How to write a TextView in a determined coordinates of the screen? (frame layout)

Question

I have a app that shows the camera view on the screen on a FrameLayout. The screen is in fixed LandSape mode.

I need to write a textView with dinamically determined coordinates of the screen. The coordinates are determined in percentages, for example:

write the textview on the coorinates x=80% of the screen & y=20% of the screen. write the textview on the coorinates x=35% of the screen & y=55% of the screen.

how to do it? i allready have the percentages, i only need to know how to use them to write the textview on the desired position of the frameLayout

code examples are welcome

thanks

score 1 · Accepted Answer · edited May 23 '17 at 12:03

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You might want to add an AbsoluteLayout overlay, calculate the absolute position on the screen using screen dimensions and set the position of the view accordingly.

Edit

Since the AbsoluteLayout is deprecated, you can use the following technique to position the text in a RelativeLayout:

text = (TextView) findViewById(R.id.text);

RelativeLayout.LayoutParams position = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

position.leftMargin = 20;
position.topMargin  = 40;

text.setLayoutParams(position);

edited May 23 '17 at 12:03

Community

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answered Sep 29 '11 at 07:27

LambergaR

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absoluteLayout is deprecated :/ FrameLayout is the layout that replaces absoluteLayout, and i am allready using FrameLayout. – NullPointerException Sep 29 '11 at 07:28
Huh :) You might consider just setting the margin of the view? – LambergaR Sep 29 '11 at 07:31
How can i do it? i tryed with setPadding, but it needs 4 values, i am absoluty sure that this is not the fair way to do it – NullPointerException Sep 29 '11 at 07:36
Why would you need 4 values? Just set paddingLeft and paddingTop in a view overlaying the camera view (would recommend using RelativeLayout for that). I'm pretty sure it works – LambergaR Sep 29 '11 at 07:38
does not exist a setPaddingLeft method for textView... only setPadding, and needs 4 values – NullPointerException Sep 29 '11 at 07:42
I think there's a leftMargin and topMargin in LayoutParams – LambergaR Sep 29 '11 at 07:46
what?, i have to put layoutParams into a textview? did you have code example for that? – NullPointerException Sep 29 '11 at 07:48
ok, it doesn't works, the textview isn't repainted on the dinamically set coordinates, i tryed with: "poi.setLayoutParams(new LayoutParams((int)(w*(xCoordPercent/100)), h/2));" – NullPointerException Sep 29 '11 at 07:51

How to write a TextView in a determined coordinates of the screen? (frame layout)

1 Answers1