Android Intent 用法全面总结
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1:2 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 = 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1:2 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);
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);
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);
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);