android一步步实现dialog选择框，支持单选和多选

前提：需要先导入baseReclyAdapterlibrary的model点击打开链接

1、创建dialog

package com.yann.yanndemo.dialog;

import android.app.AlertDialog;
import android.content.Context;
import android.os.Bundle;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.Button;

import com.chad.library.adapter.base.helper.RecyclerViewHelper;
import com.yann.yanndemo.R;
import com.yann.yanndemo.adapter.DialogSelectorAdapter;
import com.yann.yanndemo.entity.SimpleListItemEntity;

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

/**
* Created by wyy on 2018/1/20.
*/

public class DialogSelector extends AlertDialog implements DialogSelectorAdapter.OnItemClickListener {
private RecyclerView rv_selector_branch;
private OnSelectorListener cdListener;
private List<SimpleListItemEntity> mSimpleListItemEntity = new ArrayList<>();
private List<SimpleListItemEntity> selectorSimpleListItemEntity = new ArrayList<>();
private DialogSelectorAdapter mSelectorBranchAdapter;
private Context context;
private Button btn_cancel;
private Button btn_ok;
private String isProcessVariable;

public DialogSelector(Context context, List<SimpleListItemEntity> mSimpleListItemEntity, String isProcessVariable, OnSelectorListener cdListener) {
super(context);
this.context = context;
this.cdListener = cdListener;
this.mSimpleListItemEntity = mSimpleListItemEntity;
this.isProcessVariable = isProcessVariable;    //1为单选，否则为多选
}

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.dialog_selector);
this.setCanceledOnTouchOutside(true); // 点击外部会消失
InitViews();
}

private void InitViews() {
rv_selector_branch = (RecyclerView) findViewById(R.id.rv_selector);
mSelectorBranchAdapter = new DialogSelectorAdapter(R.layout.selector_branch_item, isProcessVariable.equals("1") ? 1 : 0);
mSelectorBranchAdapter.setOnBranchItemClickListener(this);
RecyclerViewHelper.initRecyclerViewV(context, rv_selector_branch, true, mSelectorBranchAdapter);
mSelectorBranchAdapter.setNewData(mSimpleListItemEntity);
btn_cancel = (Button) findViewById(R.id.btn_cancel);
btn_ok = (Button) findViewById(R.id.btn_ok);
btn_cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cdListener.cancel();
}
});
btn_ok.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for (int i = 0; i < mSimpleListItemEntity.size(); i++) {
if (mSimpleListItemEntity.get(i).isSelector()) {
selectorSimpleListItemEntity.add(mSimpleListItemEntity.get(i));
}
}
cdListener.getSelectorData(selectorSimpleListItemEntity);

}
});
}

@Override
public void onItemClick(int position) {
if (isProcessVariable.equals("1")) {
for (int i = 0; i < mSimpleListItemEntity.size(); i++) {
if (i == position) {
if (!mSimpleListItemEntity.get(i).isSelector()) {
mSimpleListItemEntity.get(i).setSelector(true);
}
} else {
mSimpleListItemEntity.get(i).setSelector(false);
}
}
} else {
boolean temp = !mSimpleListItemEntity.get(position).isSelector();
mSimpleListItemEntity.get(position).setSelector(temp);
}
mSelectorBranchAdapter.setNewData(mSimpleListItemEntity);
}

public interface OnSelectorListener {
void getSelectorData(List<SimpleListItemEntity> trees);

void cancel();
}
}

添加dialog布局文件dialog_selector

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">

<android.support.v7.widget.RecyclerView
android:id="@+id/rv_selector"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>

<TextView
android:id="@+id/tv_bottom_line"
android:layout_width="match_parent"
android:layout_height="@dimen/leave_line_height"
android:layout_above="@+id/ll_bottom_btn"
android:background="@color/leave_add_line"/>

<LinearLayout
android:id="@+id/ll_bottom_btn"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_alignParentBottom="true"
android:orientation="horizontal">

<Button
android:id="@+id/btn_cancel"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@drawable/refer_tree_cancel_btn"
android:text="@string/cancel"
android:textColor="@color/color_232323"/>

<Button
android:id="@+id/btn_ok"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="@drawable/refer_tree_ok_btn"
android:text="@string/ok"
android:textColor="@color/white"/>

</LinearLayout>

</RelativeLayout>
</RelativeLayout>

二、新建弹出框列表适配器

package com.yann.yanndemo.adapter;

import android.support.annotation.LayoutRes;
import android.view.View;
import android.widget.CheckBox;
import android.widget.RadioButton;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.chad.library.adapter.base.BaseQuickAdapter;
import com.chad.library.adapter.base.BaseViewHolder;
import com.yann.yanndemo.R;
import com.yann.yanndemo.entity.SimpleListItemEntity;

/**
* Created by wyy on 2018/1/20.
*/

public class DialogSelectorAdapter extends BaseQuickAdapter<SimpleListItemEntity, BaseViewHolder> {

private static final String TAG = DialogSelectorAdapter.class.getSimpleName();
private OnItemClickListener mOnItemClickListener;
private int isSingle = 1;    //为1的话为单选，默认为单选，否则的话为多选
public DialogSelectorAdapter(@LayoutRes int layoutResId, int type) {
super(layoutResId);
this.isSingle = type;
}

public void setOnBranchItemClickListener(OnItemClickListener onItemClickListener) {
mOnItemClickListener = onItemClickListener;
}

