60 lines
1.5 KiB
Plaintext
60 lines
1.5 KiB
Plaintext
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package com.novelbook.android.utils;
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import android.app.Activity;
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import android.content.Context;
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import android.util.DisplayMetrics;
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public class DisplayUtils {
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/**
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* 将px值转换为dp值
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*/
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public static int px2dp(Context context, float pxValue) {
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final float scale = context.getResources().getDisplayMetrics().density;
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return (int) (pxValue / scale + 0.5f);
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}
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/**
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* 将dp值转换为px值
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*/
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public static int dp2px(Context context, float dpValue) {
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final float scale = context.getResources().getDisplayMetrics().density;
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return (int) (dpValue * scale + 0.5f);
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}
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/**
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* 将px值转换为sp值
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*/
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public static int px2sp(Context context, float pxValue) {
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final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
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return (int) (pxValue / fontScale + 0.5f);
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}
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/**
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* 将sp值转换为px值
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*/
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public static int sp2px(Context context, float spValue) {
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final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
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return (int) (spValue * fontScale + 0.5f);
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}
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/**
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* 获取屏幕宽度
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*/
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public static int getScreenWidthPixels(Activity context) {
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DisplayMetrics metric = new DisplayMetrics();
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context.getWindowManager().getDefaultDisplay().getMetrics(metric);
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return metric.widthPixels;
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}
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/**
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* 获取屏幕高度
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*/
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public static int getScreenHeightPixels(Activity context) {
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DisplayMetrics metric = new DisplayMetrics();
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context.getWindowManager().getDefaultDisplay().getMetrics(metric);
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return metric.heightPixels;
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}
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}
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