Android工具類之螢幕處理

public class screenutil 

/**將dip或dp值轉換為px值，保證尺寸大小不變*/
public static int dip2px(context context, float dipvalue) 
/**將px值轉換為sp值，保證文字大小不變*/
public static int px2sp(context context, float pxvalue) 
/**將sp值轉換為px值，保證文字大小不變*/
public static int sp2px(context context, float spvalue) 
/**螢幕寬度（畫素）*/
public static int getwindowwidth(activity context) 
/**螢幕高度（畫素）*/
public static int getwindowheight(activity context) 
/*** 獲得狀態列的高度
** @param context
* @return 狀態列高度
*/public static int getstatusheight(context context) catch (exception e) 
return statusheight;
}/**
* 螢幕解析度
** @param mcontext
* @return 螢幕解析度資訊
*/public static screeninfo getscreeninfo(context mcontext) catch (exception ignored) 
}// includes window decorations (statusbar bar/menu bar)
if (build.version.sdk_int >= build.version_codes.jelly_bean_mr1) catch (exception ignored) 
}result.widthpixels = widthpixels;
result.heightpixels = heightpixels;
result.screenrealmetrics = widthpixels + "x" + heightpixels;
result.density = metrics.density;
result.density_default = displaymetrics.density_default;
result.densitydpi = metrics.densitydpi;
result.densitydpistr = metrics.densitydpi + " dpi";
result.scaleddensity = metrics.scaleddensity;
result.xdpi = metrics.xdpi;
result.ydpi = metrics.ydpi;
result.size = (math.sqrt(math.pow(widthpixels, 2) + math.pow(heightpixels, 2)) / metrics.densitydpi);
result.sizestr = string.format("%.2f", result.size);
return result;
}public static listgetgpufreqvolt() 
br.close();
} catch (ioexception e) 
return result;
}/**
* 螢幕資訊物件
*/public static class screeninfo ';}}
}

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