如何在屏幕上动态移动一个TextView？ （的FrameLayout） [英] How to move a Textview dynamically on the screen? (framelayout)

问题描述

我有一个应用程序，显示了一个的FrameLayout屏幕上的摄像机视图。屏幕是固定横向模式。

我需要编写与屏幕的动态确定坐标，一个TextView。坐标中的百分比测定，例如

写的TextView上coorinates屏幕和放大器的X = 80％; Y =屏幕的20％。写的TextView上coorinates屏幕和放大器的X = 35％; Y =屏幕的55％。

该怎么办呢？我已经有了百分比，我只需要知道如何使用它们来写的TextView上的FrameLayout

的所需位置

code事例令人鼓舞

我试着用这个，但没有作品，TextView的不动：

  TextView的POI .....等等等等
poi.setLayoutParams（新的LayoutParams（（int）的（W *（xCoordPercent / 100））中，h / 2））;
 

感谢

解决方案

  MarginLayoutParams PARAMS =（MarginLayoutParams）poi.getLayoutParams（）;
params.leftMargin = 80;
//此处100表示​​100像素，而不是80％的父视图的宽度
//你可能需要计算的百分比转换为像素。
params.topMargin = 50;
poi.setLayoutParams（PARAMS）;
 

这可能会有帮助。

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

I need to write a textView with dynamically 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 already 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

i tried with this but doesn't works, the textview isn't moved:

TextView poi..... etc etc
poi.setLayoutParams(new LayoutParams((int)(w*(xCoordPercent/100)), h/2));

thanks

解决方案

MarginLayoutParams params=(MarginLayoutParams )poi.getLayoutParams();
params.leftMargin=80;
//here 100 means 100px,not 80% of the width of the parent view
//you may need a calculation to convert the percentage to pixels. 
params.topMargin=50;
poi.setLayoutParams(params);

This may help.

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