我正在将给定图形的 px 转换为 dp。通过文档我注意到 1dp = 3px 对于 480ppi 屏幕(xxhdpi)。
我正在 Redmi Note3 上进行测试,它的分辨率约为 403 ppi。
我的设计师为我提供了以像素为单位的边距。我应该使用 1:3 的比例将它们转换为像素还是应该不同
最佳答案
/**
* This method converts dp unit to equivalent pixels, depending on device density.
*
* @param dp A value in dp (density independent pixels) unit. Which we need to convert into pixels
* @param context Context to get resources and device specific display metrics
* @return A float value to represent px equivalent to dp depending on device density
*/
public static float convertDpToPixel(float dp, Context context){
Resources resources = context.getResources();
DisplayMetrics metrics = resources.getDisplayMetrics();
float px = dp * ((float)metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT);
return px;
}
/**
* This method converts device specific pixels to density independent pixels.
*
* @param px A value in px (pixels) unit. Which we need to convert into db
* @param context Context to get resources and device specific display metrics
* @return A float value to represent dp equivalent to px value
*/
public static float convertPixelsToDp(float px, Context context){
Resources resources = context.getResources();
DisplayMetrics metrics = resources.getDisplayMetrics();
float dp = px / ((float)metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT);
return dp;
}
有关更多信息,请查看此 SOF 帖子 Converting pixels to dp
关于android - 基于ppi的像素到dp转换器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39265732/