数据管理模块中，对数据进行全选，反选，删除，是否隐藏/显示
总体思路：用Greendao记录数据item的选择状态，然后根据按钮选择类型，来实际操作修改表中的记录状态，之后（针对多次item操作）再定时刷新。
对应布局文件 activity_collection_edit.xml：
主activity CollectionEditActivty ：
package com.ys.dzyjdc.about.activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import com.ys.dzyjdc.R;
import com.ys.dzyjdc.about.adapter.CollectionEditAdapter;
import com.ys.dzyjdc.about.constant.ProjectConstant;
import com.ys.dzyjdc.about.presenter.CollectionEditPresenter;
import com.ys.dzyjdc.base.BaseActivity;
import com.ys.dzyjdc.map.entity.Sign;
import java.util.List;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
public class CollectionEditActivty extends BaseActivity {
private CollectionEditPresenter myCollectionPresenter;
private List signs;
@BindView(R.id.button_back)
LinearLayout btnBack;//返回按钮
@BindView(R.id.text_save)
TextView saveData;//保存按钮
@BindView(R.id.listview_collection)
ListView collectionListview;//收藏数据面板
@BindView(R.id.select_all)
Button selectAll;//全选按钮
@BindView(R.id.select_invert)
Button selectInvert;//反选按钮
@BindView(R.id.set_state)
Button setState;//状态设置按钮
@BindView(R.id.item_delete)
Button deleteItem;//删除按钮
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_collection_edit);
ButterKnife.bind(this);
initData();
}
private void initData() {
//EventBus.getDefault().register(this);
myCollectionPresenter = new CollectionEditPresenter(this);
myCollectionPresenter.getCollectionData();
}
@OnClick({R.id.button_back, R.id.select_all, R.id.select_invert,R.id.set_state,R.id.item_delete,R.id.text_save})
public void onClick(View v) {
switch (v.getId()) {
//返回按钮
case R.id.button_back:
startActivity(new Intent(CollectionEditActivty.this, MyCollectionActivity.class));
break;
//全选
case R.id.select_all:
collectionListview.setAdapter(new CollectionEditAdapter(this, signs, ProjectConstant.SELECT_ALL));
break;
//反选
case R.id.select_invert:
collectionListview.setAdapter(new CollectionEditAdapter(this, signs, ProjectConstant.SELECT_INVERT));
break;
//隐藏、显示状态设置
case R.id.set_state:
collectionListview.setAdapter(new CollectionEditAdapter(this, signs, ProjectConstant.SET_STATE));
//放在这里做延时，主要考虑到多个item状态修改的情况
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
//do something
myCollectionPresenter.getCollectionData();//刷新页面数据
}
}, 1000);
break;
case R.id.item_delete:
collectionListview.setAdapter(new CollectionEditAdapter(this, signs, ProjectConstant.DELETE_ITEM));
//放在这里做延时，主要考虑到删除多个item的情况
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
//do something
myCollectionPresenter.getCollectionData();//刷新页面数据
}
}, 1000);
break;
//保存按钮
case R.id.text_save:
startActivity(new Intent(CollectionEditActivty.this, MyCollectionActivity.class));
break;
default:
break;
}
}
/**
* 我的收藏数据展示
*
* @param signList
*/
public void showCollectionData(List signList) {
signs = signList;
collectionListview.setAdapter(new CollectionEditAdapter(this, signList, ""));
}
/*@Override
protected void onDestroy() {
super.onDestroy();
EventBus.getDefault().unregister(this);
}*/
/*@Subscribe(threadMode = ThreadMode.MAIN)
public void onMessageEvent(MessageWrap message) {
Log.i("数据刷新", "message is " + message);
myCollectionPresenter.getCollectionData();//刷新页面数据
}*/
}
对应适配器：
package com.ys.dzyjdc.about.adapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.ys.dzyjdc.R;
import com.ys.dzyjdc.about.activity.CollectionEditActivty;
import com.ys.dzyjdc.about.constant.ProjectConstant;
import com.ys.dzyjdc.about.entity.CollectionEditSelectState;
import com.ys.dzyjdc.dao.CollectionEditSelectStateDao;
import com.ys.dzyjdc.map.entity.Sign;
import java.util.List;
public class CollectionEditAdapter extends BaseAdapter {
private CollectionEditActivty collectionEditActivty;
private List signList;
private String operationType;
private CollectionEditSelectStateDao collectionEditSelectStateDao;
public CollectionEditAdapter(CollectionEditActivty collectionEditActivty, List signList, String operationType) {
this.collectionEditActivty = collectionEditActivty;
this.signList = signList;
this.operationType = operationType;
collectionEditSelectStateDao = collectionEditActivty.getSession().getCollectionEditSelectStateDao();
}
@Override
public int getCount() {
return signList.size();
}
@Override
public Object getItem(int position) {
return signList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
final Sign sign = signList.get(position);
if (convertView == null) {
convertView = LayoutInflater.from(collectionEditActivty).inflate(R.layout.item_collection, null);
holder = new ViewHolder();
