当使用arrayadapter

Question

我一直在使用创建一个ListView下面的教程链接点击某一行上找不到在列表视图索引或位置http://www.ezzylearning.com/tutorial.aspx?tid=1763429

的这一成果，活动列表如下图像现在

，我想通过点击单个行导航到不同的活动屏幕。我有导航到下一个屏幕的想法，但是我无法找到每一行的正确位置。我没有太多有关android的知识，所以如果太愚蠢，请将我的问题裸露出来。

虽然代码在上面的链接中可用，但我附加了.xml文件和.java。这里也是如此。

main.xml中

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="#FFFFFF"> 

    <ListView 
     android:id="@+id/listView1" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" /> 

</LinearLayout> 

listview_item_row.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="horizontal" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:padding="10dp"> 

    <ImageView android:id="@+id/imgIcon" 
     android:layout_width="wrap_content" 
     android:layout_height="fill_parent" 
     android:gravity="center_vertical" 
     android:layout_alignParentTop="true" 
     android:layout_alignParentBottom="true" 
     android:layout_marginRight="15dp" 
     android:layout_marginTop="5dp" 
     android:layout_marginBottom="5dp" /> 

    <TextView android:id="@+id/txtTitle" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:gravity="center_vertical" 
     android:layout_alignParentTop="true" 
     android:layout_alignParentBottom="true" 
     android:textStyle="bold" 
     android:textSize="22dp" 
     android:textColor="#000000" 
     android:layout_marginTop="5dp" 
     android:layout_marginBottom="5dp" /> 

</LinearLayout> 

Weather.java

public class Weather { 
    public int icon; 
    public String title; 
    public Weather(){ 
     super(); 
    } 

    public Weather(int icon, String title) { 
     super(); 
     this.icon = icon; 
     this.title = title; 
    } 
} 

WeatherAdapter.java

public class WeatherAdapter extends ArrayAdapter<Weather>{ 

    Context context; 
    int layoutResourceId;  
    Weather data[] = null; 

    public WeatherAdapter(Context context, int layoutResourceId, Weather[] data) { 
     super(context, layoutResourceId, data); 
     this.layoutResourceId = layoutResourceId; 
     this.context = context; 
     this.data = data; 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     View row = convertView; 
     WeatherHolder holder = null; 

     if(row == null) 
     { 
      LayoutInflater inflater = ((Activity)context).getLayoutInflater(); 
      row = inflater.inflate(layoutResourceId, parent, false); 

      holder = new WeatherHolder(); 
      holder.imgIcon = (ImageView)row.findViewById(R.id.imgIcon); 
      holder.txtTitle = (TextView)row.findViewById(R.id.txtTitle); 

      row.setTag(holder); 
     } 
     else 
     { 
      holder = (WeatherHolder)row.getTag(); 
     } 

     Weather weather = data[position]; 
     holder.txtTitle.setText(weather.title); 
     holder.imgIcon.setImageResource(weather.icon); 

     return row; 
    } 

    static class WeatherHolder 
    { 
     ImageView imgIcon; 
     TextView txtTitle; 
    } 
} 

MainActivity.java

public class MainActivity extends Activity { 

    private ListView listView1; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     Weather weather_data[] = new Weather[] 
     { 
      new Weather(R.drawable.weather_cloudy, "Cloudy"), 
      new Weather(R.drawable.weather_showers, "Showers"), 
      new Weather(R.drawable.weather_snow, "Snow"), 
      new Weather(R.drawable.weather_storm, "Storm"), 
      new Weather(R.drawable.weather_sunny, "Sunny") 
     }; 

     WeatherAdapter adapter = new WeatherAdapter(this, 
       R.layout.listview_item_row, weather_data); 


     listView1 = (ListView)findViewById(R.id.listView1); 

     View header = (View)getLayoutInflater().inflate(R.layout.listview_header_row, null); 
     listView1.addHeaderView(header); 

     listView1.setAdapter(adapter); 
    } 

任何帮助将不胜感激 感谢

Answer 1

您需要附加OnItemClickListener

listView1.setOnItemClickListener(new OnItemClickListener() { 
    @Override 
    public void onItemClick(AdapterView <?> adapterView, View view, int position, long id) { 
     // position is index of the row that was clicked 
    } 
}); 

Answer 2

哪里是listView1.setOnItemClickListener？你有没有设置setOnItemClickListener to listView1?.和下面的代码onItemClick有position。

listView1.setOnItemClickListener(new OnItemClickListener() { 
@Override 
public void onItemClick(AdapterView<?> parent, View view, int position,long id) { 

      } 
     }); 

Answer 3

你应该做这样的事情

listView1.setOnItemClickListener(new OnItemClickListener() { 
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) { //do something 
     } 
    }); 

Answer 4

使用setOnItemSelectedListener与列表http://developer.android.com/reference/android/widget/AdapterView.OnItemSelectedListener.html

listView1.addHeaderView(header); 
listView1.setAdapter(adapter); 

listView1.setOnItemSelectedListener(
    new OnItemSelectedListener() { 
     @Override 
     public void onItemSelected(
      AdapterView<?> parent, View view, int pos, long id 
     ) { 
      //where pos is your index 
     } 

     @Override 
     public void onNothingSelected(AdapterView<?> arg0) {} 

    } 
); 

Answer 5

试试这种方式...

listView1.setOnItemClickListener(new AdapterView.OnItemClickListener() { 

         @Override 
         public void onItemClick(AdapterView<?> arg0, View arg1, 
           int position, long arg3) { 


    Toast.makeText(context, position+"", Toast.LENGTH_LONG).show(); 

           Intent go_detail_Activity_Intent= new Intent(context,Target_Activity.class); 
           go_detail_Activity_Intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
           context.startActivity(go_detail_Activity_Intent); 


         } 
        }); 

我认为它可以帮助你。