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我正处于应用程序的后期阶段，我想知道如何让 Inneractive 广告发挥作用。我试过他们的教程，它没有显示广告。这是代码

AndroidListViewActivity.java：

package com.androidhive.androidlistview;

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import com.inneractive.api.ads.InneractiveAd;
import com.inneractive.api.ads.InneractiveAdListener;
import com.androidhive.androidlistview.AndroidListViewActivity;

import java.util.Hashtable;
import android.view.Gravity;
import android.widget.LinearLayout;


public class AndroidListViewActivity extends ListActivity {

    LinearLayout linear;
    InneractiveAd addedIaAd;
    InneractiveAd bannerAd;
    InneractiveAd rectangleAd;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


        linear = new LinearLayout(this);
        linear.setGravity(Gravity.CENTER_HORIZONTAL);
        linear.setOrientation(LinearLayout.VERTICAL);


        //adding banner ad - banner
        Hashtable<InneractiveAd.IaOptionalParams, String> adData = new Hashtable<InneractiveAd.IaOptionalParams, String>();
        adData.put(InneractiveAd.IaOptionalParams.Key_Keywords, "Entertainment");
        InneractiveAd.displayAd(AndroidListViewActivity.this, linear, "MyCompany_MyApp", InneractiveAd.IaAdType.Banner, 60,adData,(InneractiveAdListener) AndroidListViewActivity.this);   


        setContentView(linear);



        // storing string resources into Array
        String[] adobe_products = getResources().getStringArray(R.array.adobe_products);

        // Binding Array to ListAdapter
        this.setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, R.id.label, adobe_products));

        ListView lv = getListView();

        // listening to single list item on click
        lv.setOnItemClickListener(new OnItemClickListener() {
          public void onItemClick(AdapterView<?> parent, View view,
              int position, long id) {

              // selected item 
              String product = ((TextView) view).getText().toString();

              // Launching new Activity on selecting single List Item
              Intent i = new Intent(getApplicationContext(), SingleListItem.class);
              // sending data to new activity
              i.putExtra("product", product);
              startActivity(i);

          }
        });
    }
}

Singlelistitem.java：

package com.androidhive.androidlistview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;

public class SingleListItem extends Activity{
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.single_list_item_view);

        TextView txtProduct = (TextView) findViewById(R.id.product_label);

        Intent i = getIntent();
        // getting attached intent data
        String product = i.getStringExtra("product");
        // displaying selected product name
        txtProduct.setText(product);

    }
}

xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="adobe_products">
        <item>Adobe After Effects</item>
        <item>Adobe Bridge</item>
        <item>Adobe Dreamweaver</item>
        <item>Adobe Edge</item>
        <item>Adobe Fireworks</item>
        <item>Adobe Flash</item>
        <item>Adobe Photoshop</item>
        <item>Adobe Premiere</item>
        <item>Adobe Reader</item>
        <item>Adobe Illustrator</item>
    </string-array>
</resources>

来自 logcat 的错误：

java.lang.RuntimeException：无法启动活动 ComponentInfo{com.androidhive.androidlistview/com.androidhive.androidlistview.AndroidListViewActivity}：java.lang.ClassCastException：com.androidhive.androidlistview.AndroidListViewActivity 无法转换为 com.inneractive.api。 ads.InneractiveAdListener

程序中没有错误，但是当我在 Eclipse ADT 中运行应用程序时，它说应用程序已意外停止。谁能告诉我如何使内部活动广告横幅作为该程序列表视图中的列表项工作。

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