就Android平台而言,URI主要分三个部分:scheme, authority and path。其中authority又分为host和port。格式如下:
scheme://host:port/path
举个实际的例子:
content://com.example.project:200/folder/subfolder/etc
\---------/ \---------------------------/ \---/ \--------------------------/
scheme host port path
\--------------------------------/
authority
现在大家应该知道data flag中那些属性的含义了吧,看下data flag
<data android:host="string"
android:mimeType="string"
android:path="string"
android:pathPattern="string"
android:pathPrefix="string"
android:port="string"
android:scheme="string" />
但是我们在程序中一般是不直接用URI来标识CP的,是的,正如我们通常见到的用定义的常量来标识。例如standard CP中的Contacts,我们就用Contacts.People.CONTENT_URI来标识Contacts CP中People这个表。那么要标识某个具体的人怎么办呢? 这就用到了ContentUris.withAppendedId() 和 Uri.withAppendedPath()。例如我们要表示content://contacts/people/20,那么我们就可以用如下语句:
Uri uri = ContentUris.withAppendedId(People.CONTENT_URI, 20); 或者
Uri uri = Uri.withAppendedPath(People.CONTENT_URI, "20");
举些例子,如:
所有联系人的Uri: content://contacts/people
某个联系人的Uri: content://contacts/people/5
所有图片Uri: content://media/external
某个图片的Uri:content://media/external/images/media/4
下面是一些常用的Uri
显示网页:
1. Uri uri = Uri.parse("http://www.google.com");
2. Intent it = new Intent(Intent.ACTION_VIEW,uri);
3. startActivity(it);
显示地图:
1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
2. Intent it = new Intent(Intent.Action_VIEW,uri);
3. startActivity(it);
路径规划:
1. Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
2. Intent it = new Intent(Intent.ACTION_VIEW,URI);
3. startActivity(it);
拨打电话:
调用拨号程序
1. Uri uri = Uri.parse("tel:xxxxxx");
2. Intent it = new Intent(Intent.ACTION_DIAL, uri);
3. startActivity(it);
1. Uri uri = Uri.parse("tel.xxxxxx");
2. Intent it =new Intent(Intent.ACTION_CALL,uri);
3. 要使用这个必须在配置文件中加入<uses-permission id="Android.permission.CALL_PHONE" />
发送SMS/MMS
调用发送短信的程序
1. Intent it = new Intent(Intent.ACTION_VIEW);
2. it.putExtra("sms_body", "The SMS text");
3. it.setType("vnd.android-dir/mms-sms");
4. startActivity(it);
发送短信
1. Uri uri = Uri.parse("smsto:0800000123");
2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
3. it.putExtra("sms_body", "The SMS text");
4. startActivity(it);
发送彩信
1. Uri uri = Uri.parse("content://media/external/images/media/23");
2. Intent it = new Intent(Intent.ACTION_SEND);
3. it.putExtra("sms_body", "some text");
4. it.putExtra(Intent.EXTRA_STREAM, uri);
5. it.setType("image/png");
6. startActivity(it);
发送Email
1.
2. Uri uri = Uri.parse("mailto:[email protected]");
3. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
4. startActivity(it);
1. Intent it = new Intent(Intent.ACTION_SEND);
2. it.putExtra(Intent.EXTRA_EMAIL, "[email protected]");
3. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
4. it.setType("text/plain");
5. startActivity(Intent.createChooser(it, "Choose Email Client"));
1. Intent it=new Intent(Intent.ACTION_SEND);
2. String[] tos={"[email protected]"};
3. String[] ccs={"[email protected]"};
4. it.putExtra(Intent.EXTRA_EMAIL, tos);
5. it.putExtra(Intent.EXTRA_CC, ccs);
6. it.putExtra(Intent.EXTRA_TEXT, "The email body text");
7. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
8. it.setType("message/rfc822");
9. startActivity(Intent.createChooser(it, "Choose Email Client"));
添加附件
1. Intent it = new Intent(Intent.ACTION_SEND);
2. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
3. it.putExtra(Intent.EXTRA_STREAM, "[url=]file:///sdcard/mysong.mp3[/url]");
4. sendIntent.setType("audio/mp3");
5. startActivity(Intent.createChooser(it, "Choose Email Client"));
播放多媒体
1.
