似乎无法解决此问题，需要复选框才能检查列表项目是否单击？

Question

我一直在与这个问题作斗争超过一天，我尝试的每一个解决方案都无法为我工作。基本上我需要的是：我有一个包含复选框和textview的列表视图。在用户点击复选框时，它会被选中/取消选中。它完美地运作。但是复选框有点小，所以当用户点击相应的文本视图时我希望它们被检查，我该怎么做？

这是我的代码：

public class MyActivity3 extends Activity {
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_my3);
    Button m = (Button) findViewById(R.id.button3);
    tv = (TextView) findViewById(R.id.textViewcat);
    Typeface typeface = Typeface.createFromAsset(getAssets(), "BebasNeue Bold.ttf");
    tv.setTypeface(typeface);

    String[] listArray = new String[] { "All", "Friends & Family", "Sports", "Outside", "At School", "Fitness", "Photography", "Food", "Beach", "Money" };
    SharedPreferences sharedPreferences = getSharedPreferences("status", MODE_PRIVATE);

    Boolean[] checkedStatus = new Boolean[listArray.length];
    for ( int index = 0; index < checkedStatus.length; index++)
        checkedStatus[index] = sharedPreferences.getBoolean(Integer.toString(index), false);

    ListView listView = (ListView) findViewById(R.id.listView);
    MyAdapter adapter = new MyAdapter(this, R.layout.row_layout, listArray, checkedStatus);
    listView.setAdapter(adapter);

}



@Override
public void onBackPressed() {
    super.onBackPressed();
    overridePendingTransition(R.anim.animation8, R.anim.animation7);
   }
}

MyAdapter：

public class MyAdapter extends ArrayAdapter<String> implements CompoundButton.OnCheckedChangeListener{

String[] values;
Boolean[] checkedStatus;

public MyAdapter(Context context, int resource, String[] values, Boolean[] checkedStatus) {
    super(context, resource, values);

    this.values = values;
    this.checkedStatus = checkedStatus;
}

@Override
public int getCount() {
    return values.length;
}

@Override
public String getItem(int position) {
    return values[position];
}

@Override
public long getItemId(int position) {
    return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View view = convertView;
    if(view == null){
        LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(R.layout.row_layout, null);
    }

    TextView textView = (TextView) view.findViewById(R.id.title);
    textView.setText(values[position]);

    CheckBox box = (CheckBox) view.findViewById(R.id.chk);
    box.setTag(position);
    box.setOnCheckedChangeListener(this);
    box.setChecked(checkedStatus[position]);

    return view;
}

@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
    Integer index = (Integer) buttonView.getTag();
    checkedStatus[index] = isChecked;
    String key = buttonView.getTag().toString();

    SharedPreferences sharedPreferences=getContext().getSharedPreferences("status", Context.MODE_PRIVATE);
    SharedPreferences.Editor editor=sharedPreferences.edit();
    editor.putBoolean(key,isChecked);
    editor.apply();
   }
}

Answer 1

我建议您在用户点击列表项时选中/取消选中该复选框。这对我来说听起来更合适。因此，在适配器的getView()方法中，您需要添加以下代码：

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View view = convertView;
    if(view == null){
        LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(R.layout.row_layout, null);
    }

    TextView textView = (TextView) view.findViewById(R.id.title);
    textView.setText(values[position]);

    CheckBox box = (CheckBox) view.findViewById(R.id.chk);
    box.setTag(position);
    box.setOnCheckedChangeListener(this);
    box.setChecked(checkedStatus[position]);


    view.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // on each click change the state of checkbox
        box.setChecked(!box.isChecked());
        }
    });


    return view;
}

Answer 2

在MyAdpater写入单击侦听器中进行父布局或textview，然后单击“只检查当前”复选框是否已选中并按照执行操作进行复选。

e.g。

LinearLayout ll (parent layout)
CheckBox cb;
ll.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            if(cb.isChecked())
           {
             code for unchecked checkbox
           }
           else
           {
             code for checked checkbox 
           }

