android本地uri

① android 中的uri到底是什么

URI是统一资源标识符(Uniform Resource Identifier) 的意思，它的作用是根据这个URI找到某个资源文件，基本格式如： file:///sdcard/temp.jpg（就是根据你提供的例子生成的一个路径）
ContentProvider是程序间共享数据的，它也需要生成URI供别的程序调用，格式如：

content:///StudentDB/student/name,以后你在别的程序想访问另一个程序里的数据库，就可以用这个URI去访问了，而不用进行数据库连接的操作，非常方便
URL显得很宏观，是网络资源定位的，而URI是应用程序内部或之间定位

② android中uri由哪三部分组成,简述其意义

通用资源标志符（Universal Resource Identifier, 简称"URI"）。
Uri代表要操作的数据，Android上可用的每种资源 - 图像、视频片段等都可以用Uri来表示。
URI一般由三部分组成：
在Android平台，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

我们很经常需要解析Uri，并从Uri中获取数据。

③ android uri是什么

URI：资源标志符（Uniform Resource Identifier, 简称"URI"）。
用来标识你的文件、数据库、数据信息等的位置。

④ 怎么获取android系统服务，如Uri，intent参数等，或者说去哪里查看

android系统服务，如Uri，intent参数
可以在Intent中指定程序要执行的动作(比如：view,edit,dial)，以及程序执行到该动作时所需要的资料。都指定好后，只要调用startActivity()，Android系统会自动寻找最符合你指定要求的应用程序，并执行该程序。

★intent大全：

1.从google搜索内容

Intent intent = new Intent();

intent.setAction(Intent.ACTION_WEB_SEARCH);

intent.putExtra(SearchManager.QUERY,"searchString")

startActivity(intent);

2.浏览网页

Uri uri =Uri.parse("htt。。。。。。。。om");

Intent it = new Intent(Intent.ACTION_VIEW,uri);

startActivity(it);

3.显示地图

Uri uri = Uri.parse("geo:38.899533,-77.036476");

Intent it = newIntent(Intent.Action_VIEW,uri);

startActivity(it);

4.路径规划

Uri uri =Uri.parse("http。。。。。。。。。。/maps?
f=dsaddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");

Intent it = newIntent(Intent.ACTION_VIEW,URI);

startActivity(it);

5.拨打电话

Uri uri =Uri.parse("tel:xxxxxx");

Intent it = new Intent(Intent.ACTION_DIAL,uri);

startActivity(it);

6.调用发短信的程序

Intent it = newIntent(Intent.ACTION_VIEW);

it.putExtra("sms_body", "TheSMS text");

it.setType("vnd.android-dir/mms-sms");

startActivity(it);

7.发送短信

Uri uri =Uri.parse("smsto:0800000123");

Intent it = newIntent(Intent.ACTION_SENDTO, uri);

it.putExtra("sms_body", "TheSMS text");

startActivity(it);

String body="this is sms demo";

Intent mmsintent = newIntent(Intent.ACTION_SENDTO, Uri.fromParts("smsto",
number, null));

mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY,body);

mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE,true);

mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT,true);

startActivity(mmsintent);

8.发送彩信

Uri uri =Uri.parse("content://media/external/images/media/23");

Intent it = newIntent(Intent.ACTION_SEND);

it.putExtra("sms_body","some text");

it.putExtra(Intent.EXTRA_STREAM, uri);

it.setType("image/png");

startActivity(it);

StringBuilder sb = new StringBuilder();

sb.append("file://");

sb.append(fd.getAbsoluteFile());

Intent intent = newIntent(Intent.ACTION_SENDTO, Uri.fromParts("mmsto",
number, null));

// Below extra datas are all optional.

intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_SUBJECT,subject);

intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY,body);

intent.putExtra(Messaging.KEY_ACTION_SENDTO_CONTENT_URI,sb.toString());

intent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE,composeMode);

intent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT,exitOnSent);

startActivity(intent);

9.发送Email

Uri uri =Uri.parse("mailto:[email protected]");

Intent it = newIntent(Intent.ACTION_SENDTO, uri);

startActivity(it);

Intent it = new Intent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_EMAIL,"[email protected]");

it.putExtra(Intent.EXTRA_TEXT, "Theemail body text");

it.setType("text/plain");

startActivity(Intent.createChooser(it,"Choose Email Client"));

Intent it=new Intent(Intent.ACTION_SEND);

String[] tos={"[email protected]"};

String[]ccs={"[email protected]"};

it.putExtra(Intent.EXTRA_EMAIL, tos);

it.putExtra(Intent.EXTRA_CC, ccs);

it.putExtra(Intent.EXTRA_TEXT, "Theemail body text");

it.putExtra(Intent.EXTRA_SUBJECT, "Theemail subject text");

it.setType("message/rfc822");

startActivity(Intent.createChooser(it,"Choose Email Client"));

Intent it = newIntent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_SUBJECT, "Theemail subject text");

it.putExtra(Intent.EXTRA_STREAM,"file:///sdcard/mysong.mp3");

sendIntent.setType("audio/mp3");

startActivity(Intent.createChooser(it,"Choose Email Client"));

10.播放多媒体

Intent it = new Intent(Intent.ACTION_VIEW);

Uri uri =Uri.parse("file:///sdcard/song.mp3");

it.setDataAndType(uri,"audio/mp3");

startActivity(it);

Uri uri
=Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI,"1");

Intent it = new Intent(Intent.ACTION_VIEW,uri);

startActivity(it);

