為什麼安卓那麼多許可權

1. 安卓手機裝APP時為什麼總會索取那麼多許可權呢

因為他們想獲得一些方面的信息，他們想獲取一些信息，所以讓你給他們那些許可權。

2. 為什麼android app需要獲取這些敏感許可權

為碼笑殲什麼android app需要獲取這些敏感許可權

上網有上網的許可權 讀寫sd卡有讀寫的許可權,你沒有許可權不想幹啥幹啥?

Android是Google開源的系統，又是因為是運行在手機上面的，如果沒有許可權讓用戶來管理的話，這個系統是不能再市場上使用的，主要是為安全著想。

常見的許可權不外乎定位，讀取聯系人，發送讀取簡訊。 因為app完整的的功能需要這些許可權。

6.0敏感許可權需要運行時獲取, 不獲取的話沒有許可權app會crash掉, 或者不能正常使用.

有一些是業務需求，比如裡麵包含掃碼功能，那麼必然需要攝像頭的許可權；一般的通訊社交軟體都會要求讀取通訊錄，以便推廣自己的應用或者方便你和通訊錄的好友一起互動；讀取手機設備升滲碼，是為了和你的手機做綁定保障唯一性和安全性。當然不排除一些惡意應用獲取這些許可權後，損害用戶利益。一般通過某些appStore下載的app，會有一定的安全保障，該應用市場會對app做一定的審查，不推薦直接安裝遲沖來歷不明的應用（包括某些從度獸搜索到的又不在網路市場的應用）。

3. 為什麼現在手機app需要這么多許可權，不給還不讓用。

盜取用戶個人信息，大多數的app根本用不上的許可權，強制要求用戶開啟，不開啟不給使用。這個就是Android系統開源的弊端。
正規的企業開發的app或許不會盜取用戶信息，但是小公司，不正規的app或許就會通過你的手機許可權盜取查看你的信息，上傳信息。
知道為什麼現在信息泄露那麼嚴重嗎
像存儲許可權，每個app在下載到android的時候，就會在它的框架 裡面自動生成一個用以存儲緩存的空間，不需要開啟存儲空間也可以使用，卻被一些不法的app開發者鑽了空子，強制要求開啟存儲許可權，開啟以後，手機里的任意信息app都可以查看。沒有限制。
而一些壓根用不上相機許可權的app，卻要求攝像頭許可權，開啟以後，如果是不正規的軟體。app可以在你不知情的情況下任意使用攝像頭拍照，上傳。
通訊錄，很多APP都會要求通訊錄許可權，這就導致了自己的好友電話被開發者非法上傳，這也是為什麼手機號用久了會導致收到很多垃圾簡訊。
像強制用戶開啟許可權， 不給許可權不能用的app，最好不要使用，直接刪除。自己的手機，憑什麼app開發者要求怎麼樣，就怎麼樣

4. 安卓許可權詳細介紹

安卓許可權詳細介紹
開發android程序的時候常常會設計到各種許可權，程序執行需要讀取到安全敏感項必需在androidmanifest.xml中聲明相關許可權請求,各種許可權說明如下:
android.permission.ACCESS_CHECKIN_PROPERTIES
允許讀寫訪問」properties」或弊罩表在checkin資料庫中，改值可以修改上傳( Allows read/write accessto the 「properties」 table in the checkin database, to change valuesthat get uploaded)
android.permission.ACCESS_COARSE_LOCATION
允許一個程序訪問CellID或WiFi熱點來獲取粗略的位置(Allows an application to accesscoarse (e.g., Cell-ID, WiFi) location)
android.permission.ACCESS_FINE_LOCATION
允許一個程序訪問精良位置(如GPS) (Allows an application to access fine (e.g.,GPS) location)
android.permission.ACCESS_LOCATION_EXTRA_COMMANDS
允許應用程序訪問額外的位置提供命令(Allowsan application to access extra location provider commands)
android.permission.ACCESS_MOCK_LOCATION
允許程序創建模擬位置提供用於測試(Allows an application to create mock locationproviders for testing)
android.permission.ACCESS_NETWORK_STATE
允許程序訪問有關GSM網路信息(Allowsapplications to access information about networks)
android.permission.ACCESS_SURFACE_FLINGER
允許程序使用SurfaceFlinger底層特性(Allows an application to useSurfaceFlinger』s low level features)
android.permission.ACCESS_WIFI_STATE
允許程序訪問Wi-Fi網路狀態信息(Allows applications to access information aboutWi-Fi networks)
android.permission.ADD_SYSTEM_SERVICE
允許程序發布系統級服務(Allows an application to publish system-levelservices).
android.permission.BATTERY_STATS
允許程序更新手機電池統計信息(Allows an application to update the collectedbattery statistics)
android.permission.BLUETOOTH
允許程序連接到已配衫鬧對的藍牙設備(Allowsapplications to connect to paired bluetooth devices)
android.permission.BLUETOOTH_ADMIN
允許程序發現和配對藍牙設備(Allows applications to discover and pair bluetoothdevices)
android.permission.BRICK
請求能夠禁用設備(非常危險)(Required to be able to disable the device (very*erous!).)
android.permission.BROADCAST_PACKAGE_REMOVED
允許程序廣播一個提示消息在一個應用卜賀程序包已經移除後(Allows an application to broadcast anotification that an application package has been removed)
android.permission.BROADCAST_STICKY
允許一個程序廣播常用intents(Allows an application to broadcast stickyintents)
android.permission.CALL_PHONE
允 許一個程序初始化一個電話撥號不需通過撥號用戶界面需要用戶確認(Allows an application to initiate aphone call without going through the Dialer user interface for theuser to confirm the call being placed.)
android.permission.CALL_PRIVILEGED
允 許一個程序撥打任何號碼，包含緊急號碼無需通過撥號用戶界面需要用戶確認(Allows an application to callany phone number, including emergency numbers, without goingthrough the Dialer user interface for the user to confirm the callbeing placed)
android.permission.CAMERA
請求訪問使用照相設備(Required to be able to access the camera device. )
android.permission.CHANGE_COMPONENT_ENABLED_STATE
允 許一個程序是否改變一個組件或其他的啟用或禁用(Allows an application to change whether anapplication component (other than its own) is enabled or not. )
android.permission.CHANGE_CONFIGURATION
允許一個程序修改當前設置，如本地化(Allows an application to modify the currentconfiguration, such as locale. )
android.permission.CHANGE_NETWORK_STATE
允許程序改變網路連接狀態(Allows applications to change network connectivitystate)
android.permission.CHANGE_WIFI_STATE
允許程序改變Wi-Fi連接狀態(Allows applications to change Wi-Fi connectivitystate)
android.permission.CLEAR_APP_CACHE
允許一個程序清楚緩存從所有安裝的程序在設備中(Allows an application to clear the caches ofall installed applications on the device. )
android.permission.CLEAR_APP_USER_DATA
允許一個程序清除用戶設置(Allows an application to clear user data)
android.permission.CONTROL_LOCATION_UPDATES
允許啟用禁止位置更新提示從無線模塊(Allows enabling/disabling location updatenotifications from the radio. )
android.permission.DELETE_CACHE_FILES
允許程序刪除緩存文件(Allows an application to delete cache files)
android.permission.DELETE_PACKAGES
允許一個程序刪除包(Allows an application to delete packages)
android.permission.DEVICE_POWER
允許訪問底層電源管理(Allows low-level access to power management)
android.permission.DIAGNOSTIC
允許程序RW診斷資源(Allows applications to RW to diagnostic resources. )
android.permission.DISABLE_KEYGUARD
允許程序禁用鍵盤鎖(Allows applications to disable the keyguard )
android.permission.DUMP
允許程序返回狀態抓取信息從系統服務(Allows an application to retrieve state mpinformation from system services.)
android.permission.EXPAND_STATUS_BAR
允許一個程序擴展收縮在狀態欄,android開發網提示應該是一個類似windowsmobile中的托盤程序(Allows an application to expand or collapse thestatus bar. )
android.permission.FACTORY_TEST
作為一個工廠測試程序，運行在root用戶(Run as a manufacturer test application,running as the root user. )
android.permission.FLASHLIGHT
訪問閃光燈,android開發網提示htcDream不包含閃光燈(Allows access to the flashlight )
android.permission.FORCE_BACK
允許程序強行一個後退操作是否在頂層activities(Allows an application to force a BACKoperation on whatever is the top activity. )
android.permission.FOTA_UPDATE
暫時不了解這是做什麼使用的，android開發網分析可能是一個預留許可權.
android.permission.GET_ACCOUNTS
訪問一個帳戶列表在Accounts Service中(Allows access to the list of accounts inthe Accounts Service)
android.permission.GET_PACKAGE_SIZE
