在Adapter中运行时添加TextView

时间:2016-06-17 11:36:26

标签: java android

追加数组中的每条消息

  

m.getGenre()

作为带有TextView的新消息,对于数组中的每个消息,我想为它创建TextView并附加

这里面是CustomListAdapter我希望在数组中循环并将数组中的每个项目附加为新的TextView

public class CustomListAdapter extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<notofication> movieItems;
private final Context context;


public CustomListAdapter(Activity activity, List<notofication> movieItems,Context c) {
    this.activity = activity;
    this.movieItems = movieItems;
    this.context = c;
}

@Override
public int getCount() {
    return movieItems.size();
}

@Override
public Object getItem(int location) {
    return movieItems.get(location);
}

@Override
public long getItemId(int position) {
    return position;
}

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

    if (inflater == null)
        inflater = (LayoutInflater) activity
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    if (convertView == null)
        convertView = inflater.inflate(R.layout.list_row, null);


    TextView title = (TextView) convertView.findViewById(R.id.title);
    TextView rating = (TextView) convertView.findViewById(R.id.rating);
    TextView genre = (TextView) convertView.findViewById(R.id.genre);
    TextView year = (TextView) convertView.findViewById(R.id.releaseYear);

    // getting movie data for the row
    final notofication m = movieItems.get(position);







    // title
    title.setText(m.getTitle());



    // rating
    rating.setText(String.valueOf(m.getRating()));


    String genreStr = "";
    for (String str : m.getGenre()) {
       //append every str as new textView
    }


    // release year
    year.setText(m.getYear());

    return convertView;
}

}

现在结果将是这样的(它的例子)

enter image description here

如何为每张邮件制作新的textView

enter image description here

这是我的代码

    String genreStr = "";
    for (String str : m.getGenre()) {
       //append every str as new textView
    }

但我不知道如何使新的TextView adn将其附加到CustomAdapter

2 个答案:

答案 0 :(得分:2)

您可以通过

以编程方式创建TextView
TextView textView=new TextView(context);

要将其添加为列表视图项,我建议您在list_row XML

中创建一个持有者
<LinearLayout
     android:id="@+id/holder"
     android:orientation="vertical"
     android:width="match_parent"
     android:height="wrap_content"/>

然后将文本视图附加到它。

 LinearLayout ll=(LinearLayout)convertView.findViewById(R.id.holder);

 for(String genre:m.getGenre()){
    TextView tv=new TextView(context);
    LinearLayout.LayoutParams params=new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT);
    tv.setLayoutParams(params);
    tv.setText(genre);
    //set a dummy color to check whether views are added
    tv.setBackgroundColor(Color.RED);
    tv.setTextColor(Color.BLACK);
    //set more styles to the text view if you want
    ll.addView(tv);
}

答案 1 :(得分:1)

使用此示例

而不是........

if (false) {
    include 'foo.php';
}

使用此

TextView genre = (TextView) convertView.findViewById(R.id.genre);

注意:-in xml将id类型的TextView更改为线性布局,方向垂直。

LinearLayout mgenre = (LinearLayout) convertView.findViewById(R.id.genre);

享受编码...........