为什么安卓那么多权限

1. 安卓手机装APP时为什么总会索取那么多权限呢

因为他们想获得一些方面的信息，他们想获取一些信息，所以让你给他们那些权限。

2. 为什么android app需要获取这些敏感权限

为码笑歼什么android app需要获取这些敏感权限

上网有上网的权限 读写sd卡有读写的权限,你没有权限不想干啥干啥?

Android是Google开源的系统，又是因为是运行在手机上面的，如果没有权限让用户来管理的话，这个系统是不能再市场上使用的，主要是为安全着想。

常见的权限不外乎定位，读取联系人，发送读取短信。 因为app完整的的功能需要这些权限。

6.0敏感权限需要运行时获取, 不获取的话没有权限app会crash掉, 或者不能正常使用.

有一些是业务需求，比如里面包含扫码功能，那么必然需要摄像头的权限；一般的通讯社交软件都会要求读取通讯录，以便推广自己的应用或者方便你和通讯录的好友一起互动；读取手机设备升渗码，是为了和你的手机做绑定保障唯一性和安全性。当然不排除一些恶意应用获取这些权限后，损害用户利益。一般通过某些appStore下载的app，会有一定的安全保障，该应用市场会对app做一定的审查，不推荐直接安装迟冲来历不明的应用（包括某些从度兽搜索到的又不在网络市场的应用）。

3. 为什么现在手机app需要这么多权限，不给还不让用。

盗取用户个人信息，大多数的app根本用不上的权限，强制要求用户开启，不开启不给使用。这个就是Android系统开源的弊端。
正规的企业开发的app或许不会盗取用户信息，但是小公司，不正规的app或许就会通过你的手机权限盗取查看你的信息，上传信息。
知道为什么现在信息泄露那么严重吗
像存储权限，每个app在下载到android的时候，就会在它的框架 里面自动生成一个用以存储缓存的空间，不需要开启存储空间也可以使用，却被一些不法的app开发者钻了空子，强制要求开启存储权限，开启以后，手机里的任意信息app都可以查看。没有限制。
而一些压根用不上相机权限的app，却要求摄像头权限，开启以后，如果是不正规的软件。app可以在你不知情的情况下任意使用摄像头拍照，上传。
通讯录，很多APP都会要求通讯录权限，这就导致了自己的好友电话被开发者非法上传，这也是为什么手机号用久了会导致收到很多垃圾短信。
像强制用户开启权限， 不给权限不能用的app，最好不要使用，直接删除。自己的手机，凭什么app开发者要求怎么样，就怎么样

