强制单选按钮，选择只有一个值

问题描述 投票：0回答：3

我使用的是单选按钮在LayoutInflater，目前，它是选择在一个视图中的所有值，我想选择只有一个所有在列表视图中，我该怎么办呢？

工作代码：

main activity.Java

package com.androidhub4you.multilevellistview;

import java.util.ArrayList;

import com.androidhub4you.multilevellistview.Product.SubCategory;
import com.androidhub4you.multilevellistview.Product.SubCategory.ItemList;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
/**
 * 
 * @author manish
 *
 */
public class MainActivity extends Activity {

    private ArrayList<Product>pProductArrayList;
    private ArrayList<SubCategory>pSubItemArrayList;
    private ArrayList<SubCategory>pSubItemArrayList2;
    private LinearLayout mLinearListView;
    boolean isFirstViewClick=false;
    boolean isSecondViewClick=false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mLinearListView = (LinearLayout) findViewById(R.id.linear_listview);

        /**
         * 
         */

        ArrayList<ItemList> mItemListArray=new ArrayList<ItemList>();
        mItemListArray.add(new ItemList("Red", "20"));
        mItemListArray.add(new ItemList("Blue", "50"));
        mItemListArray.add(new ItemList("Red", "20"));
        mItemListArray.add(new ItemList("Blue", "50"));

        ArrayList<ItemList> mItemListArray2=new ArrayList<ItemList>();
        mItemListArray2.add(new ItemList("Pant", "2000"));
        mItemListArray2.add(new ItemList("Shirt", "1000"));
        mItemListArray2.add(new ItemList("Pant", "2000"));
        mItemListArray2.add(new ItemList("Shirt", "1000"));
        mItemListArray2.add(new ItemList("Pant", "2000"));
        mItemListArray2.add(new ItemList("Shirt", "1000"));


        /**
         * 
         */
        pSubItemArrayList=new ArrayList<SubCategory>();
        pSubItemArrayList2=new ArrayList<SubCategory>();
        pSubItemArrayList.add(new SubCategory("Color", mItemListArray));
        pSubItemArrayList2.add(new SubCategory("Cloths", mItemListArray2));
        pSubItemArrayList.add(new SubCategory("Color", mItemListArray));
        pSubItemArrayList2.add(new SubCategory("Cloths", mItemListArray2));
        /**
         * 
         */

        pProductArrayList=new ArrayList<Product>();
        pProductArrayList.add(new Product("Emotions", pSubItemArrayList));
        pProductArrayList.add(new Product("Garments", pSubItemArrayList2));


        /***
         * adding item into listview
         */
        for (int i = 0; i < pProductArrayList.size(); i++) {

            LayoutInflater inflater = null;
            inflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View mLinearView = inflater.inflate(R.layout.row_first, null);

            final TextView mProductName = (TextView) mLinearView.findViewById(R.id.textViewName);
            final RelativeLayout mLinearFirstArrow=(RelativeLayout)mLinearView.findViewById(R.id.linearFirst);
            final ImageView mImageArrowFirst=(ImageView)mLinearView.findViewById(R.id.imageFirstArrow);
            final LinearLayout mLinearScrollSecond=(LinearLayout)mLinearView.findViewById(R.id.linear_scroll);

            if(isFirstViewClick==false){
            mLinearScrollSecond.setVisibility(View.GONE);
            mImageArrowFirst.setBackgroundResource(R.drawable.arw_lt);
            }
            else{
                mLinearScrollSecond.setVisibility(View.VISIBLE);
                mImageArrowFirst.setBackgroundResource(R.drawable.arw_down);
            }

            mLinearFirstArrow.setOnTouchListener(new OnTouchListener() {

                @Override
                public boolean onTouch(View v, MotionEvent event) {

                    if(isFirstViewClick==false){
                        isFirstViewClick=true;
                        mImageArrowFirst.setBackgroundResource(R.drawable.arw_down);
                        mLinearScrollSecond.setVisibility(View.VISIBLE);

                    }else{
                        isFirstViewClick=false;
                        mImageArrowFirst.setBackgroundResource(R.drawable.arw_lt);
                        mLinearScrollSecond.setVisibility(View.GONE);   
                    }
                    return false;
                } 
            });


            final String name = pProductArrayList.get(i).getpName();
            mProductName.setText(name);

            /**
             * 
             */
            for (int j = 0; j < pProductArrayList.get(i).getmSubCategoryList().size(); j++) {

                LayoutInflater inflater2 = null;
                inflater2 = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                View mLinearView2 = inflater2.inflate(R.layout.row_second, null);

                TextView mSubItemName = (TextView) mLinearView2.findViewById(R.id.textViewTitle);
                final RelativeLayout mLinearSecondArrow=(RelativeLayout)mLinearView2.findViewById(R.id.linearSecond);
                final ImageView mImageArrowSecond=(ImageView)mLinearView2.findViewById(R.id.imageSecondArrow);
                final LinearLayout mLinearScrollThird=(LinearLayout)mLinearView2.findViewById(R.id.linear_scroll_third);

                if(isSecondViewClick==false){
                    mLinearScrollThird.setVisibility(View.GONE);
                    mImageArrowSecond.setBackgroundResource(R.drawable.arw_lt);
                    }
                    else{
                        mLinearScrollThird.setVisibility(View.VISIBLE);
                        mImageArrowSecond.setBackgroundResource(R.drawable.arw_down);
                    }

                mLinearSecondArrow.setOnTouchListener(new OnTouchListener() {

                        @Override
                        public boolean onTouch(View v, MotionEvent event) {

