两个关联的GridView，点击其中一个，另一个的状态发生变化，联动操作

package com.example.castedemo.user;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.GridView;
import android.widget.RelativeLayout;

import com.example.castedemo.R;
import com.example.castedemo.family.adapter.NewTagAdapter;
import com.example.castedemo.family.adapter.TagAdapter;
import com.example.castedemo.user.bean.TagBean;

import java.util.ArrayList;
import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;

public class UserTagActivity extends Activity {
private static final String TAG = "UserTagActivity";

@BindView(R.id.gv_addedTag)
GridView gvAddedTag;
@BindView(R.id.gv_allTag)
GridView gvAllTag;
//    @BindView(R.id.iv_back)
//    ImageView ivBack;
//    @BindView(R.id.rl_bottom)
//    RelativeLayout rlBottom;
String[] allTags = {"推荐", "热点", "视频", "图片", "段子", "社会", "娱乐", "科技"};
NewTagAdapter tagAdapter;
@BindView(R.id.btn_tagCancel)
Button btnTagCancel;
@BindView(R.id.btn_tagSave)
Button btnTagSave;
Context mContext;
List<String> selTags = new ArrayList<String>();
List<TagBean> tagBeen = new ArrayList<TagBean>();
List<TagBean> selTagBeans = new ArrayList<TagBean>();
NewTagAdapter selTagAdapter;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user_tag);
ButterKnife.bind(this);
mContext = UserTagActivity.this;
initData();
initSelData();
}

public void initData() {
for(int i=0;i<allTags.length;i++){
TagBean bean = new TagBean();
bean.setTag(allTags[i]);
bean.setSel(false);
tagBeen.add(bean);
}
tagAdapter = new NewTagAdapter(mContext,tagBeen);
gvAllTag.setAdapter(tagAdapter);
gvAllTag.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
TagBean tagBean = tagBeen.get(position);
Log.e(TAG,"tagName="+tagBean.getTag()+","+tagBean.isSel());
if(tagBean.isSel()){
tagBean.setSel(false);
selTagBeans.remove(tagBean);
}else{
tagBean.setSel(true);
selTagBeans.add(tagBean);
}
tagAdapter.notifyDataSetChanged();
selTagAdapter.notifyDataSetChanged();
}
});
}

public void initSelData(){
if(getIntent().getStringExtra("selTag") != null){
String tags = getIntent().getStringExtra("selTag");
String[] saveTag = tags.split(",");

//将选中的标签列表设置成与所有标签相同的数据结构
for(int i=0;i<saveTag.length;i++){
for(int j=0;j<tagBeen.size();j++){
TagBean bean = tagBeen.get(j);
if(saveTag[i].equals(bean.getTag())){
bean.setSel(true);
selTagBeans.add(bean);
}
}
}
}
selTagAdapter = new NewTagAdapter(mContext,selTagBeans);
gvAddedTag.setAdapter(selTagAdapter);
gvAddedTag.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
TagBean bean = selTagBeans.get(position);
bean.setSel(false);
selTagBeans.remove(position);
selTagAdapter.notifyDataSetChanged();
tagAdapter.notifyDataSetChanged();
}
});
}

@OnClick({R.id.btn_tagCancel, R.id.btn_tagSave})
public void onClick(View view) {
switch (view.getId()) {
case R.id.btn_tagCancel:
finish();
break;
case R.id.btn_tagSave:
String passTags = "";
for(int i=0;i<selTagBeans.size();i++){
//                    passTags[i] = selTagBeans.get(i).getTag();
if(selTagBeans.size()-1 == i){
passTags += selTagBeans.get(i).getTag();
}else{
passTags += selTagBeans.get(i).getTag()+",";
}
}
Intent userIntent = new Intent();
userIntent.putExtra("tag",passTags);
setResult(RESULT_OK,userIntent);
finish();
break;
}
}
}

适配器代码：

package com.example.castedemo.family.adapter;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import com.example.castedemo.R;import com.example.castedemo.user.bean.TagBean;import java.util.List;import butterknife.BindView;import butterknife.ButterKnife;/*** Created by wangchm on 2017/10/26 0026.* 偏好标签页*/public class NewTagAdapter extends BaseAdapter {private static final String TAG = "TagAdapter";private Context mContext;private List<TagBean> tagBeen;public NewTagAdapter(Context mContext, List<TagBean> tagBeen) {this.mContext = mContext;this.tagBeen = tagBeen;}@Overridepublic int getCount() {return tagBeen == null ? 0 : tagBeen.size();}@Overridepublic Object getItem(int position) {return position;}@Overridepublic long getItemId(int position) {return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {ViewHolder holder;if (convertView == null) {convertView = LayoutInflater.from(mContext).inflate(R.layout.tag_item, null);holder = new ViewHolder(convertView);convertView.setTag(holder);}else{holder = (ViewHolder) convertView.getTag();}TagBean bean = tagBeen.get(position);if(bean.isSel()){holder.ivCheck.setVisibility(View.VISIBLE);}else{holder.ivCheck.setVisibility(View.GONE);}holder.tvTag.setText(bean.getTag());return convertView;}static class ViewHolder {@BindView(R.id.tv_tag)TextView tvTag;@BindView(R.id.iv_tagCheck)ImageView ivCheck;ViewHolder(View view) {ButterKnife.bind(this, view);}}}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="match_parent"android:layout_height="match_parent"><TextViewandroid:id="@+id/tv_tag"android:padding="10dp"android:text="推荐"android:layout_marginTop="5dp"android:layout_marginRight="5dp"android:background="@drawable/border_gray_style"android:textColor="@color/text_white"android:layout_width="match_parent"android:layout_height="match_parent" /><ImageViewandroid:id="@+id/iv_tagCheck"android:visibility="gone"android:layout_alignRight="@+id/tv_tag"android:layout_alignTop="@+id/tv_tag"android:layout_marginTop="-5dp"android:layout_marginRight="-5dp"android:src="@drawable/delete_check"android:layout_width="18dp"android:layout_height="18dp" /></RelativeLayout>