holder.collectionName = convertView.findViewById(R.id.collection_name);
holder.createTime = convertView.findViewById(R.id.create_time);
holder.stateShow = convertView.findViewById(R.id.state_show);
holder.labelEdit = convertView.findViewById(R.id.label_edit);
holder.checkBox = convertView.findViewById(R.id.data_choose);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.checkBox.setVisibility(View.VISIBLE);
holder.labelEdit.setVisibility(View.GONE);
holder.collectionName.setText(sign.getLableName().replace("-", ""));
holder.createTime.setText(sign.getCreateTime());
if (sign.getShow()) {
holder.stateShow.setText("显示");
} else {
holder.stateShow.setText("隐藏");
}
//查询表里对应该item数据
final CollectionEditSelectState oldSelectStates = collectionEditSelectStateDao.queryBuilder()
.where(CollectionEditSelectStateDao.Properties.Position.eq(position)).unique();
if (oldSelectStates != null) {
if (oldSelectStates.getIsChecked()) {
holder.checkBox.setChecked(true);
} else {
holder.checkBox.setChecked(false);
}
}
holder.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
CollectionEditSelectState editSelectState = new CollectionEditSelectState();
if (isChecked) {//将操作状态计入表中
editSelectState.setIsChecked(true);
editSelectState.setIsShow(sign.getShow());
editSelectState.setLableId(sign.getLableId());
editSelectState.setPosition(position);
} else {
editSelectState.setIsChecked(false);
editSelectState.setIsShow(sign.getShow());
editSelectState.setLableId(sign.getLableId());
editSelectState.setPosition(position);
}
if (oldSelectStates == null) {
collectionEditSelectStateDao.insert(editSelectState);
} else {
//说明之前已插入，需做更新操作
editSelectState.setId(oldSelectStates.getId());
collectionEditSelectStateDao.update(editSelectState);
}
// notifyDataSetChanged();
}
});
//全选操作
if (operationType.equalsIgnoreCase(ProjectConstant.SELECT_ALL)) {
holder.checkBox.setChecked(true);
} else if (operationType.equalsIgnoreCase(ProjectConstant.SELECT_INVERT)) {//反选操作
if (oldSelectStates == null) {
holder.checkBox.setChecked(true);
} else {//不为空，表示之前对该item进行了操作
if (oldSelectStates.getIsChecked()) {//若为选中状态
holder.checkBox.setChecked(false);
} else {
holder.checkBox.setChecked(true);
}
}
} else if (operationType.equalsIgnoreCase(ProjectConstant.SET_STATE)) {//状态修改
if (oldSelectStates != null) {
if (oldSelectStates.getIsChecked()) {//处理被选中的
if (sign.getShow()) {//若为显示
sign.setShow(false);
} else {
sign.setShow(true);
}
//更新表结构
collectionEditActivty.getSession().getSignDao().update(sign);
// EventBus.getDefault().post(MessageWrap.getInstance("test"));
}
}
} else if (operationType.equalsIgnoreCase(ProjectConstant.DELETE_ITEM)) {//item删除
if (oldSelectStates != null) {
if (oldSelectStates.getIsChecked()) {
collectionEditActivty.getSession().getSignDao().delete(sign);
collectionEditSelectStateDao.deleteAll();
/*collectionEditSelectStateDao.delete( collectionEditSelectStateDao.queryBuilder().where(CollectionEditSelectStateDao.
Properties.LableId.eq(sign.getLableId())).unique());*/
}
}
}
return convertView;
}
class ViewHolder {
TextView collectionName;//标签名
TextView createTime;//标签创建时间
TextView stateShow;//状态是否显示
LinearLayout labelEdit;//item标签编辑
CheckBox checkBox;
}
}
表结构：
package com.ys.dzyjdc.about.entity;
import org.greenrobot.greendao.annotation.Entity;
import org.greenrobot.greendao.annotation.Generated;
import org.greenrobot.greendao.annotation.Id;
@Entity
public class CollectionEditSelectState {
@Id(autoincrement = true)
private Long id;
private int position;//离线地图所在position位置
private boolean isChecked;//当前是否选中
private String lableId;//标签id
private Boolean isShow;//是否显示
public Boolean getIsShow() {
return this.isShow;
}
public void setIsShow(Boolean isShow) {
this.isShow = isShow;
}
public String getLableId() {
return this.lableId;
}
public void setLableId(String lableId) {
this.lableId = lableId;
}
public boolean getIsChecked() {
return this.isChecked;
}
public void setIsChecked(boolean isChecked) {
this.isChecked = isChecked;
}
public int getPosition() {
return this.position;
}
public void setPosition(int position) {
this.position = position;
}
public Long getId() {
return this.id;
}
public void setId(Long id) {
this.id = id;
}
@Generated(hash = 703581384)
public CollectionEditSelectState(Long id, int position, boolean isChecked,
String lableId, Boolean isShow) {
this.id = id;
this.position = position;
this.isChecked = isChecked;
this.lableId = lableId;
this.isShow = isShow;
}
@Generated(hash = 1449411871)
public CollectionEditSelectState() {
}
}