                            if(isSecondViewClick==false){
                                isSecondViewClick=true;
                                mImageArrowSecond.setBackgroundResource(R.drawable.arw_down);
                                mLinearScrollThird.setVisibility(View.VISIBLE);

                            }else{
                                isSecondViewClick=false;
                                mImageArrowSecond.setBackgroundResource(R.drawable.arw_lt);
                                mLinearScrollThird.setVisibility(View.GONE);    
                            }
                            return false;
                        } 
                    });


                final String catName = pProductArrayList.get(i).getmSubCategoryList().get(j).getpSubCatName();
                mSubItemName.setText(catName);
                /**
                 * 
                 */
                  for (int k = 0; k < pProductArrayList.get(i).getmSubCategoryList().get(j).getmItemListArray().size(); k++) {

                        LayoutInflater inflater3 = null;
                        inflater3 = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                        View mLinearView3 = inflater3.inflate(R.layout.row_third, null);

                        TextView mItemName = (TextView) mLinearView3.findViewById(R.id.textViewItemName);
                        TextView mItemPrice = (TextView) mLinearView3.findViewById(R.id.textViewItemPrice);
                        final String itemName = pProductArrayList.get(i).getmSubCategoryList().get(j).getmItemListArray().get(k).getItemName();
                        final String itemPrice = pProductArrayList.get(i).getmSubCategoryList().get(j).getmItemListArray().get(k).getItemPrice();
                        mItemName.setText(itemName);
                        mItemPrice.setText(itemPrice);

                        mLinearScrollThird.addView(mLinearView3);
                  }

                mLinearScrollSecond.addView(mLinearView2);

            }

            mLinearListView.addView(mLinearView);
        }       
    }

}

product.Java

package com.androidhub4you.multilevellistview;

import java.util.ArrayList;

/**
 * 
 * first level item
 * 
 */
public class Product {

    private String pName;

    private ArrayList<SubCategory> mSubCategoryList;

    public Product(String pName, ArrayList<SubCategory> mSubCategoryList) {
        super();
        this.pName = pName;
        this.mSubCategoryList = mSubCategoryList;
    }

    public String getpName() {
        return pName;
    }

    public void setpName(String pName) {
        this.pName = pName;
    }

    public ArrayList<SubCategory> getmSubCategoryList() {
        return mSubCategoryList;
    }

    public void setmSubCategoryList(ArrayList<SubCategory> mSubCategoryList) {
        this.mSubCategoryList = mSubCategoryList;
    }

    /**
     * 
     * second level item
     * 
     */

    public static class SubCategory {

        private String pSubCatName;
        private ArrayList<ItemList> mItemListArray;

        public SubCategory(String pSubCatName,
                ArrayList<ItemList> mItemListArray) {
            super();
            this.pSubCatName = pSubCatName;
            this.mItemListArray = mItemListArray;
        }

        public String getpSubCatName() {
            return pSubCatName;
        }

        public void setpSubCatName(String pSubCatName) {
            this.pSubCatName = pSubCatName;
        }

        public ArrayList<ItemList> getmItemListArray() {
            return mItemListArray;
        }

        public void setmItemListArray(ArrayList<ItemList> mItemListArray) {
            this.mItemListArray = mItemListArray;
        }

        /**
         * 
         * third level item
         * 
         */
        public static class ItemList {

            private String itemName;
            private String itemPrice;

            public ItemList(String itemName, String itemPrice) {
                super();
                this.itemName = itemName;
                this.itemPrice = itemPrice;
            }

            public String getItemName() {
                return itemName;
            }

            public void setItemName(String itemName) {
                this.itemName = itemName;
            }

            public String getItemPrice() {
                return itemPrice;
            }

            public void setItemPrice(String itemPrice) {
                this.itemPrice = itemPrice;
            }

        }

    }

}

activity_main.xml中

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

    <LinearLayout
        android:id="@+id/linear_listview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" />

</ScrollView>

row_third.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@android:color/white"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textViewItemName"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@android:color/background_light"
            android:text="TextView"
            android:textColor="@android:color/black"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textViewItemPrice"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@android:color/background_light"
            android:text="TextView"
            android:textColor="@android:color/black"
            android:textSize="18sp" />

  <RadioButton
    android:id="@+id/selection"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="4px"
    android:layout_marginRight="10px"
    android:layout_alignParentRight="true"
    />


        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="@android:color/darker_gray" />

    </LinearLayout>
android android-listview radio-button
3个回答
0
投票
    <?xml version="1.0" encoding="utf-8"?>
<RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">
    <RadioButton android:id="@+id/radio_pirates"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/pirates"
        android:onClick="onRadioButtonClicked"/>
    <RadioButton android:id="@+id/radio_ninjas"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/ninjas"
        android:onClick="onRadioButtonClicked"/>
</RadioGroup>

单选按钮点击

public void onRadioButtonClicked(View view) {
    // Is the button now checked?
    boolean checked = ((RadioButton) view).isChecked();

    // Check which radio button was clicked
    switch(view.getId()) {
        case R.id.radio_pirates:
            if (checked)
                // Pirates are the best
            break;
        case R.id.radio_ninjas:
            if (checked)
                // Ninjas rule
            break;
    }
}
0
投票

您可以通过编程检查是否有任何单选按钮被选中，并检查使用qazxsw POI在for循环中所选择的一个前取消它。

-1
投票

把radiobutton1.isChecked()控件RadioButton内。

作为链接的文档状态，一个RadioGroup自动处理这样的：

此类用于创建一组单选按钮的倍数排阻范围。检查属于一个无线电设备组取消选中同一组内的任何先前检查的单选按钮一个单选按钮。

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