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我创建了一个列表视图，其中有1个图像和2个文本。 但在输出中，列表视图仅显示第二个文本视图数据。第一个textview是空白的。列表视图项目只显示一个文本视图数据-iPad
这是我的listview的单项布局。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="55dp"
android:orientation="horizontal"
android:background="#ffffff">
<!-- icon -->
<ImageView
android:id="@+id/item_icon"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_alignParentLeft="true"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="10dp"
android:src="@drawable/icon"
/>
<!-- title -->
<TextView
android:id="@+id/item_title"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="hello"
android:layout_marginTop="13dp"
android:textSize="18dp" />
<TextView
android:id="@+id/item_counter"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_marginRight="8dp"
android:layout_marginTop="10dp"
android:text="1"
android:background="@drawable/counter"
android:gravity="center"
android:textColor="#FFFFFF"
android:textSize="12sp"
android:textStyle="bold" />
<!-- counter -->
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/arrow"
android:layout_centerVertical="true"
android:layout_marginTop="14dp"
android:id="@+id/arrow"/>
这里是数据模型代码：
public class DataModel {
String name;
String counter;
public DataModel(String name,String counter) {
this.name=name;
this.counter=counter;
}
public String getName() { return name;}
public String getCounter() {
return counter;
}
}
这里是CustomAdapter.java
public class CustomAdapter extends ArrayAdapter<DataModel> {
private ArrayList<DataModel> dataSet;
Context mContext;
// View lookup cache
private static class ViewHolder {
TextView txtName;
TextView txtCounter;
ImageView icon;
}
public CustomAdapter(ArrayList<DataModel> data, Context context) {
super(context, R.layout.category_list, data);
this.dataSet = data;
this.mContext=context;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Get the data item for this position
DataModel dataModel = getItem(position);
// Check if an existing view is being reused, otherwise inflate the view
ViewHolder viewHolder; // view lookup cache stored in tag
if (convertView == null) {
viewHolder = new ViewHolder();
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(R.layout.category_list, parent, false);
viewHolder.txtName = (TextView) convertView.findViewById(R.id.item_title);
viewHolder.txtCounter = (TextView) convertView.findViewById(R.id.item_counter);
viewHolder.icon = (ImageView) convertView.findViewById(R.id.item_icon);
convertView.setTag(viewHolder);
}
else
{
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.txtName.setText(dataModel.getName());
viewHolder.txtCounter.setText(dataModel.getCounter());
// Return the completed view to render on screen
return convertView;
}
}
MainActivity.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById();
clickListeners();
listView=(ListView)findViewById(R.id.caregoryList);
dataModels= new ArrayList<>();
dataModels.add(new DataModel("Banana Bread", " 9"));
dataModels.add(new DataModel("Cupcake", "9"));
dataModels.add(new DataModel("Donut","9"));
dataModels.add(new DataModel("Eclair", "9"));
dataModels.add(new DataModel("Froyo", "0"));
dataModels.add(new DataModel("Gingerbread", "0"));
dataModels.add(new DataModel("Honeycomb","1"));
dataModels.add(new DataModel("Ice Cream Sandwich", "1"));
dataModels.add(new DataModel("Jelly Bean", "2"));
dataModels.add(new DataModel("Kitkat", "3"));
dataModels.add(new DataModel("Lollipop","4"));
adapter= new CustomAdapter(dataModels,getApplicationContext());
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
DataModel dataModel= dataModels.get(position);
Snackbar.make(view, dataModel.getName()+"\n"+dataModel.getName()+" API: "+dataModel.getCounter(), Snackbar.LENGTH_LONG)
.setAction("No action", null).show();
}
});
因此，在运行此代码后，listview仅显示第二个计数器文本。第一个textview将显示为空白。
你的第一个textview的'layout_width'是'0dp' – zed
但我添加了layout_weight –
是你的问题解决了吗？ – tahsinRupam