Intent意图常见用法

来源：互联网发布：floyd算法实验总结编辑：程序博客网时间：2024/06/04 17:26
Intent常见的应用
(1).调用拨号程序Uri uri = Uri.parse("tel:10086");   Intent intent = new Intent(Intent.ACTION_DIAL, uri);   startActivity(intent);   (2).发送短信或者彩信 //发生短信  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);   (3).通过浏览器打开网页Uri uri = Uri.parse("http://www.google.com");   Intent intent  = new Intent(Intent.ACTION_VIEW, uri);   startActivity(intent);  (4).发送电子邮件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);   (5).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);   (6).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);   (7).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");   (8).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);   (9).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);   (10).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);   (11).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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