Question

I am trying to get value from EditText in a listView .How to get value from EditText in a listView??I'm new in android programming, someone can help me?

i have a structure like this in my ListView

TextView EditText EditText

MainActivity

public class MainActivity extends Activity {

ListView list;
private myAdapter adapter;
private List<member>member_list;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    list = (ListView)findViewById(R.id.list);
    set_list();
}
private void set_list()
{
    member_list = new ArrayList<>();
    member_list.add(new member("ABC","1","1"));
    member_list.add(new member("ABC","2","1"));
    member_list.add(new member("ABC","1","2"));
    member_list.add(new member("ABC","0","0"));
    member_list.add(new member("ABC","2","2"));
    member_list.add(new member("ABC","1","0"));
    adapter = new myAdapter(getApplicationContext(),member_list);
    list.setAdapter(adapter);
    list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Toast.makeText(getApplicationContext(),position,Toast.LENGTH_SHORT).show();
        }
    });
}

myAdapter

public class myAdapter extends BaseAdapter {
private List<member>member_list ;
private Context context;
public myAdapter(Context context,List<member> member_list)
{
    this.context = context;
    this.member_list = member_list;
}

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

@Override
public Object getItem(int position) {
    return member_list.get(position);
}

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View v = View.inflate(context,R.layout.textview,null);
    TextView t_name;
    EditText t_text1,t_text2;
    t_name = (TextView)v.findViewById(R.id.t_name);
    t_text1 = (EditText)v.findViewById(R.id.t_text1);
    t_text2 = (EditText)v.findViewById(R.id.t_text2);
    t_name.setText(member_list.get(position).getName());
    t_text1.setText(member_list.get(position).getNum1());
    t_text2.setText(member_list.get(position).getNum2());
    v.setTag(member_list.get(position));
    return v;
}

Answer 1

如果您想在点击时从 EditText 获取文字。您应该将监听器添加到 EditText ，然后让 EditText 接受点击事件，而不是列表。

起初：

android:clickable="true" android:focusable="true"您可以在代码洞察中找到类似的设置功能
将onClickListener设置为您的EditText并致电edittext.getText().toString()即可。

希望这会对你有所帮助

Answer 2

  v.setOnClickListener(new View.OnClickListener(){
    @Override
    public void onClick(View v) {
        Log.v("OpenDbListAdapter ","List View Clicked");
        String txt2 = t_text1.getText().toString();
        Log.i("t_text1", "" + txt2);
    }
});

在适配器中添加此项，并确保已将Textview和Edittext值全局定义。感谢

Answer 3

要访问MainActivity中的EditText值，请更新getView方法，如下所示：

@Override
//Make sure you set position as final here
public View getView(final int position, View convertView, ViewGroup parent) {
   ....
    EditText t_text1,t_text2;
   .....

    t_text1.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
             ((MainActivity)context).textChanged(position, charSequence);
        }

        @Override
        public void afterTextChanged(Editable editable) {

        }
    });

    return v;
}
.....

然后在MainActivity中创建方法textChanged()

一般来说，将context转换为特定活动并不是一种很好的做法，因为它会使在其他地方重用此适配器变得更加困难，但它应该适用于您的目的。

how to get value from the editText in a listview?

3 个答案: