Android 内置的 Intent
Android 系统内置了大量的 Intent, 我们在此列出一些常用的
1. 拨打电话
// 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);
2.发送短信
// 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);
3. 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);
4. 打开浏览器
// 打开百度主页 Uri uri = Uri.parse("http://www.baidu.com"); Intent intent = new Intent(Intent.ACTION_VIEW, uri); startActivity(intent);
5. 发送电子邮件:(阉割了Google服务的没戏)
// 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);
6. 显示地图
// 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);
7. 路径规划
// 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);
8. 多媒体播放
Intent intent = new Intent(Intent.ACTION_VIEW); Uri uri = Uri.parse("file:///sdcard/foo.mp3"); intent.setDataAndType(uri, "audio/mp3"); startActivity(intent);
获取 SD 卡下所有音频文件,然后播放第一首
Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1"); Intent intent = new Intent(Intent.ACTION_VIEW, uri); startActivity(intent);
9. 打开摄像头拍照
// 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");
调用系统相机应用程序，并存储拍下来的照片
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); time = Calendar.getInstance().getTimeInMillis(); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment .getExternalStorageDirectory().getAbsolutePath()+"/tucue", time + ".jpg"))); startActivityForResult(intent, ACTIVITY_GET_CAMERA_IMAGE);
10. 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);
11. 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);
12. 进入手机设置界面
// 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);
13. 安装 apk
Uri installUri = Uri.fromParts("package", "xxx", null); returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
14. 卸载 apk
Uri uri = Uri.fromParts("package", strPackageName, null); Intent it = new Intent(Intent.ACTION_DELETE, uri); startActivity(it);
15. 发送附件
Intent it = new Intent(Intent.ACTION_SEND); it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text"); it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3"); sendIntent.setType("audio/mp3"); startActivity(Intent.createChooser(it, "Choose Email Client"));
16. 进入联系人页面
Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(People.CONTENT_URI); startActivity(intent);
17. 查看指定联系人
Uri personUri = ContentUris.withAppendedId(People.CONTENT_URI, info.id);//info.id联系人ID Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(personUri); startActivity(intent);
18. 调用系统编辑添加联系人（高版本SDK有效）
Intent it = newIntent(Intent.ACTION_INSERT_OR_EDIT); it.setType("vnd.android.cursor.item/contact"); //it.setType(Contacts.CONTENT_ITEM_TYPE); it.putExtra("name","myName"); it.putExtra(android.provider.Contacts.Intents.Insert.COMPANY, "organization"); it.putExtra(android.provider.Contacts.Intents.Insert.EMAIL,"email"); it.putExtra(android.provider.Contacts.Intents.Insert.PHONE,"homePhone"); it.putExtra(android.provider.Contacts.Intents.Insert.SECONDARY_PHONE,"mobilePhone"); it.putExtra( android.provider.Contacts.Intents.Insert.TERTIARY_PHONE,"workPhone"); it.putExtra(android.provider.Contacts.Intents.Insert.JOB_TITLE,"title"); startActivity(it);
19.调用系统编辑添加联系人（全有效）
Intent intent = newIntent(Intent.ACTION_INSERT_OR_EDIT); intent.setType(People.CONTENT_ITEM_TYPE); intent.putExtra(Contacts.Intents.Insert.NAME, "My Name"); intent.putExtra(Contacts.Intents.Insert.PHONE, "+1234567890"); intent.putExtra(Contacts.Intents.Insert.PHONE_TYPE,Contacts.PhonesColumns.TYPE_MOBILE); intent.putExtra(Contacts.Intents.Insert.EMAIL, "com@com.com"); intent.putExtra(Contacts.Intents.Insert.EMAIL_TYPE, Contacts.ContactMethodsColumns.TYPE_WORK); startActivity(intent);
20. 打开另一程序
Intent i = new Intent(); ComponentName cn = new ComponentName("com.example.jay.test", "com.example.jay.test.MainActivity"); i.setComponent(cn); i.setAction("android.intent.action.MAIN"); startActivityForResult(i, RESULT_OK);
21. 打开录音机
Intent mi = new Intent(Media.RECORD_SOUND_ACTION); startActivity(mi);
22. 从 google 搜索内容
Intent intent = new Intent(); intent.setAction(Intent.ACTION_WEB_SEARCH); intent.putExtra(SearchManager.QUERY,"searchString") startActivity(intent);