推送对接，分辨率适配

niceimageview/src/main/java/com/shehuan/niv/Utils.java

@@ -0,0 +1,11 @@
+package com.shehuan.niv;
+
+
+import android.content.Context;
+
+public class Utils {
+    public static int dp2px(Context context, float dipValue) {
+        final float scale = context.getResources().getDisplayMetrics().density;
+        return (int) (dipValue * scale + 0.5f);
+    }
+}