允許一個程序獲取任何package佔用空間容量(Allows an application to find out the spaceused by any package. )
android.permission.GET_TASKS
允 許一個程序獲取信息有關當前或最近運行的任務，一個縮略的任務狀態，是否活動等等(Allows an application toget information about the currently or recently running tasks: athumbnail representation of the tasks, what activities are runningin it, etc.)
android.permission.HARDWARE_TEST
允許訪問硬體(Allows access to hardware peripherals. )
android.permission.INJECT_EVENTS
允 許一個程序截獲用戶事件如按鍵、觸摸、軌跡球等等到一個時間流，android 開發網提醒算是hook技術吧(Allows anapplication to inject user events (keys, touch, trackball) into theevent stream and deliver them to ANY window.)
android.permission.INSTALL_PACKAGES
允許一個程序安裝packages(Allows an application to install packages. )
android.permission.INTERNAL_SYSTEM_WINDOW
允許打開窗口使用系統用戶界面(Allows an application to open windows that are foruse by parts of the system user interface. )
android.permission.INTERNET
允許程序打開網路套接字(Allows applications to open network sockets)
android.permission.MANAGE_APP_TOKENS
允 許程序管理(創建、催後、 z- order默認向z軸推移)程序引用在窗口管理器中(Allows an application tomanage (create, destroy, Z-order) application tokens in the windowmanager. )
android.permission.MASTER_CLEAR目前還沒有明確的解釋，android開發網分析可能是清除一切數據，類似硬格機
android.permission.MODIFY_AUDIO_SETTINGS
允許程序修改全局音頻設置(Allows an application to modify global audiosettings)
android.permission.MODIFY_PHONE_STATE
允許修改話機狀態，如電源，人機介面等(Allows modification of the telephony state _power on, mmi, etc. )
android.permission.MOUNT_UNMOUNT_FILESYSTEMS
允許掛載和反掛載文件系統可移動存儲(Allows mounting and unmounting file systems forremovable storage. )
android.permission.PERSISTENT_ACTIVITY
允許一個程序設置他的activities顯示(Allow an application to make its activitiespersistent. )
android.permission.PROCESS_OUTGOING_CALLS
允許程序監視、修改有關播出電話(Allows an application to monitor, modify, or abortoutgoing calls)
android.permission.READ_CALENDAR
允許程序讀取用戶日歷數據(Allows an application to read the user』s calendardata.)
android.permission.READ_CONTACTS
允許程序讀取用戶聯系人數據(Allows an application to read the user』s contactsdata.)
android.permission.READ_FRAME_BUFFER
允許程序屏幕波或和更多常規的訪問幀緩沖數據(Allows an application to take screen shotsand more generally get access to the frame buffer data)
android.permission.READ_INPUT_STATE
允許程序返回當前按鍵狀態(Allows an application to retrieve the current state ofkeys and switches. )
android.permission.READ_LOGS
允許程序讀取底層系統日誌文件(Allows an application to read the low-level systemlog files. )
android.permission.READ_OWNER_DATA
允許程序讀取所有者數據(Allows an application to read the owner』s data)
android.permission.READ_SMS
允許程序讀取簡訊息(Allows an application to read SMS messages.)
android.permission.READ_SYNC_SETTINGS
允許程序讀取同步設置(Allows applications to read the sync settings)
android.permission.READ_SYNC_STATS
允許程序讀取同步狀態(Allows applications to read the sync stats)
android.permission.REBOOT
請求能夠重新啟動設備(Required to be able to reboot the device. )
android.permission.RECEIVE_BOOT_COMPLETED
允 許一個程序接收到 ACTION_BOOT_COMPLETED廣播在系統完成啟動(Allows an application toreceive the ACTION_BOOT_COMPLETED that is broadcast after thesystem finishes booting. )
android.permission.RECEIVE_MMS
允許一個程序監控將收到MMS彩信,記錄或處理(Allows an application to monitor incomingMMS messages, to record or perform processing on them. )
android.permission.RECEIVE_SMS
允許程序監控一個將收到簡訊息，記錄或處理(Allows an application to monitor incoming SMSmessages, to record or perform processing on them.)
android.permission.RECEIVE_WAP_PUSH
允許程序監控將收到WAPPUSH信息(Allows an application to monitor incoming WAP pushmessages. )
android.permission.RECORD_AUDIO
允許程序錄制音頻(Allows an application to record audio)
android.permission.REORDER_TASKS
允許程序改變Z軸排列任務(Allows an application to change the Z-order oftasks)
android.permission.RESTART_PACKAGES
允許程序重新啟動其他程序(Allows an application to restart otherapplications)
android.permission.SEND_SMS
允許程序發送SMS簡訊(Allows an application to send SMS messages)
android.permission.SET_ACTIVITY_WATCHER
允許程序監控或控制activities已經啟動全局系統中Allows an application to watch andcontrol how activities are started globally in the system.
android.permission.SET_ALWAYS_FINISH
允許程序控制是否活動間接完成在處於後台時Allows an application to control whetheractivities are immediately finished when put in the background.
android.permission.SET_ANIMATION_SCALE
修改全局信息比例(Modify the global animation scaling factor.)
android.permission.SET_DEBUG_APP
配置一個程序用於調試(Configure an application for debugging.)
android.permission.SET_ORIENTATION
允許底層訪問設置屏幕方向和實際旋轉(Allows low-level access to setting theorientation (actually rotation) of the screen.)
android.permission.SET_PREFERRED_APPLICATIONS
允 許一個程序修改列表參數PackageManager.addPackageToPreferred()和 PackageManager.removePackageFromPreferred()方法(Allows anapplication to modify the list of preferred applications with thePackageManager.addPackageToPreferred() andPackageManager.removePackageFromPreferred() methods.)
android.permission.SET_PROCESS_FOREGROUND
允