11.uninstall apk

Uri uri =Uri.fromParts("package", strPackageName, null);

Intent it = newIntent(Intent.ACTION_DELETE, uri);

startActivity(it);

12.install apk

Uri installUri = Uri.fromParts("package","xxx", null);

returnIt = newIntent(Intent.ACTION_PACKAGE_ADDED, installUri);

打开照相机

<1>Intent i = new Intent(Intent.ACTION_CAMERA_BUTTON, null);

this.sendBroadcast(i);

<2>long dateTaken = System.currentTimeMillis();

String name = createName(dateTaken) + ".jpg";

fileName = folder + name;

ContentValues values = new ContentValues();

values.put(Images.Media.TITLE, fileName);

values.put("_data", fileName);

values.put(Images.Media.PICASA_ID, fileName);

values.put(Images.Media.DISPLAY_NAME, fileName);

values.put(Images.Media.DESCRIPTION, fileName);

values.put(Images.ImageColumns.BUCKET_DISPLAY_NAME, fileName);

Uri photoUri = getContentResolver().insert(

MediaStore.Images.Media.EXTERNAL_CONTENT_URI,values);

Intent inttPhoto = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

inttPhoto.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);

startActivityForResult(inttPhoto, 10);

14.从gallery选取图片

Intent i = new Intent();

i.setType("image/*");

i.setAction(Intent.ACTION_GET_CONTENT);

startActivityForResult(i, 11);

打开录音机

Intent mi = new Intent(Media.RECORD_SOUND_ACTION);

startActivity(mi);

16.显示应用详细列表

Uri uri =Uri.parse("market://details?id=app_id");

Intent it = new Intent(Intent.ACTION_VIEW,uri);

startActivity(it);

//where app_id is the application ID, findthe ID

//by clicking on your application on Markethome

//page, and notice the ID from the addressbar

刚才找app id未果，结果发现用package name也可以

Uri uri =Uri.parse("market://details?id=");

这个简单多了

17寻找应用

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 pathfor an application

18打开联系人列表

<1>

Intent i = new Intent();

i.setAction(Intent.ACTION_GET_CONTENT);

i.setType("vnd.android.cursor.item/phone");

startActivityForResult(i, REQUEST_TEXT);

<2>

Uri uri = Uri.parse("content://contacts/people");

Intent it = new Intent(Intent.ACTION_PICK, uri);

startActivityForResult(it, REQUEST_TEXT);

19 打开另一程序

Intent i = new Intent();

ComponentName cn = newComponentName("com.yellowbook.android2",

"com.yellowbook.android2.AndroidSearch");

i.setComponent(cn);

i.setAction("android.intent.action.MAIN");

startActivityForResult(i, RESULT_OK);

20.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);

21.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, "[email protected]");

intent.putExtra(Contacts.Intents.Insert.EMAIL_TYPE,
Contacts.ContactMethodsColumns.TYPE_WORK);

startActivity(intent);

★intent action大全：

android.intent.action.ALL_APPS

android.intent.action.ANSWER

android.intent.action.ATTACH_DATA

android.intent.action.BUG_REPORT

android.intent.action.CALL

android.intent.action.CALL_BUTTON

android.intent.action.CHOOSER

android.intent.action.CREATE_LIVE_FOLDER

android.intent.action.CREATE_SHORTCUT

android.intent.action.DELETE

android.intent.action.DIAL

android.intent.action.EDIT

android.intent.action.GET_CONTENT

android.intent.action.INSERT

android.intent.action.INSERT_OR_EDIT

android.intent.action.MAIN

android.intent.action.MEDIA_SEARCH

android.intent.action.PICK

android.intent.action.PICK_ACTIVITY

android.intent.action.RINGTONE_PICKER

android.intent.action.RUN

android.intent.action.SEARCH

android.intent.action.SEARCH_LONG_PRESS

android.intent.action.SEND

android.intent.action.SENDTO

android.intent.action.SET_WALLPAPER

android.intent.action.SYNC

android.intent.action.SYSTEM_TUTORIAL

android.intent.action.VIEW

android.intent.action.VOICE_COMMAND

android.intent.action.WEB_SEARCH

android.net.wifi.PICK_WIFI_NETWORK

android.settings.AIRPLANE_MODE_SETTINGS

android.settings.APN_SETTINGS

android.settings.APPLICATION_DEVELOPMENT_SETTINGS

android.settings.APPLICATION_SETTINGS

android.settings.BLUETOOTH_SETTINGS

android.settings.DATA_ROAMING_SETTINGS

android.settings.DATE_SETTINGS

android.settings.DISPLAY_SETTINGS

android.settings.INPUT_METHOD_SETTINGS

android.settings.INTERNAL_STORAGE_SETTINGS

android.settings.LOCALE_SETTINGS

android.settings.LOCATION_SOURCE_SETTINGS

android.settings.MANAGE_APPLICATIONS_SETTINGS

android.settings.MEMORY_CARD_SETTINGS

android.settings.NETWORK_OPERATOR_SETTINGS

android.settings.QUICK_LAUNCH_SETTINGS

android.settings.SECURITY_SETTINGS

android.settings.SETTINGS

android.settings.SOUND_SETTINGS

android.settings.SYNC_SETTINGS

android.settings.USER_DICTIONARY_SETTINGS

android.settings.WIFI_IP_SETTINGS

android.settings.WIFI_SETTINGS

android.settings.WIRELESS_SETTINGS