按下时，RecyclerView中的CheckBox不起作用 [英] CheckBox in RecyclerView not working when pressed
本文介绍了按下时，RecyclerView中的CheckBox不起作用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有带有TextView和CheckBox的基本RecyclerView项.但是，当我单击CheckBox时，它不起作用.当我长按时，它更神奇了.
I have basic RecyclerView item with TextView and CheckBox. But when I click CheckBox, it does not work. All the more amazing it works when I long pressed.
我进行了研究，发现android:descendantFocusability="blocksDescendants"，android:clickable="false"，android:focusable="false"和android:longClickable="false"，但是他们没有帮助我
I made a research and found android:descendantFocusability="blocksDescendants" , android:clickable="false", android:focusable="false" , android:longClickable="false" but they didn't help me
这是我的RecyclerView项目布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:descendantFocusability="blocksDescendants">
<TextView
android:id="@+id/item_text"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="TextView"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:textColor="#000000"/>
<android.support.v7.widget.AppCompatCheckBox
android:id="@+id/item_checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:layout_marginEnd="10dp"
app:buttonTint="@color/colorAccent"
android:focusable="false"
android:focusableInTouchMode="false"/>
</LinearLayout>
这是我的适配器类
public class FilterTypeAdapter extends RecyclerView.Adapter<FilterTypeAdapter.MyViewHolder> {
private ArrayList<String> mData;
private Context mContext;
public FilterTypeAdapter() {
}
public FilterTypeAdapter(Context mContext, ArrayList<String> mData) {
this.mContext = mContext;
this.mData = mData;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int i) {
View v = LayoutInflater.from(mContext).inflate(R.layout.recycler_view_single_row, parent, false);
MyViewHolder vh = new MyViewHolder(v);
return vh;
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
holder.mText.setText(mData.get(position));
holder.mCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Toast.makeText(mContext, "Status is: " + isChecked + "", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public int getItemCount() {
return mData.size();
}
// View Holder
public class MyViewHolder extends RecyclerView.ViewHolder {
private TextView mText;
private CheckBox mCheckBox;
public MyViewHolder(View itemView) {
super(itemView);
mText = itemView.findViewById(R.id.item_text);
mCheckBox = itemView.findViewById(R.id.item_checkbox);
}
}
}
推荐答案
我发现这里一切正常.
package <your_package>;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.AppCompatCheckBox;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.Toast;
import <your_package>.R;
import java.util.ArrayList;
public class TestActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test_recyclerview);
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
ArrayList<String> data = new ArrayList<>();
for(int i =0; i < 1000; i++) {
data.add(String.valueOf(i));
}
recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.VERTICAL, false));
recyclerView.setAdapter(new FilterTypeAdapter(getApplicationContext(), data));
}
public class FilterTypeAdapter extends RecyclerView.Adapter<MyViewHolder> {
private ArrayList<String> mData;
private HashMap<String, Boolean> mChecked;
private Context mContext;
public FilterTypeAdapter() {
}
public FilterTypeAdapter(Context mContext, ArrayList<String> mData) {
this.mContext = mContext;
this.mData = mData;
this.mChecked = new HashMap<>();
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int i) {
View v = TestActivity.this.getLayoutInflater().inflate(R.layout.test_recyclerview_item, parent, false);
MyViewHolder vh = new MyViewHolder(v);
return vh;
}
@Override
public void onBindViewHolder(final MyViewHolder holder, int position) {
holder.mText.setText(mData.get(position));
holder.mCheckBox.setOnCheckedChangeListener(null);
if(mChecked.containsKey(mData.get(position))) {
holder.mCheckBox.setChecked(mChecked.get(mData.get(position)));
}
else {
holder.mCheckBox.setChecked(false);
}
holder.mCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
mChecked.put(mData.get(holder.getAdapterPosition()), isChecked);
Toast.makeText(mContext, "Status is: " + isChecked + "", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public int getItemCount() {
return mData.size();
}
}
// View Holder
public class MyViewHolder extends RecyclerView.ViewHolder {
private TextView mText;
private AppCompatCheckBox mCheckBox;
public MyViewHolder(View itemView) {
super(itemView);
mText = (TextView) itemView.findViewById(R.id.item_text);
mCheckBox = (AppCompatCheckBox) itemView.findViewById(R.id.item_checkbox);
}
}
}
R.layout.test_recyclerview
R.layout.test_recyclerview
<android.support.v7.widget.RecyclerView android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="30dp"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
xmlns:android="http://schemas.android.com/apk/res/android" />
R.layout.testrecyclerview_item
R.layout.testrecyclerview_item
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/item_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:layout_marginLeft="10dp"
android:layout_marginStart="10dp"
android:textColor="#000000"/>
<android.support.v7.widget.AppCompatCheckBox
android:id="@+id/item_checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:layout_marginEnd="10dp"
app:buttonTint="@color/colorAccent"
/>
</LinearLayout>
这篇关于按下时，RecyclerView中的CheckBox不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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