60 lines
1.8 KiB
C#
60 lines
1.8 KiB
C#
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using UnityEngine;
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namespace WZ
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{
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public class PX2DP
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{
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#if UNITY_ANDROID && !UNITY_EDITOR
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private static AndroidJavaClass _unityPlayerClass;
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private static AndroidJavaObject _currentActivity;
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private static AndroidJavaObject _resources;
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private static AndroidJavaObject _displayMetrics;
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// 初始化Android相关类引用
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private static void Init()
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{
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if (_unityPlayerClass == null)
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{
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_unityPlayerClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
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_currentActivity = _unityPlayerClass.GetStatic<AndroidJavaObject>("currentActivity");
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_resources = _currentActivity.Call<AndroidJavaObject>("getResources");
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_displayMetrics = _resources.Call<AndroidJavaObject>("getDisplayMetrics");
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}
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}
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#endif
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/// <summary>
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/// Android平台dp转px
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/// </summary>
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/// <param name="dp">需要转换的dp值</param>
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/// <returns>转换后的px值</returns>
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public static int DpToPx(float dp)
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{
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#if UNITY_ANDROID && !UNITY_EDITOR
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Init();
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float scale = _displayMetrics.Get<float>("density");
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return (int)(dp * scale + 0.5f);
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#else
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// 非Android平台返回近似值
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return Mathf.RoundToInt(dp * Screen.dpi / 160f);
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#endif
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}
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/// <summary>
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/// Android平台px转dp
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/// </summary>
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/// <param name="px">需要转换的px值</param>
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/// <returns>转换后的dp值</returns>
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public static int PxToDp(float px)
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{
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#if UNITY_ANDROID && !UNITY_EDITOR
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Init();
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float scale = _displayMetrics.Get<float>("density");
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return (int)(px / scale + 0.5f);
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#else
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// 非Android平台返回近似值
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return Mathf.RoundToInt(px * 160f / Screen.dpi);
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#endif
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}
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}
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}
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