        }
    });

Answer 3

您应该使用CheckedTextView代替TextView和CheckBox。使用这个单独的小部件，您可以获得这种效果。

• Implement custom multi select ListView with custom ArrayAdapter
• Tutorial 1
• Tutorial 2

编辑：

Activity

的代码段

public class MainActivity extends Activity {

    ListView myListView;
    Button getResult;

    private ArrayList<String> dayOfWeekList = new ArrayList<String>();

    private void initDayOfWeekList(){
        dayOfWeekList.add("Sunday");
        dayOfWeekList.add("Monday");
        dayOfWeekList.add("Tuesday");
        dayOfWeekList.add("Wednesday");
        dayOfWeekList.add("Thursday");
        dayOfWeekList.add("Friday");
        dayOfWeekList.add("Saturday");

    }

    MyArrayAdapter myArrayAdapter;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        initDayOfWeekList();
        setContentView(R.layout.activity_main);

        myListView = (ListView)findViewById(R.id.list);

        myArrayAdapter = new MyArrayAdapter(
                this,
                R.layout.row,
                android.R.id.text1,
                dayOfWeekList
                );

        myListView.setAdapter(myArrayAdapter);
        myListView.setOnItemClickListener(myOnItemClickListener);

        getResult = (Button)findViewById(R.id.getresult);
        getResult.setOnClickListener(new OnClickListener(){

            @Override
            public void onClick(View v) {
                String result = "";

                //getCheckedItems
                List<String> resultList = myArrayAdapter.getCheckedItems();
                for(int i = 0; i < resultList.size(); i++){
                    result += String.valueOf(resultList.get(i)) + "\n";
                }

                myArrayAdapter.getCheckedItemPositions().toString();
                Toast.makeText(
                        getApplicationContext(), 
                        result, 
                        Toast.LENGTH_LONG).show();
            }});

    }

    OnItemClickListener myOnItemClickListener = new OnItemClickListener(){

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
            myArrayAdapter.toggleChecked(position);

        }};

    private class MyArrayAdapter extends ArrayAdapter<String>{

        private HashMap<Integer, Boolean> myChecked = new HashMap<Integer, Boolean>();

        public MyArrayAdapter(Context context, int resource,
                int textViewResourceId, List<String> objects) {
            super(context, resource, textViewResourceId, objects);

            for(int i = 0; i < objects.size(); i++){
                myChecked.put(i, false);
            }
        }

        public void toggleChecked(int position){
            if(myChecked.get(position)){
                myChecked.put(position, false);
            }else{
                myChecked.put(position, true);
            }

            notifyDataSetChanged();
        }

        public List<Integer> getCheckedItemPositions(){
            List<Integer> checkedItemPositions = new ArrayList<Integer>();

            for(int i = 0; i < myChecked.size(); i++){
                if (myChecked.get(i)){
                    (checkedItemPositions).add(i);
                }
            }

            return checkedItemPositions;
        }

        public List<String> getCheckedItems(){
            List<String> checkedItems = new ArrayList<String>();

            for(int i = 0; i < myChecked.size(); i++){
                if (myChecked.get(i)){
                    (checkedItems).add(dayOfWeekList.get(i));
                }
            }

            return checkedItems;
        }

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

            if(row==null){
                LayoutInflater inflater=getLayoutInflater();
                row=inflater.inflate(R.layout.row, parent, false);  
            }

            CheckedTextView checkedTextView = (CheckedTextView)row.findViewById(R.id.text1);
            checkedTextView.setText(dayOfWeekList.get(position));

            Boolean checked = myChecked.get(position);
            if (checked != null) {
                checkedTextView.setChecked(checked);
            }

            return row;
        }

    }

}

布局activity_main

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/getresult"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Get Result"/>
    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

布局row

<?xml version="1.0" encoding="utf-8"?>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/text1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:checkMark="?android:attr/listChoiceIndicatorMultiple"
    android:paddingLeft="8dp"
    android:paddingRight="8dp"
    android:gravity="center_vertical" />

截图：