通过luajava获取Android系统设置

Question

我试图在XPrivacyLua自定义钩子中获取系统设置的值。

Settings.Secure \ Android开发人员#getInt()

function after(hook, param)
    local result = param:getResult()
    if result == null or result:getItemCount() == 0 then
        return false
    end
    -- 
    local context = param:getApplicationContext()
    local cls = luajava.bindClass('android.provider.Settings$Secure')
    local isColorInverted = cls:getInt(context, cls:ACCESSIBILITY_DISPLAY_INVERSION_ENABLED)
    if isColorInverted == 1 then
        return true
    end
    --
    local fake = result:newPlainText('XPrivacyLua', 'Private')
    param:setResult(fake)
    return true
end

cls:ACCESSIBILITY_DISPLAY_INVERSION_ENABLED：尝试1:

local isColorInverted = cls:getInt(context, cls:ACCESSIBILITY_DISPLAY_INVERSION_ENABLED)
-- [string "script"]:9: function arguments expected

cls.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED 尝试2:

local isColorInverted = cls:getInt(context, cls.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED)
-- Exception:
-- org.luaj.vm2.LuaError: script:9 no coercible public method at org.luaj.vm2.LuaValue.error(SourceFile:1041)
-- ...
-- <full stack trace>

尝试3: ACCESSIBILITY_DISPLAY_INVERSION_ENABLED

local isColorInverted = cls:getInt(context, ACCESSIBILITY_DISPLAY_INVERSION_ENABLED)
-- Same as attempt 2

在luajava中获得ACCESSIBILITY_DISPLAY_INVERSION_ENABLED值的正确语法是什么？

Answer 1

我对getInt的第一个参数是错误的。

它需要一个ContentResolver，而我传递给它一个ApplicationContext。

下面是工作代码。

function after(hook, param)
    local result = param:getResult()
    if result == null or result:getItemCount() == 0 then
        return false
    end
    -- 
    local context = param:getApplicationContext()
    local cr = context:getContentResolver()
    local cls = luajava.bindClass('android.provider.Settings$Secure')
    local isColorInverted = cls:getInt(cr, ACCESSIBILITY_DISPLAY_INVERSION_ENABLED)
    if isColorInverted == 1 then
        return true
    end
    --
    local fake = result:newPlainText('XPrivacyLua', 'Private')
    param:setResult(fake)
    return true
end