Question

1 .Model.java

public class Model{

private int icon;
private String title;


private boolean isGroupHeader = false;

public Model(String title) {

    setGroupHeader(true);
}
public Model(int icon, String title) {
    super();
    this.setIcon(icon);
    this.setTitle(title);

}
public boolean isGroupHeader() {
    return isGroupHeader;
}
public void setGroupHeader(boolean isGroupHeader) {
    this.isGroupHeader = isGroupHeader;
}
public String getTitle() {
    return title;
}
public void setTitle(String title) {
    this.title = title;
}
public int getIcon() {
    return icon;
}
public void setIcon(int icon) {
    this.icon = icon;
}

 //gettters & setters...
 }

这是我的MyAdapter.java代码

 import java.util.ArrayList;
 import android.content.Context;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ImageView;
 import android.widget.TextView;

  public class MyAdapter extends ArrayAdapter<Model> {

    private final Context context;
    private final ArrayList<Model> modelsArrayList;

    public MyAdapter(Context context, ArrayList<Model> modelsArrayList) {

        super(context, R.layout.item1, modelsArrayList);

        this.context = context;
        this.modelsArrayList = modelsArrayList;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        // 1. Create inflater 
        LayoutInflater inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        // 2. Get rowView from inflater

        View rowView = null;
        if(!modelsArrayList.get(position).isGroupHeader()){
            rowView = inflater.inflate(R.layout.item1, parent, false);

            // 3. Get icon,title & counter views from the rowView
            ImageView imgView = (ImageView) rowView.findViewById(R.id.item_icon); 
            TextView titleView = (TextView) rowView.findViewById(R.id.item_title);


            // 4. Set the text for textView 
            imgView.setImageResource(modelsArrayList.get(position).getIcon());
            titleView.setText(modelsArrayList.get(position).getTitle());

        }
        else{
                rowView = inflater.inflate(R.layout.group_header_item, parent, false);
                TextView titleView = (TextView) rowView.findViewById(R.id.header);
                titleView.setText(modelsArrayList.get(position).getTitle());

        }

        // 5. retrn rowView
        return rowView;
    }}

这是我的MainActivity代码

public void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    // if extending Activity
    //setContentView(R.layout.activity_main);

    // 1. pass context and data to the custom adapter
    MyAdapter adapter = new MyAdapter(this, generateData());

    // if extending Activity 2. Get ListView from activity_main.xml
    //ListView listView = (ListView) findViewById(R.id.listview);

    // 3. setListAdapter
    //listView.setAdapter(adapter); if extending Activity
    setListAdapter(adapter);
}

private ArrayList<Model> generateData(){
    ArrayList<Model> models = new ArrayList<Model>();
    models.add(new Model("Group Title 1"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item"));
    models.add(new Model(R.drawable.app_icon,"Menu Item"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 3"));
    models.add(new Model("Group Title 2"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 1"));
    models.add(new Model(R.drawable.app_icon,"Menu Item 2"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 3"));
    models.add(new Model("Group Title 3"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 1"));
    models.add(new Model(R.drawable.app_icon,"Menu Item 2"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 3"));

    return models;
}}

我在项目中创建了一个自定义列表视图。如何使用图像和文本setonclick listener to whole raw。

我在为项目的不同部分创建单独的onClickListener时遇到问题。我的项目有图片和文字。我想要的是根据点击的那些开始不同的活动。

我该怎么做？

Answer 1

制作适配器工具View.OnClickListener并将其设置为TextView和ImageView，然后在实施的onClick中检查视图实例并执行不同的操作。

如果您想要更复杂的事情发生，就像不同行中的不同视图一样，将position tag设置为您的视图，并在onClick

中阅读

当我说设置位置作为标记我的意思是imgView.setTag(position)＆amp; titleView.setTag(position)通过这种方式，您可以了解onClick中的位置，并成为我的客人，尝试使用大型样本集。这是一个jank / lag免费实现。通常作为经验法则，您必须避免在Adapter's getView()中实例化对象，因为GC可能会使主线程无响应。

Answer 2

在适配器的getView（）方法中为ImageView和textView实现clickListener。

Answer 3

您必须执行以下操作：

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    // 1. Create inflater 
    LayoutInflater inflater = (LayoutInflater) context
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

    // 2. Get rowView from inflater

    // I edited here
    final Model _model = modelsArrayList.get(position);

    View rowView = null;
    if(!_model.isGroupHeader()){
        rowView = inflater.inflate(R.layout.item1, parent, false);

        // 3. Get icon,title & counter views from the rowView
        ImageView imgView = (ImageView) rowView.findViewById(R.id.item_icon); 
        TextView titleView = (TextView) rowView.findViewById(R.id.item_title);


        // 4. Set the text for textView 
        imgView.setImageResource(modelsArrayList.get(position).getIcon());
        titleView.setText(modelsArrayList.get(position).getTitle());

        // Set the listeners
        imgView.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {

                if(_model is what you want){

                    //call your activity

                }

            }

        });

        titleView.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {

                if(_model is what you want){

                    //call your activity

                }

            }

        });

    }
    else{
            rowView = inflater.inflate(R.layout.group_header_item, parent, false);
            TextView titleView = (TextView) rowView.findViewById(R.id.header);
            titleView.setText(modelsArrayList.get(position).getTitle());

    }

    // 5. retrn rowView
    return rowView;
}

不要忘记在{x}

中的android:clickable="true"添加ImageView

Answer 4

多数民众赞成。

只需创建ListView的XML文件（此处为main.xml）

并设置ListView（这里是lv1）

请记住：如果您extends Activity，请不要忘记setContentView 如果您想extends ListActivity不要使用setcontentView

public class starting extends Activity {

public void onCreate(Bundle icicle) {
    super.onCreate(icicle);

    // if extending Activity
    setContentView(R.layout.main);

    // 1. pass context and data to the custom adapter
    MyAdapter adapter = new MyAdapter(this, generateData());

    // if extending Activity 2. Get ListView from activity_main.xml
    ListView listView = (ListView) findViewById(R.id.lv1);

    // 3. setListAdapter
    listView.setAdapter(adapter);// if extending Activity
    //setListAdapter(adapter);
    listView.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                long arg3) {
            // TODO Auto-generated method stub
            switch ( arg2 )
            {
            case 0 : Toast.makeText(getApplicationContext(), "fst opt", Toast.LENGTH_SHORT).show();
            break;
            case 1 : Toast.makeText(getApplicationContext(), "sec opt", Toast.LENGTH_SHORT).show();
            break;
            case 2 : Toast.makeText(getApplicationContext(), "thrd opt", Toast.LENGTH_SHORT).show();
            break;
            }
        }
    });
}

private ArrayList<Model> generateData(){
    ArrayList<Model> models = new ArrayList<Model>();
    models.add(new Model("Group Title 1"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item"));
    models.add(new Model(R.drawable.app_icon,"Menu Item"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 3"));
    models.add(new Model("Group Title 2"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 1"));
    models.add(new Model(R.drawable.app_icon,"Menu Item 2"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 3"));
    models.add(new Model("Group Title 3"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 1"));
    models.add(new Model(R.drawable.app_icon,"Menu Item 2"));
    models.add(new Model(R.drawable.ic_launcher,"Menu Item 3"));

    return models;
}
}

Answer 5

您可以为行视图设置onclick侦听器。

rowView.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View arg0) {
                    // TODO Auto-generated method stub

                }
            });

如何在自定义ListView上设置onitemclick侦听器，包括图像和文本？

5 个答案: