Android Intent 用法全面小结_Android

Android Intent 用法全面总结

代码片段

[代码] 调用拨号程序

1// 给移动客服10086拨打电话 
2Uri uri = Uri.parse("tel:10086");
3Intent intent = newIntent(Intent.ACTION_DIAL, uri); 
4startActivity(intent);

[代码] 发送短信或彩信

01// 给10086发送内容为“Hello”的短信 
02Uri uri = Uri.parse("smsto:10086");
03Intent intent = newIntent(Intent.ACTION_SENDTO, uri); 
04intent.putExtra("sms_body","Hello"); 
05startActivity(intent); 
06// 发送彩信（相当于发送带附件的短信） 
07Intent intent = newIntent(Intent.ACTION_SEND); 
08intent.putExtra("sms_body","Hello"); 
09Uri uri = Uri.parse("content://media/external/images/media/23");
10intent.putExtra(Intent.EXTRA_STREAM, uri);
11intent.setType("image/png");
12startActivity(intent);

[代码] 通过浏览器打开网

1// 打开Google主页 
2Uri uri = Uri.parse("http://www.google.com");
3Intent intent  = newIntent(Intent.ACTION_VIEW, uri); 
4startActivity(intent);

[代码] 发送电子邮件

01// [email protected] 
02Uri uri = Uri.parse("mailto:[email protected]");
03Intent intent = newIntent(Intent.ACTION_SENDTO, uri); 
04startActivity(intent); 
05// [email protected]
06Intent intent = newIntent(Intent.ACTION_SEND); 
07intent.putExtra(Intent.EXTRA_EMAIL, "[email protected]"); 
08intent.putExtra(Intent.EXTRA_SUBJECT,"Subject"); 
09intent.putExtra(Intent.EXTRA_TEXT, "Hello"); 
10intent.setType("text/plain");
11startActivity(intent); 
12// 给多人发邮件 
13Intent intent=newIntent(Intent.ACTION_SEND); 
14String[] tos = {"[email protected]","[email protected]"}; // 收件人 
15String[] ccs = {"[email protected]","[email protected]"}; // 抄送 
16String[] bccs = {"[email protected]","[email protected]"}; // 密送 
17intent.putExtra(Intent.EXTRA_EMAIL, tos);
18intent.putExtra(Intent.EXTRA_CC, ccs);
19intent.putExtra(Intent.EXTRA_BCC, bccs);
20intent.putExtra(Intent.EXTRA_SUBJECT,"Subject"); 
21intent.putExtra(Intent.EXTRA_TEXT, "Hello"); 
22intent.setType("message/rfc822");
23startActivity(intent);

[代码] 显示地图与路径规划

1// 打开Google地图中国北京位置（北纬39.9，东经116.3）
2Uri uri = Uri.parse("geo:39.9,116.3");
3Intent intent = newIntent(Intent.ACTION_VIEW, uri); 
4startActivity(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）
6Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=39.9 116.3&daddr=31.2 121.4");
7Intent intent = newIntent(Intent.ACTION_VIEW, uri); 
8startActivity(intent);

[代码] 播放多媒体

1Intent intent = newIntent(Intent.ACTION_VIEW); 
2Uri uri = Uri.parse("file:///sdcard/foo.mp3");
3intent.setDataAndType(uri, "audio/mp3");
4startActivity(intent); 
5  
6Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI,"1"); 
7Intent intent = newIntent(Intent.ACTION_VIEW, uri); 
8startActivity(intent);

[代码] 拍照

1// 打开拍照程序 
2Intent intent = newIntent(MediaStore.ACTION_IMAGE_CAPTURE);  
3startActivityForResult(intent, 0); 
4// 取出照片数据 
5Bundle extras = intent.getExtras(); 
6Bitmap bitmap = (Bitmap) extras.get("data");

[代码] 获取并剪切图片

01// 获取并剪切图片 
02Intent intent = newIntent(Intent.ACTION_GET_CONTENT); 
03intent.setType("image/*");
04intent.putExtra("crop","true"); // 开启剪切 
05intent.putExtra("aspectX",1); // 剪切的宽高比为1：2
06intent.putExtra("aspectY",2); 
07intent.putExtra("outputX",20); // 保存图片的宽和高
08intent.putExtra("outputY",40);  
09intent.putExtra("output", Uri.fromFile(newFile("/mnt/sdcard/temp")));// 保存路径 
10intent.putExtra("outputFormat","JPEG");// 返回格式
11startActivityForResult(intent, 0); 
12// 剪切特定图片 
13Intent intent = newIntent("com.android.camera.action.CROP"); 
14intent.setClassName("com.android.camera","com.android.camera.CropImage"); 
15intent.setData(Uri.fromFile(newFile("/mnt/sdcard/temp"))); 
16intent.putExtra("outputX",1); // 剪切的宽高比为1：2
17intent.putExtra("outputY",2); 
18intent.putExtra("aspectX",20); // 保存图片的宽和高
19intent.putExtra("aspectY",40); 
20intent.putExtra("scale",true); 
21intent.putExtra("noFaceDetection",true);  
22intent.putExtra("output", Uri.parse("file:///mnt/sdcard/temp")); 
23startActivityForResult(intent, 0);

[代码] 打开Google Market

1// 打开Google Market直接进入该程序的详细页面 
2Uri uri = Uri.parse("market://details?id="+ "com.demo.app");
3Intent intent = newIntent(Intent.ACTION_VIEW, uri); 
4startActivity(intent);

[代码] 安装和卸载程序

1Uri uri = Uri.fromParts("package","com.demo.app", null);   
2Intent intent = newIntent(Intent.ACTION_DELETE, uri);   
3startActivity(intent);

[代码] 进入设置界面

1// 进入无线网络设置界面（其它可以举一反三）   
2Intent intent = newIntent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);  
3startActivityForResult(intent, 0);