how to count how many times I clicked my image button * LUA * - lua

Question

I've created hello world text and a clickable button. When I click the button the hello world jumps around randomly.
The problem: I don't know how to get my program to count how many times i've clicked the button.
My progress:
local myHeight = display.contentHeight
local myWidth = display.contentWidth
local topRightHeight = display.newText ("Height "..myHeight, 300 , 40 ,nil,15)
local topRightWidth = display.newText ("Width "..myWidth, 300,60,nil,15)
local redButton = display.newImage ("button.png",0,0)
redButton.x = display.contentWidth -60
redButton.y = display.contentHeight -62.5
local textObj = display.newText ("Hello World",0,0,native.systemFont,18)
textObj: setFillColor(0,250,0)
textObj.x = 40
textObj.y = 30
local number = 0
number = display.newText (number, 30, 30 , native.systemFont, 25)
function moveButtonRandom (event)
textObj.x = math.random(50, display.contentWidth -50)
textObj.y = math.random(50, display.contentHeight -50)
end
redButton: addEventListener ("tap", moveButtonRandom)

Answer 1

You can use flag of int type to count the number of times button clicked.
Initially set flag=0 and if button is clicked then inside onclick() method use flag=flag+1.

Answer 2

Now it works like a charm
display.setStatusBar(display.HiddenStatusBar)
local redButton = display.newImage ("button.png",0,0)
redButton.x = display.contentWidth - 60
redButton.y = display.contentHeight - 62.5
local textObj = display.newText("Hello World", 0, 0, native.systemFont, 18)
textObj:setFillColor(0, 250, 0)
textObj.x = 40
textObj.y = 30
local number = 0
local textField = display.newText(number, 30, 30, native.systemFont, 25)
local function moveButtonRandom(event)
textObj.x = math.random(50, display.contentWidth - 50)
textObj.y = math.random(50, display.contentHeight - 50)
number = number + 1
textField:removeSelf()
textField = display.newText(number, 30, 30, native.systemFont, 25)
end
redButton:addEventListener("tap", moveButtonRandom)

Answer 3

You can track the click on monitoring some flag in your clickListener for button. Maintain a flag increment it whenever you clicked on your button through clickListener. Some thing like this
intialize a variable let say int flagForButton = 0 in your activity
OnClickListener clickListener1 = new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
flagForButton++;
Toast.makeText(MarketSnap.this, String.valueOf(flagForButton), Toast.LENGTH_SHORT).show();
}
};
Set the clickListener on the button. Like this
yourbutton.setOnClickListener(clickListener1);
EDIT
While answering this question the question was tagged with Android. So i have put the code as above. But Now the question is edited and tagged as LUA. So the logic remain same you can increment the flagcount in clickListener Of the the button.

Answer 4

Update text number on every click. No need to delete it and create it again.
local number = 0
local textField = display.newText(number, 30, 30, native.systemFont, 25)
local function updateNumber(n)
textField.text = n
end
local function moveButtonRandom(event)
textObj.x = math.random(50, display.contentWidth - 50)
textObj.y = math.random(50, display.contentHeight - 50)
number = number + 1
UpdateNumber(number)
end
redButton:addEventListener("tap", moveButtonRandom)