我首先开发了一个简单的记事本应用程序,我使用listView来显示所有注释。但是现在我正在使用RecyclerView。当我使用 ListView 时,我使用OnItemClickListener将数据传递到另一个 Activity 来编辑笔记
现在我混淆了在Recylerview中的操作
对于listView我正在使用它
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
name = filenames.get(position).getName();
note = filenames.get(position).getShorttext();
Alert(); // this method is in main activity
}
});*/
public void Alert()
{
final AlertDialog dialog;
View mview = getLayoutInflater().inflate(R.layout.dialog_pass,null);
final EditText mEdittext = (EditText) mview.findViewById(R.id.Epass);
AlertDialog.Builder mBuilder = new AlertDialog.Builder(MainActivity.this);
mBuilder.setView(mview);
mBuilder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String col = mEdittext.getText().toString();
String password = dBhelper.searchpass(col);
if (col.equals(password)) {
Intent intent = new Intent(MainActivity.this,Note2.class);
intent.putExtra("Name",name);
intent.putExtra("Note",note);
startActivity(intent);
} else {
Toast temp = Toast.makeText(MainActivity.this, "Password does not match", Toast.LENGTH_SHORT);
temp.show();
}
}
});
mBuilder.setNegativeButton("Cancel",null);
mBuilder.setCancelable(false);
dialog = mBuilder.create();
dialog.show();
}
现在我该怎么做以进行回收查看,请帮助
public class RecycleViewAdapter extends
RecyclerView.Adapter<RecycleViewHolder> {// Recyclerview will extend to
private List<FileName> fileNames;
private Context context;
public RecycleViewAdapter(Context context,List<FileName> fileNames) {
this.context = context;
this.fileNames = fileNames;
}
@Override
public RecycleViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater mInflater = LayoutInflater.from(parent.getContext());
ViewGroup mainGroup = (ViewGroup) mInflater.inflate(
R.layout.grid_item, parent, false);
RecycleViewHolder listHolder = new RecycleViewHolder(mainGroup);
return listHolder;
}
@Override
public void onBindViewHolder(RecycleViewHolder holder, final int position) {
final FileName model = fileNames.get(position);
RecycleViewHolder mainHolder = (RecycleViewHolder) holder;// holder
mainHolder.title.setText(model.getName());
mainHolder.note.setText(model.getShorttext());
}
@Override
public int getItemCount() {
return (null != fileNames ? fileNames.size() : 0);
}
最佳答案
您可以使用两种方法处理此问题
1)。手势触摸
https://www.google.co.in/amp/sapandiwakar.in/recycler-view-item-click-handler/amp/
2)。使用适配器中的接口(interface)
https://antonioleiva.com/recyclerview-listener/
我建议使用界面的第二种方式
如何使用界面进行回收public class RecycleViewAdapter extends
RecyclerView.Adapter<RecycleViewHolder> {// Recyclerview will extend to
private List<FileName> fileNames;
private Context context;
//declare interface
private OnItemClicked onClick;
//make interface like this
public interface OnItemClicked {
void onItemClick(int position);
}
public RecycleViewAdapter(Context context,List<FileName> fileNames) {
this.context = context;
this.fileNames = fileNames;
现在将点击分配给界面 @Override
public void onBindViewHolder(RecycleViewHolder holder, final int position) {
//............//
holder.title.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onClick.onItemClick(position);
}
});
}
在适配器类的末尾,从结束括号开始,采用一种方法将itemclick分配给接口(interface)public void setOnClick(OnItemClicked onClick)
{
this.onClick=onClick;
}
在MainActivity.java中
将项目单击与适配器绑定(bind)public class MainActivity extends Activity implements OnItemClicked {
private RecyclerView mRecyclerView;
private CityAdapter mAdapter;
private List<City> cities;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_city);
mRecyclerView = (RecyclerView)findViewById(R.id.list);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
mAdapter = new CityAdapter(cities, R.layout.row_city, this);
mRecyclerView.setAdapter(mAdapter);
mAdapter.setOnClick(MainActivity.this); // Bind the listener
}
@Override
public void onItemClick(int position) {
// The onClick implementation of the RecyclerView item click
//ur intent code here
}
对于Kotlin代码,请引用以下链接
How to handle recyclerview item click in kotlin?
希望这项帮助对您有帮助吗?
关于android - 如何将Onclick监听器添加到回收者 View ,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/44151979/