canvas绘图中的adMob 出错

android canvas

为了绘制设了几个独立的类，我想通过abMob实现，从game类中调用然后将activity作为参数传递。

public void drawAddMob(Activity a){ LinearLayout ll = new LinearLayout(a); ll.setPadding(0, 50, 0, 0); adView = new AdView(a, AdSize.BANNER, "a15140cd49b6e7b"); AdRequest request = new AdRequest(); adView.loadAd(request); adView.setVisibility(View.VISIBLE); ll.addView(adView); ll.draw(canvas); }

结果出错：

03-21 23:35:09.646: W/System.err(333): java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() 03-21 23:35:09.656: W/System.err(333): at com.google.ads.internal.AdWebView.<init> (SourceFile:69)