Intent 用法全面总结

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调用拨号程序

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

发送短信或彩信

// 给10086发送内容为“Hello”的短信Uri uri = Uri.parse("smsto:10086");Intent intent = new Intent(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 = new Intent(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);

通过浏览器打开网页

// 打开Google主页Uri uri = Uri.parse("http://www.google.com");Intent intent  = new Intent(Intent.ACTION_VIEW, uri);startActivity(intent);

发送电子邮件

// 给someone@domain.com发邮件Uri uri = Uri.parse("mailto:someone@domain.com");Intent intent = new Intent(Intent.ACTION_SENDTO, uri);startActivity(intent);// 给someone@domain.com发邮件发送内容为“Hello”的邮件Intent intent = new Intent(Intent.ACTION_SEND);intent.putExtra(Intent.EXTRA_EMAIL, "someone@domain.com");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=new Intent(Intent.ACTION_SEND);String[] tos = {"1@abc.com", "2@abc.com"}; // 收件人String[] ccs = {"3@abc.com", "4@abc.com"}; // 抄送String[] bccs = {"5@abc.com", "6@abc.com"}; // 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);

显示地图与路径规划

// 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 = new Intent(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 = new Intent(Intent.ACTION_VIEW, uri);startActivity(intent);

播放多媒体

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

拍照

// 打开拍照程序Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, 0);// 取出照片数据Bundle extras = intent.getExtras(); Bitmap bitmap = (Bitmap) extras.get("data");

获取并剪切图片

// 获取并剪切图片Intent intent = new Intent(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1：2intent.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 = new Intent("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1：2intent.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);

打开Google Market

// 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 = new Intent(Intent.ACTION_VIEW, uri);startActivity(intent);

安装和卸载程序

Uri uri = Uri.fromParts("package", "com.demo.app", null);  Intent intent = new Intent(Intent.ACTION_DELETE, uri);  startActivity(intent);

进入设置界面

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

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