光环助手V3.3优化需求汇总（20180614）(还有小部分未完成)

app/src/main/java/com/gh/common/util/PackageUtils.java

@@ -7,6 +7,7 @@ import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.Signature;
+import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.text.TextUtils;
@@ -273,6 +274,20 @@ public class PackageUtils {
         return null;
     }
 
+
+    /*
+     * 获取apk的版本
+     */
+    public static Drawable getIconByPackage(Context context, String packageName) {
+        try {
+            PackageManager packageManager = context.getApplicationContext().getPackageManager();
+            return packageManager.getApplicationIcon(packageName);
+        } catch (NameNotFoundException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
     /*
      * 获取所有已安装的软件的包名、版本(非系统应用)
      */