flutter_package / flutter_screenutil

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李卓原
9b373ecb 1 parent 9c471c35

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1 -/*  
2 - * Created by 李卓原 on 2018/9/20.  
3 - * email: zhuoyuan93@gmail.com  
4 - * 设计稿设备尺寸 1080 * 1920 px  
5 - */  
6 -  
7 -import 'dart:ui';  
8 -  
9 -class ScreenUtil {  
10 - static ScreenUtil instance;  
11 -  
12 - //设计稿的设备尺寸修改 (请修改成你的设计稿的尺寸)  
13 - static const designWidth = 1080;  
14 - static const designHeight = 1920;  
15 -  
16 - //设备的像素密度  
17 - static double pixelRatio = window.devicePixelRatio;  
18 -  
19 - //当前设备宽度 px  
20 - static double screenWidth = window.physicalSize.width;  
21 -  
22 - //当前设备高度 px  
23 - static double screenHeight = window.physicalSize.height;  
24 -  
25 - //状态栏高度 刘海屏会更高  
26 - static double StatusBarHeight = window.padding.top;  
27 -  
28 - //底部安全区距离  
29 - static double BottomBarHeight = window.padding.bottom;  
30 -  
31 - //相对于设计稿放大的倍数  
32 - var scaleWidth = screenWidth / designWidth / pixelRatio;  
33 - var scaleHeight = screenHeight / designHeight / pixelRatio;  
34 -  
35 - static ScreenUtil getInstance() {  
36 - if (instance == null) {  
37 - instance = new ScreenUtil();  
38 - }  
39 - return instance;  
40 - }  
41 -  
42 - /**  
43 - * 根据设计稿的设备宽度适配  
44 - * 高度也根据这个来做适配可以保证不变形  
45 - */  
46 - setWidth(int width) => width * scaleWidth;  
47 -  
48 - /**  
49 - * 根据设计稿的设备高度适配  
50 - * 当发现设计稿中的一屏显示的与当前样式效果不符合时,  
51 - * 或者形状有差异时,高度适配建议使用此方法  
52 - * 高度适配主要针对想根据设计稿的一屏展示一样的效果  
53 - */  
54 - setHeight(int height) => height * scaleHeight;  
55 -} 1 +/*
  2 + * Created by 李卓原 on 2018/9/24.
  3 + * email: zhuoyuan93@gmail.com
  4 + * 设计稿设备尺寸默认为 1080 * 1920 px
  5 + */
  6 +
  7 +import 'dart:ui';
  8 +
  9 +class ScreenUtil {
  10 + //设计稿的设备尺寸修改 (请修改成你的设计稿的尺寸)
  11 + int designWidth;
  12 + int designHeight;
  13 + static ScreenUtil instance;
  14 +
  15 + ScreenUtil({int width, int height}) {
  16 + designWidth = width;
  17 + designHeight = height;
  18 + }
  19 +
  20 + static ScreenUtil getInstance() {
  21 + if (instance == null) {
  22 + instance = new ScreenUtil(width: 1080, height: 1920);
  23 + }
  24 + return instance;
  25 + }
  26 +
  27 + //设备的像素密度
  28 + static double pixelRatio = window.devicePixelRatio;
  29 +
  30 + //当前设备宽度 px
  31 + static double screenWidth = window.physicalSize.width;
  32 +
  33 + //当前设备高度 px
  34 + static double screenHeight = window.physicalSize.height;
  35 +
  36 + //状态栏高度 刘海屏会更高
  37 + static double statusBarHeight = window.padding.top;
  38 +
  39 + //底部安全区距离
  40 + static double bottomBarHeight = window.padding.bottom;
  41 +
  42 + //相对于设计稿放大的倍数
  43 + double get scaleWidth =>
  44 + screenWidth / ScreenUtil.getInstance().designWidth / pixelRatio;
  45 +
  46 + double get scaleHeight =>
  47 + screenHeight / ScreenUtil.getInstance().designHeight / pixelRatio;
  48 +
  49 + /**
  50 + * 根据设计稿的设备宽度适配
  51 + * 高度也根据这个来做适配可以保证不变形
  52 + */
  53 + setWidth(int width) => width * scaleWidth;
  54 +
  55 + /**
  56 + * 根据设计稿的设备高度适配
  57 + * 当发现设计稿中的一屏显示的与当前样式效果不符合时,
  58 + * 或者形状有差异时,高度适配建议使用此方法
  59 + * 高度适配主要针对想根据设计稿的一屏展示一样的效果
  60 + */
  61 + setHeight(int height) => height * scaleHeight;
  62 +}