相关疑难解决方法(0)

        setContentView(R.layout.main2);

        out= new ArrayList<TextView>();
        llay =(RelativeLayout) findViewById(R.id.displayPoll);

       RelativeLayout.LayoutParams lparams =  new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
       RelativeLayout.LayoutParams lparams1 =  new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
        LayoutParams lpar = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        Log.v("my","rched");


        out.add(new TextView(this));
        out.get(0).setLayoutParams(lpar);
        out.get(0).setId(1);
        lparams1.addRule(RelativeLayout.ALIGN_BOTTOM,R.id.user_name);
        llay.setLayoutParams(lparams1);
        out.get(0).setText("Title "+0+"\n\n\n\n\n\n");
        my_poll.this.llay.addView(out.get(0));

            for (int i = 1; i < 3;i++)//mJsonArray.length(); i++) 
            {
                out.add(new TextView(this));

                out.get(i).setLayoutParams(lpar);
                out.get(i).setId(i+1);
                Log.v("my","hey : "+out.get(i-1).getId());

                lparams.addRule(RelativeLayout.BELOW,out.get(i-1).getId());
                llay.setLayoutParams(lparams);

                out.get(i).setText("Title "+i+"\n\n\n\n\n\n");

                llay.addView(out.get(i));

            }

                Log.v("my","rasasched");

通过执行程序,我收到此错误

04-06 20:30:49.372: E/AndroidRuntime(1093): FATAL EXCEPTION: main
04-06 20:30:49.372: E/AndroidRuntime(1093): java.lang.ClassCastException: android.widget.RelativeLayout$LayoutParams
04-06 20:30:49.372: E/AndroidRuntime(1093):     at android.widget.ScrollView.onMeasure(ScrollView.java:301)
04-06 20:30:49.372: E/AndroidRuntime(1093):     at …