ClassCastException遇到这个错误找了好久都没找到 求大神帮帮忙

[我守一座空城丶]

07-20 15:59:13.114: E/AndroidRuntime(14468): FATAL EXCEPTION: main
07-20 15:59:13.114: E/AndroidRuntime(14468): java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.GridView.onMeasure(GridView.java:941)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.View.measure(View.java:8462)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3231)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1021)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:705)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.LinearLayout.onMeasure(LinearLayout.java:315)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.View.measure(View.java:8462)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1447)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.View.measure(View.java:8462)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:581)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:365)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.View.measure(View.java:8462)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3231)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.FrameLayout.onMeasure(FrameLayout.java:254)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.View.measure(View.java:8462)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.LinearLayout.measureVertical(LinearLayout.java:535)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.LinearLayout.onMeasure(LinearLayout.java:313)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.View.measure(View.java:8462)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:3231)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.widget.FrameLayout.onMeasure(FrameLayout.java:254)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.View.measure(View.java:8462)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.ViewRoot.performTraversals(ViewRoot.java:861)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.view.ViewRoot.handleMessage(ViewRoot.java:1882)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.os.Handler.dispatchMessage(Handler.java:99)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.os.Looper.loop(Looper.java:130)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at android.app.ActivityThread.main(ActivityThread.java:3701)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at java.lang.reflect.Method.invokeNative(Native Method)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at java.lang.reflect.Method.invoke(Method.java:507)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:624)
07-20 15:59:13.114: E/AndroidRuntime(14468): 	at dalvik.system.NativeStart.main(Native Method)

我在ViewPager里加了两个LinearLayout的布局文件，这个布局文件里只有一个GridView
每个GridView的Item只有一个TextView，我是在Adapter里new了一个LinearLayout再在LinearLayout
里加这个TextView。

if (convertView==null) {
			LinearLayout layout = new LinearLayout(context);
			layout.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
			TextView txtView  = new TextView(context);

			txtView.setText(nameArray[position]);
			txtView.setCompoundDrawables(null, context.getResources().getDrawable(R.drawable.main_tab_ajgl), null, null);
			layout.addView(txtView);
			convertView = layout; 
		}
		return convertView;

这是怎么一回事。求大神帮帮忙