Android Intent 用法全面总结

1. [代码]调用拨号程序

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// 给移动客服10086拨打电话

Uri uri = Uri.parse( "tel:10086");

Intent intent = newIntent(Intent.ACTION_DIAL, uri);

startActivity(intent);

2. [代码]发送短信或彩信

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// 给10086发送内容为“Hello”的短信

Uri uri = Uri.parse( "smsto:10086");

Intent intent = newIntent(Intent.ACTION_SENDTO, uri);

intent.putExtra( "sms_body", "Hello" );

startActivity(intent);

// 发送彩信（相当于发送带附件的短信）

Intent intent = newIntent(Intent.ACTION_SEND);

intent.putExtra( "sms_body", "Hello" );

Uri uri = Uri.parse( "content://media/external/images/media/23");

intent.putExtra(Intent.EXTRA_STREAM, uri);

intent.setType( "image/png");

startActivity(intent);

3. [代码]通过浏览器打开网页

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// 打开Google主页

Uri uri = Uri.parse( "http://www.google.com");

Intent intent = newIntent(Intent.ACTION_VIEW, uri);

startActivity(intent);

4. [代码]发送电子邮件

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// 给[e-mail]发邮件

Uri uri = Uri.parse( "mailto:[e-mail]");

Intent intent = newIntent(Intent.ACTION_SENDTO, uri);

startActivity(intent);

// 给[e-mail]发邮件发送内容为“Hello”的邮件

Intent intent = newIntent(Intent.ACTION_SEND);

intent.putExtra(Intent.EXTRA_EMAIL, "[e-mail]" );

intent.putExtra(Intent.EXTRA_SUBJECT,"Subject" );

intent.putExtra(Intent.EXTRA_TEXT, "Hello" );

intent.setType( "text/plain");

startActivity(intent);

// 给多人发邮件

Intent intent= newIntent(Intent.ACTION_SEND);

String[] tos = { "[e-mail]", "[e-mail]" }; // 收件人

String[] ccs = { "[e-mail]", "[e-mail]" }; // 抄送

String[] bccs = { "[e-mail]", "[e-mail]" }; // 密送

intent.putExtra(Intent.EXTRA_EMAIL, tos);

intent.putExtra(Intent.EXTRA_CC, ccs);

intent.putExtra(Intent.EXTRA_BCC, bccs);

intent.putExtra(Intent.EXTRA_SUBJECT,"Subject" );

intent.putExtra(Intent.EXTRA_TEXT, "Hello" );

intent.setType( "message/rfc822");

startActivity(intent);

5. [代码]显示地图与路径规划

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// 打开Google地图中国北京位置（北纬39.9，东经116.3）

Uri uri = Uri.parse( "geo:39.9,116.3");

Intent intent = newIntent(Intent.ACTION_VIEW, uri);

startActivity(intent);

// 路径规划：从北京某地（北纬39.9，东经116.3）到上海某地（北纬31.2，东经121.4）

Uri uri = Uri.parse( "http://maps.google.com/maps?f=d&saddr=39.9 116.3&daddr=31.2 121.4");

Intent intent = newIntent(Intent.ACTION_VIEW, uri);

startActivity(intent);

6. [代码]播放多媒体

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Intent intent = newIntent(Intent.ACTION_VIEW);

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

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

startActivity(intent);

Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI,"1" );

Intent intent = newIntent(Intent.ACTION_VIEW, uri);

startActivity(intent);

7. [代码]拍照

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// 打开拍照程序

Intent intent = newIntent(MediaStore.ACTION_IMAGE_CAPTURE);

startActivityForResult(intent, 0 );

// 取出照片数据

Bundle extras = intent.getExtras();

Bitmap bitmap = (Bitmap) extras.get("data" );

8. [代码]获取并剪切图片

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// 获取并剪切图片

Intent intent = newIntent(Intent.ACTION_GET_CONTENT);

intent.setType( "image/*");

intent.putExtra( "crop", "true" ); // 开启剪切

intent.putExtra( "aspectX", 1 ); // 剪切的宽高比为1：2

intent.putExtra( "aspectY", 2 );

intent.putExtra( "outputX", 20 ); // 保存图片的宽和高

intent.putExtra( "outputY", 40 );

intent.putExtra( "output", Uri.fromFile( new File( "/mnt/sdcard/temp"))); // 保存路径

intent.putExtra( "outputFormat", "JPEG" ); // 返回格式

startActivityForResult(intent, 0 );

// 剪切特定图片

Intent intent = newIntent( "com.android.camera.action.CROP" );

intent.setClassName( "com.android.camera", "com.android.camera.CropImage" );

intent.setData(Uri.fromFile(new File( "/mnt/sdcard/temp" )));

intent.putExtra( "outputX", 1 ); // 剪切的宽高比为1：2

intent.putExtra( "outputY", 2 );

intent.putExtra( "aspectX", 20 ); // 保存图片的宽和高

intent.putExtra( "aspectY", 40 );

intent.putExtra( "scale", true );

intent.putExtra( "noFaceDetection", true );

intent.putExtra( "output", Uri.parse( "file:///mnt/sdcard/temp" ));

startActivityForResult(intent, 0 );

9. [代码]打开Google Market

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// 打开Google Market直接进入该程序的详细页面

Uri uri = Uri.parse( "market://details?id="+ "com.demo.app" );

Intent intent = newIntent(Intent.ACTION_VIEW, uri);

startActivity(intent);

10. [代码]安装和卸载程序

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Uri uri = Uri.fromParts( "package" , "com.demo.app" , null);

Intent intent = newIntent(Intent.ACTION_DELETE, uri);

startActivity(intent);