2. Intent it = new Intent(Intent.ACTION_VIEW);
3. Uri uri = Uri.parse("[url=]file:///sdcard/song.mp3[/url]");
4. it.setDataAndType(uri, "audio/mp3");
5. startActivity(it);
1. Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");
2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
3. startActivity(it);
Uninstall 程序
1. Uri uri = Uri.fromParts("package", strPackageName, null);
2. Intent it = new Intent(Intent.ACTION_DELETE, uri);
3. startActivity(it);
//调用相册
public static final String MIME_TYPE_IMAGE_JPEG = "image/*";
public static final int ACTIVITY_GET_IMAGE = 0;
Intent getImage = new Intent(Intent.ACTION_GET_CONTENT);
getImage.addCategory(Intent.CATEGORY_OPENABLE);
getImage.setType(MIME_TYPE_IMAGE_JPEG);
startActivityForResult(getImage, ACTIVITY_GET_IMAGE);
//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);
uninstall apk
/**未测试
Uri uninstallUri = Uri.fromParts("package", "xxx", null);
returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);
*/
Uri packageURI = Uri.parse("package:"+wistatmap);
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
startActivity(uninstallIntent);
install apk
Uri installUri = Uri.fromParts("package", "xxx", null);
returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
play audio
Uri playUri = Uri.parse("[url=]file:///sdcard/download/everything.mp3[/url]");
returnIt = new Intent(Intent.ACTION_VIEW, playUri);
//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, "[url=]file:///sdcard/eoe.mp3[/url]");
sendIntent.setType("audio/mp3");
startActivity(Intent.createChooser(it, "Choose Email Client"));
//搜索应用
Uri uri = Uri.parse("market://search?q=pname:pkg_name");
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);
//where pkg_name is the full package path for an application
//进入联系人页面
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(People.CONTENT_URI);
startActivity(intent);
//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);
关于联系人的一些URI:
管理联系人的Uri:
ContactsContract.Contacts.CONTENT_URI
管理联系人的电话的Uri:
ContactsContract.CommonDataKinds.Phone.CONTENT_URI
管理联系人的Email的Uri:
ContactsContract.CommonDataKinds.Email.CONTENT_URI
(注:Contacts有两个表,分别是rawContact和Data,
rawContact记录了用户的id和name,
其中id栏名称为:ContactsContract.Contacts._ID, name名称栏为ContactContract.Contracts.DISPLAY_NAME,
电话信息表的外键id为ContactsContract.CommonDataKinds.Phone.CONTACT_ID,
电话号码栏名称为:ContactsContract.CommonDataKinds.Phone.NUMBER.
data表中Email地址栏名称为:
ContactsContract.CommonDataKinds.Email.DATA
其外键栏为:ContactsContract.CommonDataKinds.Email.CONTACT_ID)
关于多媒体的一些URI:
存储在sd卡上的音频文件:
MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
存储在手机内部存储器上的音频文件:
MediaStore.Audio.Media.INTERNAL_CONTENT_URI
SD卡上的图片文件内容:
MediaStore.Audio.Images.EXTERNAL_CONTENT_URI
手机内部存储器上的图片:
MediaStore.Audio.Images.INTERNAL_CONTENT_URI
SD卡上的视频:
MediaStore.Audio.Video.EXTERNAL_CONTENT_URI
手机内部存储器上的视频:
MediaStore.Audio.Video.INTERNAL_CONTENT_URI
(注:图片的显示名栏:Media.DISPLAY_NAME,
图片的详细描述栏为:Media.DESCRIPTION
图片的保存位置:Media.DATA
短信URI:
Content://sms
发送箱中的短信URI:
Content://sms/outbox
收信箱中的短信URI:
Content://sms/sent
草稿中的短信URI:
Content://sms/draft
常用代码:
// 查询通讯录中联系人?
Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
// 获取手机号
Cursor phone = cursor.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID +"="+ ContactId, null, null);
// 复杂点:
Cursor phone = cursor.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID +"="+ ContactId +" AND "+ ContactsContract.CommonDataKinds.Phone.TYPE +"="+ ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE, null, null);
ContactsContract.CommonDataKinds.Phone.TYPE 表示联系人电话的类型,
主要对应如下:
TYPE_MOBILE : 手机号码
TYPE_HOME : 住宅电话
TYPE_WORK : 公司电话
打开一个网页,类别是Intent.ACTION_VIEW
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打开地图并定位到一个点
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打开拨号界面,类型是Intent.ACTION_DIAL
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直接拨打电话,与之不同的是,这个直接拨打电话,而不是打开拨号界面
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卸载一个应用,Intent的类别是Intent.ACTION_DELETE
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安装应用程序,Intent的类别是Intent.ACTION_PACKAGE_ADDED
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播放音频文件
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打开发邮件界面
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发邮件,不同是将邮件发送出去
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//发送带附件的邮件
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发短信
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直接发短信
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发彩信
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# Market 相关
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路径规划
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安装指定apk
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进入联系人页面
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查看指定联系人
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调用相册
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调用系统相机应用程序,并存储拍下来的照片
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<uses-permission android:name="android.permission.READ_CONTACTS"/>