android本地uri

① android 中的uri到底是什麼

URI是統一資源標識符(Uniform Resource Identifier) 的意思，它的作用是根據這個URI找到某個資源文件，基本格式如： file:///sdcard/temp.jpg（就是根據你提供的例子生成的一個路徑）
ContentProvider是程序間共享數據的，它也需要生成URI供別的程序調用，格式如：

content:///StudentDB/student/name,以後你在別的程序想訪問另一個程序里的資料庫，就可以用這個URI去訪問了，而不用進行資料庫連接的操作，非常方便
URL顯得很宏觀，是網路資源定位的，而URI是應用程序內部或之間定位

② android中uri由哪三部分組成,簡述其意義

通用資源標志符（Universal Resource Identifier, 簡稱"URI"）。
Uri代表要操作的數據，Android上可用的每種資源 - 圖像、視頻片段等都可以用Uri來表示。
URI一般由三部分組成：
在Android平台，URI主要分三個部分：scheme, authority and path。
其中authority又分為host和port。格式如下：scheme://host:port/path
舉個實際的例子：
content://com.example.project:200/folder/subfolder/etc
\---------/ \------------------ -/ \--/ \----------------------/
scheme host port path
\---------------------------/
authority

我們很經常需要解析Uri，並從Uri中獲取數據。

③ android uri是什麼

URI：資源標志符（Uniform Resource Identifier, 簡稱"URI"）。
用來標識你的文件、資料庫、數據信息等的位置。

④ 怎麼獲取android系統服務，如Uri，intent參數等，或者說去哪裡查看

android系統服務，如Uri，intent參數
可以在Intent中指定程序要執行的動作(比如：view,edit,dial)，以及程序執行到該動作時所需要的資料。都指定好後，只要調用startActivity()，Android系統會自動尋找最符合你指定要求的應用程序，並執行該程序。

★intent大全：

1.從google搜索內容

Intent intent = new Intent();

intent.setAction(Intent.ACTION_WEB_SEARCH);

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

startActivity(intent);

2.瀏覽網頁

Uri uri =Uri.parse("htt。。。。。。。。om");

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

startActivity(it);

3.顯示地圖

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

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

startActivity(it);

4.路徑規劃

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.撥打電話

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

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

startActivity(it);

6.調用發簡訊的程序

Intent it = newIntent(Intent.ACTION_VIEW);

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

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

startActivity(it);

7.發送簡訊

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.發送彩信

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.發送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.播放多媒體

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);

打開照相機

<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.從gallery選取圖片

Intent i = new Intent();

i.setType("image/*");

i.setAction(Intent.ACTION_GET_CONTENT);

startActivityForResult(i, 11);

打開錄音機

Intent mi = new Intent(Media.RECORD_SOUND_ACTION);

startActivity(mi);

16.顯示應用詳細列表

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

剛才找app id未果，結果發現用package name也可以

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

這個簡單多了

17尋找應用

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打開聯系人列表

<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 打開另一程序

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.調用系統編輯添加聯系人(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.調用系統編輯添加聯系人(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