Requires root for full function. Some keys can still work without root. No Root users running Jelly Bean (4.1) and newer can also get Button Savior Non Root to get same functions.
You will need to upgrade your SuperSU to latest version if you have problem with Home, Back, and Menu keys
Top 1 Software key App on Android Market
Top 10 Must have app for root devices
Top 1 Must have app on HTC HD2
Top 1 Software key app with best customization features
Works from 1.5 to 4.0(ICS)
If you are afraid of breaking your hardware keys or you have broken keys or you simply just don't have any key on your device, get Button Savior to make your life easier.
Button Savior V2.1 is even better. If you have a Kitkat device, you get the ability to turn off statusbar or bottom navigation bar to release more screen area!
This app will display a floating software key panel which can be summoned everywhere anytime. Button Savior 1.1.6 or later now suppports E-INK display with specially made themes provided by XDA member Berlinski.
For non root user: You can still use power off, Home, Camera, Call , and volume keys or you can get Button Savior non root if you are running Jelly Bean or newer.
[Features]
☆ (NEW) Immersive mode and full screen mode to get rid of Android navigation bar completely!
☆ (NEW) PopControl that allows you to add favourite action and use instantly.
☆ (NEW) Hover control supported for automatic Software Button visibility control with mouse or Samsung S-Pen
☆ (NEW) Free floatable trigger icon
☆ (NEW) Swipe to show Button Savior panel from both sides
☆ Simulates 'Home' 'Back' 'Search' 'Back' 'Recent Task' 'Screen Off' 'Volume', 'Directional Key'
☆ Can set to always open or auto hide based on user customizable timer
☆ Two types of trigger action to choose from (Gesture trigger and Click trigger)
☆ Added Camera key and Call key simulation
☆ Customizable trigger position
☆ Also provides themese to support e-ink display
☆ Can change it to one click mode for super fast button action in option
☆ Can create shortcut action such as call someone or go to bookmark on Call or Camera keys. (With PRO)
[Not Root?]
☆ Home key is supported
☆ Power key is supported
☆ Volume key is supported
☆ Camera key is supported
☆ Call key is supported
IF YOU HAVE PROBLEM GRANTING ROOT FOR THIS APP
If your device is rooted and still cannot use keys except home, please update su binary and superuser apk.
IF YOU ARE UNABLE TO UNINSTALL
You need to disable screen off feature first. To disable, go to setting/location secuirty/device admin to remove Button Savior from the list.
Theme contribution list:
(1) Default (XDA member stefen)
(2) Froyo (XDA member hlvl)
(3) Sense UI (XDA member internauta2000)
(4) Honeycomb (XDA member securecrt)
(5) Pen's Ginger (XDA member Pens and DreamS)
(6) Pen's Honeycomb (XDA member Pens and DreamS)
(7) Pen's Sense UI (XDA member Pens and DreamS)
(8) Contrast for E-INK (XDA member OMGWTF_BBQ aka BerlinSki)
(9) Metro for E-INK (XDA member OMGWTF_BBQ aka BerlinSki)
(10) Subtle for E-INK (XDA member OMGWTF_BBQ aka BerlinSki)
(11) K3 ICS (XDA member kam333)
(12) K3 Honeycomb (XDA member kam333)
(13) Rajiv's Windows RT (XDA member rajiv)
[This app requires following permission because]
☆ GET TASK: Need to display recent app
☆ VIBRATE: For hepatic feedback
☆ INTERNET: For ads and for shortcut with internet action
☆ ACCESS NETWORK: For ads
☆ MAKE CALL: For direct dial shortcut
需要根全功能。某些键仍然可以工作，没有根。没有运行果冻豆（4.1）和更新也可以得到按钮救主无根的根用户获得相同的功能。
你需要，如果你有问题，主页，返回你SuperSU升级到最新版本，并菜单键
前1软件关键应用程序在Android Market
十大必须有应用程序的根设备
顶部1必须有HTC HD2应用程序
用最好的定制功能前1软件关键应用程序
从1.5到4.0的作品（ICS）的
如果你是怕打破您的硬件密钥，或者你已经打破键，或者你根本就是没有的设备上的任何按键，让按钮的救主，让您的生活更轻松。
按钮救主V2.1，甚至更好。如果你有一个奇巧的设备，你要关闭状态栏或底部的导航栏，以释放更多的屏幕区域的能力！
这个程序将显示哪些随处随时召唤一个浮动的软件密钥面板。按钮救主1.1.6或更高版本，现在suppports由XDA成员柏林斯基提供特制主题的E-INK显示屏。
对于非root用户：您仍然可以使用电源，主页，摄像头，通话和音量键，或者如果你正在运行果冻豆或更新版本，你可以得到按钮救主无根。
[产品特点]
☆（NEW）沉浸模式和全屏模式来摆脱Android的导航栏彻底！
☆（NEW）PopControl，使您可以添加喜欢的动作，并使用瞬间。
☆（NEW）哈弗控制支持自动软件按钮的可视性与控制鼠标和三星的S-笔
☆（NEW）免费漂浮触发图标
☆（NEW）刷卡显示双方按钮救主面板
☆模拟“家”“后退”“搜索”“返回”“近期任务”“屏幕关闭”“音量”，“方向键”
☆可根据用户自定义定时器设置为始终打开或自动隐藏
☆两种类型的触发动作可供选择（手势触发和点击触发）
☆增加了相机键和通话键模拟
☆可定制的触发位置
☆还提供themese支持电子墨水显示屏
☆可将其更改为点击模式选项中的超快速按钮操作
☆可创建快捷方式操作，如某人打电话或者去书签上的电话或相机键。 （带PRO）
[不是root？]
☆支持Home键
☆支持电源键
☆支持音量键
☆支持相机键
☆支持通话键
如果你不能给予ROOT为这个应用程序
如果您的设备是植根和家庭除外仍不能使用的键，请更新苏二进制和超级用户apk文件。
如果您无法卸载
你需要先禁用屏幕关闭功能。要禁用，请设置/位置secuirty /设备管理员从列表中删除按钮救主。
主题贡献列表：
（1）默认（XDA成员斯蒂芬）
（2）升级Froyo（XDA成员HLVL）
（3）的Sense UI（XDA成员internauta2000）
（4）蜂窝（XDA成员的SecureCRT）
（5）笔的姜（XDA成员钢笔和梦想）
（6）笔的蜂窝（XDA成员钢笔和梦想）
（7）笔的Sense UI（XDA成员钢笔和梦想）
（8）对比度为E-INK（XDA成员OMGWTF_BBQ又名柏林斯基）
（9）为新城E-INK（XDA成员OMGWTF_BBQ又名柏林斯基）
（10）对细微E-INK（XDA成员OMGWTF_BBQ又名柏林斯基）
（11）K3 ICS（XDA成员kam333）
（12）K3蜂窝（XDA成员kam333）
（13）拉吉夫的的Windows RT（XDA成员拉吉夫）
[此应用程序需要因为以下权限]
☆获取任务：需要显示最近的应用程序
☆VIBRATE：对于肝反馈
☆INTERNET：对于广告和快捷与互联网行动
☆接入网络：对于广告
☆MAKE CALL：对于直接拨号快捷键
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