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Android 不显示RadioGroup的ListView_Android_Listview_Android Arrayadapter - Fatal编程技术网

Android 不显示RadioGroup的ListView

Android 不显示RadioGroup的ListView,android,listview,android-arrayadapter,Android,Listview,Android Arrayadapter,我想创建一个列表视图,其中包含带有复选框的列表项和带有2个单选按钮的放射组 我不知道为什么,但是显示了TextView和复选框,而RadioGroup没有显示 我查过这个问题,但找不到确切的问题。有人能帮我吗 这是XML代码: <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height=

我想创建一个
列表视图
,其中包含带有
复选框的列表项
和带有2个
单选按钮的
放射组

我不知道为什么,但是显示了
TextView
复选框,而
RadioGroup
没有显示

我查过这个问题,但找不到确切的问题。有人能帮我吗

这是XML代码:

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<View
    android:layout_width="match_parent"
    android:layout_height="1dip"
    android:id="@+id/hlInteraction"
    android:layout_alignParentBottom="true"
    android:background="@android:color/darker_gray" />

<RadioGroup
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_above="@id/hlInteraction"
    android:orientation="horizontal"
    android:gravity="center"
    android:id="@+id/rgInteraction"
    >
    <RadioButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="16dp"
        android:paddingRight="16dp"
        android:text="@string/rb_on"
        android:id="@+id/rbTurnOff"/>

    <RadioButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingRight="16dp"
        android:paddingLeft="16dp"
        android:text="@string/rb_off"
        android:id="@+id/rbTurnOn"
        />
    </RadioGroup>

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/tvDeviceNameInteraction"
    android:layout_alignParentLeft="true"
    android:paddingLeft="16dp"
    android:textSize="24sp"
    android:layout_above="@id/rgInteraction"
    />
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/tvDeviceDistanceInteraction"
    android:layout_toRightOf="@id/tvDeviceNameInteraction"
    android:paddingLeft="16dp"
    android:textSize="24sp"
    android:layout_above="@id/rgInteraction"
    />
<CheckBox
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:paddingRight="4dp"
    android:id="@+id/cbInteraction"
    android:layout_above="@id/rgInteraction"
    />

下面是自定义adatper类:

public class InteractionAdapter extends ArrayAdapter<Interaction>
{
    private ArrayList<Interaction> mList;
    private Context mContext;

    /*
     * Creates the Adapter for the list
     */
    public InteractionAdapter(Context context, int layoutId, ArrayList<Interaction> list)
    {
        super(context,layoutId,list);
        mList = list;
        mContext = context;

    }
    /**
     * inflate view for each row
     */
    @SuppressLint("InflateParams")
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View v = convertView;
        Interaction current = mList.get(position);
        /* if the given channel row view is not being updated*/
        if (v == null) {
            /* inflate layout */
            LayoutInflater vi = LayoutInflater.from(getContext());
            v = vi.inflate(R.layout.list_item_interaction, null, false);
        }

        /*get the component pointers */
        TextView tvInteractionDeviceName = (TextView) v.findViewById(R.id.tvDeviceNameInteraction);
        TextView tvInteractionDeviceDistance = (TextView) v.findViewById(R.id.tvDeviceDistanceInteraction);


        RadioButton rbOn = (RadioButton) v.findViewById(R.id.rbTurnOn);
        RadioButton rbOff =  (RadioButton) v.findViewById(R.id.rbTurnOff);
        rbOn.setChecked(true);

        CheckBox cbInteraction =  (CheckBox) v.findViewById(R.id.cbInteraction);

        Device d = current.getDevice();//Gets Device object and then BluettothDevice object

        tvInteractionDeviceName.setText(d.getDevice().getName());
        tvInteractionDeviceDistance.setText(String.valueOf(d.getRSSI()));

