转换像素的分辨率进行MDPI和HDPI屏幕 [英] Converting pixels to dpi for mdpi and hdpi screens

问题描述

我用这code，我已经在另一个线程这是工作的罚款于mdpi屏幕发现：

I am using this code that I have found on another thread which is working fine on mdpi screens:

public static float convertDpToPixel(float dp,Context context){
        Resources resources = context.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        float px = dp * (metrics.densityDpi/160f);
        return px;
    }

public static float convertPixelsToDp(float px,Context context){
        Resources resources = context.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        float dp = px / (metrics.densityDpi /160f);
        return dp;

    }

在对华电国际的屏幕努力增加文字大小时文字大小跳转使用。我，因为它是划分densityDpi在使用硬codeD 160F假设它？是否有任何动态的方式，以确定其是否为160dpi或240dpi？

When using it on hdpi screens the text size jumps when trying to increase the text size. I am assuming its because it is using the hardcoded 160f when dividing the densityDpi? Is there any dynamic way to determine whether it is 160dpi or 240dpi?

推荐答案

试试这个方法：

public float dpToPx(float dp, Context context) {
    float density = context.getResources().getDisplayMetrics().density;
    return dp * density;
}

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