dp,px,sp android间的转换

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   public static int dp2px(int dp,Context context) {        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp,                context.getResources().getDisplayMetrics());    }    public static int px2dip(Context context, float pxValue) {        final float scale = context.getResources().getDisplayMetrics().density;        return (int) (pxValue / scale + 0.5f);    }    public static int dip2px(Context context, float dipValue) {        final float scale = context.getResources().getDisplayMetrics().density;        return (int) (dipValue * scale + 0.5f);    }    public static int px2sp(Context context, float pxValue) {        final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;        return (int) (pxValue / fontScale + 0.5f);    }    public static int sp2px(Context context, float spValue) {        final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;        return (int) (spValue * fontScale + 0.5f);    }

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