Android Intent 用法全面总结

来自:http://www.oschina.net/code/snippet_54100_7587

 

// 监听网络改变状态!

android.net.ConnectivityManager.CONNECTIVITY_ACTION

  

 

代码片段(11)

[代码] 调用拨号程序

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1	// 给移动客服10086拨打电话

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

3	Intent intent = new Intent(Intent.ACTION_DIAL, uri);

4	startActivity(intent);

[代码] 发送短信或彩信

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01	// 给10086发送内容为“Hello”的短信

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

03	Intent intent = new Intent(Intent.ACTION_SENDTO, uri);

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

05	startActivity(intent);

06	// 发送彩信（相当于发送带附件的短信）

07	Intent intent = new Intent(Intent.ACTION_SEND);

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

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

10	intent.putExtra(Intent.EXTRA_STREAM, uri);

11	intent.setType("image/png");

12	startActivity(intent);

[代码] 通过浏览器打开网页

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1	// 打开Google主页

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

3	Intent intent  = new Intent(Intent.ACTION_VIEW, uri);

4	startActivity(intent);

[代码] 发送电子邮件

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01	// 给[e-mail]发邮件

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

03	Intent intent = new Intent(Intent.ACTION_SENDTO, uri);

04	startActivity(intent);

05	// 给[e-mail]发邮件发送内容为“Hello”的邮件

06	Intent intent = new Intent(Intent.ACTION_SEND);

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

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

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

10	intent.setType("text/plain");

11	startActivity(intent);

12

// 给多人发邮件

13	Intent intent=new Intent(Intent.ACTION_SEND);

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

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

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

17	intent.putExtra(Intent.EXTRA_EMAIL, tos);

18	intent.putExtra(Intent.EXTRA_CC, ccs);

19	intent.putExtra(Intent.EXTRA_BCC, bccs);

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

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

22	intent.setType("message/rfc822");

23	startActivity(intent);

[代码] 显示地图与路径规划

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1	// 打开Google地图中国北京位置（北纬39.9，东经116.3）

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

3	Intent intent = new Intent(Intent.ACTION_VIEW, uri);

4	startActivity(intent);

5	// 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）

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

7	Intent intent = new Intent(Intent.ACTION_VIEW, uri);

8	startActivity(intent);

[代码] 播放多媒体

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1	Intent intent = new Intent(Intent.ACTION_VIEW);

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

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

4	startActivity(intent);

5

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

7	Intent intent = new Intent(Intent.ACTION_VIEW, uri);

8	startActivity(intent);

[代码] 拍照

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1

// 打开拍照程序

2	Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

3	startActivityForResult(intent, 0);

4

// 取出照片数据

5	Bundle extras = intent.getExtras();

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

[代码] 获取并剪切图片

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01	// 获取并剪切图片

02	Intent intent = new Intent(Intent.ACTION_GET_CONTENT);

03	intent.setType("image/*");

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

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

06	intent.putExtra("aspectY", 2);

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

08	intent.putExtra("outputY", 40);

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

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

11	startActivityForResult(intent, 0);

12

// 剪切特定图片

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

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

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

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

17	intent.putExtra("outputY", 2);

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

19	intent.putExtra("aspectY", 40);

20	intent.putExtra("scale", true);

21	intent.putExtra("noFaceDetection", true);

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

23	startActivityForResult(intent, 0);

[代码] 打开Google Market

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1	// 打开Google Market直接进入该程序的详细页面

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

3	Intent intent = new Intent(Intent.ACTION_VIEW, uri);

4	startActivity(intent);

[代码] 安装和卸载程序

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

2	Intent intent = new Intent(Intent.ACTION_DELETE, uri);

3	startActivity(intent);

[代码] 进入设置界面

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1	// 进入无线网络设置界面（其它可以举一反三）

2	Intent intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);

3	startActivityForResult(intent, 0);

[代码] 返回桌面

 

Intent home = new Intent(Intent.ACTION_MAIN);
  home.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
  home.addCategory(Intent.CATEGORY_HOME);
  startActivity(home);