android - Get screen width and height in a Fragment

Question

If I extend activity in my app I can get width and height:

DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
int height = displaymetrics.heightPixels;
int wwidth = displaymetrics.widthPixels;

or

Display display = getWindowManager().getDefaultDisplay(); 
stageWidth = display.getWidth();
stageHeight = display.getHeigth();

But at present I extend fragment and I can't use the above code to get the width.

Answer 1

试试下面你修改过的代码

DisplayMetrics displaymetrics = new DisplayMetrics();
getActivity().getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
int height = displaymetrics.heightPixels;
int width = displaymetrics.widthPixels;

或者

Display display = getActivity().getWindowManager().getDefaultDisplay(); 
int stageWidth = display.getWidth();
int stageHeight = display.getHeight();

基本上你只需要在函数getActivity()之前放置（获取上下文） 。getWindowManager()

Answer 2

这将为您提供所需的内容，而无需上下文或视图：

import android.content.res.Resources;

int width = Resources.getSystem().getDisplayMetrics().widthPixels;

int height = Resources.getSystem().getDisplayMetrics().heightPixels;

Answer 3

此代码也适用于片段：

int width = getResources().getConfiguration().screenWidthDp;
int height = getResources().getConfiguration().screenHeightDp;

比较方向：

if(getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE){...}