        return v;
    }
公共类交互适配器扩展了ArrayAdapter
{
私有数组列表;
私有上下文;
/*
*为列表创建适配器
*/
公共交互适配器(上下文、int-layoutId、ArrayList列表)
{
超级(上下文、布局ID、列表);
mList=列表;
mContext=上下文;
}
/**
*为每行充气视图
*/
@SuppressLint(“充气参数”)
@凌驾
公共视图getView(int位置、视图转换视图、视图组父视图){
视图v=转换视图;
交互电流=mList.get(位置);
/*如果未更新给定的通道行视图*/
如果(v==null){
/*充气布局*/
LayoutInflater vi=LayoutInflater.from(getContext());
v=vi.充气(R.布局.列表\项目\交互,空,假);
}
/*获取组件指针*/
TextView tvInteractionDeviceName=(TextView)v.findViewById(R.id.tvDeviceNameInteraction);
TextView-tvInteractionDeviceDistance=(TextView)v.findViewById(R.id.tvDeviceDistanceInteraction);
RadioButton rbOn=(RadioButton)v.findViewById(R.id.rbTurnOn);
RadioButton rbOff=(RadioButton)v.findViewById(R.id.rbTurnOff);
rbOn.setChecked(真);
复选框cbInteraction=(复选框)v.findviewbyd(R.id.cbInteraction);
Device d=current.getDevice();//获取设备对象,然后获取BlueToThDevice对象
tvInteractionDeviceName.setText(d.getDevice().getName());
tvInteractionDeviceDistance.setText(String.valueOf(d.getRSSI());
返回v;
}
另外,如果我想获得
单选按钮的状态,我基本上需要添加标签作为一种标签形式,这样我就可以区分其中一种,对吗

编辑
在我刚刚发布的xml代码预览中,布局似乎运行良好。我怀疑代码的这一部分是否有任何错误

这是一张照片:


首先,我对你的布局做了一些改进

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

<View
    android:id="@+id/hlInteraction"
    android:layout_width="match_parent"
    android:layout_height="1dip"
    android:layout_alignParentBottom="true"
    android:background="@android:color/darker_gray" />

<RadioGroup
    android:id="@+id/rgInteraction"
    android:layout_width="match_parent"
    android:id="@+id/radioGroup"
    android:layout_height="wrap_content"
    android:layout_above="@id/hlInteraction"
    android:gravity="center"
    android:orientation="horizontal"
    android:paddingLeft="16dp"
    android:paddingRight="16dp" >

    <RadioButton
        android:id="@+id/rbTurnOff"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="asdasd" />

    <RadioButton
        android:id="@+id/rbTurnOn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="asdas" />
</RadioGroup>

<TextView
    android:id="@+id/tvDeviceNameInteraction"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/rgInteraction"
    android:layout_alignParentLeft="true"
    android:paddingLeft="16dp"
    android:textSize="24sp" />

<TextView
    android:id="@+id/tvDeviceDistanceInteraction"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/rgInteraction"
    android:layout_toRightOf="@id/tvDeviceNameInteraction"
    android:paddingLeft="16dp"
    android:textSize="24sp" />

<CheckBox
    android:id="@+id/cbInteraction"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/rgInteraction"
    android:layout_alignParentRight="true"
    android:paddingRight="4dp" />
试试这个,不要使用@SuppressLint(“InflateParams”),使用

帕维尔, 首先,在xml预览模式中检查您的单选按钮是否显示在特定行中,如果不是,那么您的布局设计肯定不正确。 如果是这样的话,那么我们可以在布局上进行计算。

请像这样尝试:

RadioGroup radioGroup = (RadioGroup)findViewById(r.id.rgInteraction);
// This will get the radiobutton in the radiogroup that is checked 
RadioButton checkedRadioButton = (RadioButton)radioGroup.findViewById(radioGroup.getCheckedRadioButtonId());
// This overrides the radiogroup onCheckListener 

 radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() 
    { 
        public void onCheckedChanged(RadioGroup radioGroup, int checkedId)
        { 
            // This will get the radiobutton that has changed in its check state 
            RadioButton checkedRadioButton = (RadioButton)radioGroup.findViewById(checkedId);
            // This puts the value (true/false) into the variable 
            boolean isChecked = checkedRadioButton.isChecked();
            // If the radiobutton that has changed in check state is now checked... 

            if (isChecked){ 
                Toast.makeText(InteractionAdapter.this, "Checked", Toast.LENGTH_LONG).show();
            } else{
                Toast.makeText(InteractionAdapter.this, "Unchecked", Toast.LENGTH_LONG).show();
            }
        } 
    }); 
像这样使用Listner:

RadioGroup radioGroup = (RadioGroup)findViewById(r.id.rgInteraction);
// This will get the radiobutton in the radiogroup that is checked 
RadioButton checkedRadioButton = (RadioButton)radioGroup.findViewById(radioGroup.getCheckedRadioButtonId());
// This overrides the radiogroup onCheckListener 

 radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() 
    { 
        public void onCheckedChanged(RadioGroup radioGroup, int checkedId)
        { 
            // This will get the radiobutton that has changed in its check state 
            RadioButton checkedRadioButton = (RadioButton)radioGroup.findViewById(checkedId);
            // This puts the value (true/false) into the variable 
            boolean isChecked = checkedRadioButton.isChecked();
            // If the radiobutton that has changed in check state is now checked... 