4. 安卓权限详细介绍

安卓权限详细介绍
开发android程序的时候常常会设计到各种权限，程序执行需要读取到安全敏感项必需在androidmanifest.xml中声明相关权限请求,各种权限说明如下:
android.permission.ACCESS_CHECKIN_PROPERTIES
允许读写访问”properties”或弊罩表在checkin数据库中，改值可以修改上传( Allows read/write accessto the “properties” table in the checkin database, to change valuesthat get uploaded)
android.permission.ACCESS_COARSE_LOCATION
允许一个程序访问CellID或WiFi热点来获取粗略的位置(Allows an application to accesscoarse (e.g., Cell-ID, WiFi) location)
android.permission.ACCESS_FINE_LOCATION
允许一个程序访问精良位置(如GPS) (Allows an application to access fine (e.g.,GPS) location)
android.permission.ACCESS_LOCATION_EXTRA_COMMANDS
允许应用程序访问额外的位置提供命令(Allowsan application to access extra location provider commands)
android.permission.ACCESS_MOCK_LOCATION
允许程序创建模拟位置提供用于测试(Allows an application to create mock locationproviders for testing)
android.permission.ACCESS_NETWORK_STATE
允许程序访问有关GSM网络信息(Allowsapplications to access information about networks)
android.permission.ACCESS_SURFACE_FLINGER
允许程序使用SurfaceFlinger底层特性(Allows an application to useSurfaceFlinger’s low level features)
android.permission.ACCESS_WIFI_STATE
允许程序访问Wi-Fi网络状态信息(Allows applications to access information aboutWi-Fi networks)
android.permission.ADD_SYSTEM_SERVICE
允许程序发布系统级服务(Allows an application to publish system-levelservices).
android.permission.BATTERY_STATS
允许程序更新手机电池统计信息(Allows an application to update the collectedbattery statistics)
android.permission.BLUETOOTH
允许程序连接到已配衫闹对的蓝牙设备(Allowsapplications to connect to paired bluetooth devices)
android.permission.BLUETOOTH_ADMIN
允许程序发现和配对蓝牙设备(Allows applications to discover and pair bluetoothdevices)
android.permission.BRICK
请求能够禁用设备(非常危险)(Required to be able to disable the device (very*erous!).)
android.permission.BROADCAST_PACKAGE_REMOVED
允许程序广播一个提示消息在一个应用卜贺程序包已经移除后(Allows an application to broadcast anotification that an application package has been removed)
android.permission.BROADCAST_STICKY
允许一个程序广播常用intents(Allows an application to broadcast stickyintents)
android.permission.CALL_PHONE
允 许一个程序初始化一个电话拨号不需通过拨号用户界面需要用户确认(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 许一个程序拨打任何号码，包含紧急号码无需通过拨号用户界面需要用户确认(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
请求访问使用照相设备(Required to be able to access the camera device. )
android.permission.CHANGE_COMPONENT_ENABLED_STATE
允 许一个程序是否改变一个组件或其他的启用或禁用(Allows an application to change whether anapplication component (other than its own) is enabled or not. )
android.permission.CHANGE_CONFIGURATION
允许一个程序修改当前设置，如本地化(Allows an application to modify the currentconfiguration, such as locale. )
android.permission.CHANGE_NETWORK_STATE
允许程序改变网络连接状态(Allows applications to change network connectivitystate)
android.permission.CHANGE_WIFI_STATE
允许程序改变Wi-Fi连接状态(Allows applications to change Wi-Fi connectivitystate)
android.permission.CLEAR_APP_CACHE
允许一个程序清楚缓存从所有安装的程序在设备中(Allows an application to clear the caches ofall installed applications on the device. )
android.permission.CLEAR_APP_USER_DATA
允许一个程序清除用户设置(Allows an application to clear user data)
android.permission.CONTROL_LOCATION_UPDATES
允许启用禁止位置更新提示从无线模块(Allows enabling/disabling location updatenotifications from the radio. )
android.permission.DELETE_CACHE_FILES
允许程序删除缓存文件(Allows an application to delete cache files)
android.permission.DELETE_PACKAGES
允许一个程序删除包(Allows an application to delete packages)
android.permission.DEVICE_POWER
允许访问底层电源管理(Allows low-level access to power management)
android.permission.DIAGNOSTIC
允许程序RW诊断资源(Allows applications to RW to diagnostic resources. )
android.permission.DISABLE_KEYGUARD
允许程序禁用键盘锁(Allows applications to disable the keyguard )
android.permission.DUMP
允许程序返回状态抓取信息从系统服务(Allows an application to retrieve state mpinformation from system services.)
android.permission.EXPAND_STATUS_BAR
允许一个程序扩展收缩在状态栏,android开发网提示应该是一个类似windowsmobile中的托盘程序(Allows an application to expand or collapse thestatus bar. )
android.permission.FACTORY_TEST
作为一个工厂测试程序，运行在root用户(Run as a manufacturer test application,running as the root user. )
android.permission.FLASHLIGHT
访问闪光灯,android开发网提示htcDream不包含闪光灯(Allows access to the flashlight )
android.permission.FORCE_BACK
允许程序强行一个后退操作是否在顶层activities(Allows an application to force a BACKoperation on whatever is the top activity. )
android.permission.FOTA_UPDATE
暂时不了解这是做什么使用的，android开发网分析可能是一个预留权限.
