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??Intent i = new Intent();??
??i.setAction("test_action");?

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? this.startActivity(i);??

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3、直接指定

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??

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下面列出幾種Intent 的用法
顯示網(wǎng)頁:

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Uri uri = Uri.parse("http://www.google.com");
Intent it? = new Intent(Intent.ACTION_VIEW,uri);
startActivity(it);
顯示地圖:

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Uri uri = Uri.parse("geo:38.899533,-77.036476");
Intent it = new Intent(Intent.Action_VIEW,uri);
startActivity(it);
路徑規(guī)劃:

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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);
撥打電話:
調(diào)用撥號程序

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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);
要使用這個必須在配置文件 中加入<uses-permission id="android .permission.CALL_PHONE" />
發(fā)送SMS/MMS
調(diào)用發(fā)送短信 的程序

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Intent it = new Intent(Intent.ACTION_VIEW);???
it.putExtra("sms_body", "The SMS text");???
it.setType("vnd.android-dir/mms-sms");???
startActivity(it);??
發(fā)送短信

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Uri uri = Uri.parse("smsto:0800000123");???
Intent it = new Intent(Intent.ACTION_SENDTO, uri);???
it.putExtra("sms_body", "The SMS text");???
startActivity(it);??
發(fā)送彩信

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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);
發(fā)送Email

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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

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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 多媒體

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??
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);??

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? Intent?i?=?new?Intent(Test.this,?TestB.class); ?

? this.startActivity(i);??

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轉(zhuǎn)載于:https://www.cnblogs.com/wzh206/archive/2010/04/28/1722773.html

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