            if (isChecked){ 
                Toast.makeText(InteractionAdapter.this, "Checked", Toast.LENGTH_LONG).show();
            } else{
                Toast.makeText(InteractionAdapter.this, "Unchecked", Toast.LENGTH_LONG).show();
            }
        } 
    }); 

我自己都试过了。这段代码运行得很好,问题出在你的布局上。你使用的视图布局。这是全部代码

MainActivity.java

package com.example.helppeople;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;

public class MainActivity extends Activity {

ListView mLists;

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

    mLists = (ListView) findViewById(R.id.list);
    ArrayList<Interaction> mList = new ArrayList<Interaction>();

    mList.add(new Interaction("123"));
    mList.add(new Interaction("456"));
    mList.add(new Interaction("789"));
    mList.add(new Interaction("012"));

    InteractionAdapter mAdapter = new InteractionAdapter(
            getApplicationContext(), mList);

    mLists.setAdapter(mAdapter);

    }
}

告诉我它是否有帮助,希望它有帮助…我还没有测试运行这段代码,但我确实认为这是问题所在,更正后的XML代码没有帮助。而且不确定这段代码的第二部分有什么帮助…也尝试了它,不起作用…@PavlePavlov看看它是否有帮助,一定要让我知道。我已经编辑了我的答案,不要使用@SuppressLint(“InflateParams”)但是使用convertView=inflater.inflate(R.layout.list\u item\u交互,父项,false);而不是仍然是相同的结果。:/等等,我会自己尝试,然后发布答案。请为此添加一些代码。这不会被接受为答案。您需要为此添加一些代码。我已发布了一个新的答案。此代码正在运行。感谢您的努力,您的解决方案解决了我的问题。我非常感谢!:@PavlePavlov乐于帮助
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

<ListView
    android:id="@+id/list"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >
</ListView>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >

<RadioGroup
    android:id="@+id/rgInteraction"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:orientation="horizontal"
    android:paddingLeft="16dp"
    android:paddingRight="16dp" >

    <RadioButton
        android:id="@+id/rbTurnOff"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="asdasd" />

    <RadioButton
        android:id="@+id/rbTurnOn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="asdas" />
</RadioGroup>

<TextView
    android:id="@+id/tvDeviceNameInteraction"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/rgInteraction"
    android:layout_alignParentLeft="true"
    android:paddingLeft="16dp"
    android:textSize="24sp" />

<TextView
    android:id="@+id/tvDeviceDistanceInteraction"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/rgInteraction"
    android:layout_toRightOf="@id/tvDeviceNameInteraction"
    android:paddingLeft="16dp"
    android:textSize="24sp" />

<CheckBox
    android:id="@+id/cbInteraction"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@id/rgInteraction"
    android:layout_alignParentRight="true"
    android:paddingRight="4dp" />

</RelativeLayout>
package com.example.helppeople;

import java.util.ArrayList;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.RadioButton;
import android.widget.TextView;

public class InteractionAdapter extends BaseAdapter {
private ArrayList<Interaction> mList;
private Context mContext;

/*
 * Creates the Adapter for the list
 */
public InteractionAdapter(Context context, ArrayList<Interaction> list) {
    mList = list;
    mContext = context;

}

/**
 * inflate view for each row
 */
@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View v = convertView;
    Interaction current = mList.get(position);
    /* if the given channel row view is not being updated */
    if (v == null) {
        /* inflate layout */
        LayoutInflater vi = LayoutInflater.from(mContext);
        v = vi.inflate(R.layout.list_item_interaction, null, false);
    }

    /* get the component pointers */
    TextView tvInteractionDeviceName = (TextView) v
            .findViewById(R.id.tvDeviceNameInteraction);
    TextView tvInteractionDeviceDistance = (TextView) v
            .findViewById(R.id.tvDeviceDistanceInteraction);

    RadioButton rbOn = (RadioButton) v.findViewById(R.id.rbTurnOn);
    RadioButton rbOff = (RadioButton) v.findViewById(R.id.rbTurnOff);
    rbOn.setChecked(true);

    CheckBox cbInteraction = (CheckBox) v.findViewById(R.id.cbInteraction);

    // Gets Device object and then BluettothDevice object

    tvInteractionDeviceName.setText("abc");
    tvInteractionDeviceDistance.setText("xyxz");

    return v;
}

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

@Override
public Object getItem(int arg0) {
    return mList.get(arg0);
}

@Override
public long getItemId(int arg0) {
    return arg0;
    }
}
package com.example.helppeople;

public class Interaction {

String name;

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public Interaction(String name) {
    super();
    this.name = name;
    }

}