android.permission.GET_ACCOUNTS
访问一个帐户列表在Accounts Service中(Allows access to the list of accounts inthe Accounts Service)
android.permission.GET_PACKAGE_SIZE
允许一个程序获取任何package占用空间容量(Allows an application to find out the spaceused by any package. )
android.permission.GET_TASKS
允 许一个程序获取信息有关当前或最近运行的任务，一个缩略的任务状态，是否活动等等(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
允许访问硬件(Allows access to hardware peripherals. )
android.permission.INJECT_EVENTS
允 许一个程序截获用户事件如按键、触摸、轨迹球等等到一个时间流，android 开发网提醒算是hook技术吧(Allows anapplication to inject user events (keys, touch, trackball) into theevent stream and deliver them to ANY window.)
android.permission.INSTALL_PACKAGES
允许一个程序安装packages(Allows an application to install packages. )
android.permission.INTERNAL_SYSTEM_WINDOW
允许打开窗口使用系统用户界面(Allows an application to open windows that are foruse by parts of the system user interface. )
android.permission.INTERNET
允许程序打开网络套接字(Allows applications to open network sockets)
android.permission.MANAGE_APP_TOKENS
允 许程序管理(创建、催后、 z- order默认向z轴推移)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目前还没有明确的解释，android开发网分析可能是清除一切数据，类似硬格机
android.permission.MODIFY_AUDIO_SETTINGS
允许程序修改全局音频设置(Allows an application to modify global audiosettings)
android.permission.MODIFY_PHONE_STATE
允许修改话机状态，如电源，人机接口等(Allows modification of the telephony state _power on, mmi, etc. )
android.permission.MOUNT_UNMOUNT_FILESYSTEMS
允许挂载和反挂载文件系统可移动存储(Allows mounting and unmounting file systems forremovable storage. )
android.permission.PERSISTENT_ACTIVITY
允许一个程序设置他的activities显示(Allow an application to make its activitiespersistent. )
android.permission.PROCESS_OUTGOING_CALLS
允许程序监视、修改有关播出电话(Allows an application to monitor, modify, or abortoutgoing calls)
android.permission.READ_CALENDAR
允许程序读取用户日历数据(Allows an application to read the user’s calendardata.)
android.permission.READ_CONTACTS
允许程序读取用户联系人数据(Allows an application to read the user’s contactsdata.)
android.permission.READ_FRAME_BUFFER
允许程序屏幕波或和更多常规的访问帧缓冲数据(Allows an application to take screen shotsand more generally get access to the frame buffer data)
android.permission.READ_INPUT_STATE
允许程序返回当前按键状态(Allows an application to retrieve the current state ofkeys and switches. )
android.permission.READ_LOGS
允许程序读取底层系统日志文件(Allows an application to read the low-level systemlog files. )
android.permission.READ_OWNER_DATA
允许程序读取所有者数据(Allows an application to read the owner’s data)
android.permission.READ_SMS
允许程序读取短信息(Allows an application to read SMS messages.)
android.permission.READ_SYNC_SETTINGS
允许程序读取同步设置(Allows applications to read the sync settings)
android.permission.READ_SYNC_STATS
允许程序读取同步状态(Allows applications to read the sync stats)
android.permission.REBOOT
请求能够重新启动设备(Required to be able to reboot the device. )
android.permission.RECEIVE_BOOT_COMPLETED
允 许一个程序接收到 ACTION_BOOT_COMPLETED广播在系统完成启动(Allows an application toreceive the ACTION_BOOT_COMPLETED that is broadcast after thesystem finishes booting. )
android.permission.RECEIVE_MMS
允许一个程序监控将收到MMS彩信,记录或处理(Allows an application to monitor incomingMMS messages, to record or perform processing on them. )
android.permission.RECEIVE_SMS
允许程序监控一个将收到短信息，记录或处理(Allows an application to monitor incoming SMSmessages, to record or perform processing on them.)
android.permission.RECEIVE_WAP_PUSH
允许程序监控将收到WAPPUSH信息(Allows an application to monitor incoming WAP pushmessages. )
android.permission.RECORD_AUDIO
允许程序录制音频(Allows an application to record audio)
android.permission.REORDER_TASKS
允许程序改变Z轴排列任务(Allows an application to change the Z-order oftasks)
android.permission.RESTART_PACKAGES
允许程序重新启动其他程序(Allows an application to restart otherapplications)
android.permission.SEND_SMS
允许程序发送SMS短信(Allows an application to send SMS messages)
android.permission.SET_ACTIVITY_WATCHER
允许程序监控或控制activities已经启动全局系统中Allows an application to watch andcontrol how activities are started globally in the system.
android.permission.SET_ALWAYS_FINISH
允许程序控制是否活动间接完成在处于后台时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
配置一个程序用于调试(Configure an application for debugging.)
android.permission.SET_ORIENTATION
允许底层访问设置屏幕方向和实际旋转(Allows low-level access to setting theorientation (actually rotation) of the screen.)
android.permission.SET_PREFERRED_APPLICATIONS
允 许一个程序修改列表参数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