@Override
protected void convert(BaseViewHolder helper, SimpleListItemEntity item, final int position) {
RelativeLayout rootView = helper.getView(R.id.rl_branch_item_root);
TextView name = helper.getView(R.id.txt_tree_name);
CheckBox cb_contact = helper.getView(R.id.cb_contact);
RadioButton rb_contact = helper.getView(R.id.rb_contact);
rootView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mOnItemClickListener.onItemClick(position);
}
});
name.setText(item.getName());
if (isSingle == 1) {
rb_contact.setChecked(item.isSelector());
} else {
cb_contact.setVisibility(View.VISIBLE);
rb_contact.setVisibility(View.GONE);
cb_contact.setChecked(item.isSelector());
}
}

public interface OnItemClickListener {
void onItemClick(int position);
}
}

添加适配器布局文件selector_branch_item

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/rl_branch_item_root"
android:layout_width="match_parent"
android:layout_height="50dp">

<TextView
android:id="@+id/txt_tree_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/margins"
android:textColor="@color/common_personInfo_text_bg"
android:textSize="16sp"
tools:text="阿里巴巴与四十大盗"/>

<CheckBox
android:id="@+id/cb_contact"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_marginRight="@dimen/margins"
android:button="@drawable/check_remember"
android:focusable="false"
android:clickable="false"
android:textColor="#b2b2b2"
android:textSize="16sp"
android:visibility="gone"/>

<RadioButton
android:id="@+id/rb_contact"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:layout_marginRight="@dimen/margins"
android:button="@drawable/radio_selector"
android:focusable="false"
android:clickable="false"
android:textColor="#b2b2b2"
android:textSize="16sp"/>
</RelativeLayout>

创建实体类

package com.yann.yanndemo.entity;

/**
* Created by wyy on 2018/1/20.
*/

public class SimpleListItemEntity {
private String id;
private String name;
private boolean isSelector = false;

public String getId() {
return id;
}

public void setId(String id) {
this.id = id;
}

public String getName() {
return name;
}

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

public boolean isSelector() {
return isSelector;
}

public void setSelector(boolean selector) {
isSelector = selector;
}
}

三、创建一个DialogHelper管理dialog

package com.yann.yanndemo.dialog;

import android.content.Context;

import com.yann.yanndemo.R;
import com.yann.yanndemo.entity.SimpleListItemEntity;

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

/**
* Created by wyy on 2018/1/21.
*/

public class DialogHelper {
private static final String TAG = DialogHelper.class.getSimpleName();
private Context context;
private int style = R.style.CustomDialog;//默认style
private String title = "";//标题
private List<SimpleListItemEntity> mSimpleListItemEntity = new ArrayList<>();    //选择列表的数据
private OnHelperSelectorListener onSelectorListener;
private DialogSelector mDialogSelector;
private String isProcessVariable;    //判断单选还是多选

private DialogHelper(Context context) {
this.context = context;
}

/**
* 初始化
*
* @param context
* @return
*/
public static DialogHelper create(Context context) {
return new DialogHelper(context);
}

/**
* 可选，设置dialog的style，一般情况下用默认的
*
* @param style
* @return
*/
public DialogHelper style(int style) {
this.style = style;
return this;
}

/**
* 设置标题，建议使用的时候都配置
*
* @param title
* @return
*/
public DialogHelper title(String title) {
this.title = title;
return this;
}

/**
* 设置部门列表的数据
*
* @param contactTreeList
* @return
*/
public DialogHelper setSelectorData(List<SimpleListItemEntity> contactTreeList) {
this.mSimpleListItemEntity = contactTreeList;
return this;
}

/**
* 设置选择部门监听
*
* @param onSelectorListener
* @return
*/
public DialogHelper setSelectorListener(OnHelperSelectorListener onSelectorListener) {
this.onSelectorListener = onSelectorListener;
return this;
}

public DialogHelper setIsProcessVariable(String isProcessVariable) {
this.isProcessVariable = isProcessVariable;
return this;
}

public void showSelectorDialog() {
mDialogSelector = new DialogSelector(context, mSimpleListItemEntity, isProcessVariable, new DialogSelector.OnSelectorListener() {
@Override
public void getSelectorData(List<SimpleListItemEntity> trees) {
mDialogSelector.dismiss();
onSelectorListener.getSelectorPosition(trees);
}

@Override
public void cancel() {
mDialogSelector.dismiss();
}
});
mDialogSelector.setCancelable(false);
mDialogSelector.show();
}

public interface OnHelperSelectorListener {
void getSelectorPosition(List<SimpleListItemEntity> trees);
}

}

最后在activity中调用dialog，实现相关的点击事件

package com.yann.yanndemo.ui.dialog;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.yann.yanndemo.R;
import com.yann.yanndemo.dialog.DialogHelper;
import com.yann.yanndemo.entity.SimpleListItemEntity;

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

public class DialogActivity extends Activity implements View.OnClickListener, DialogHelper.OnHelperSelectorListener {
private static final String TAG = DialogActivity.class.getSimpleName();
private Button btn_dialog_selector;

//选择弹出框
private List<SimpleListItemEntity> mSimpleListItemEntity = new ArrayList<>();
private String selectorBranchName = "";
private String branchNames = "";
private static final String isProcessVariable = "1";    //这里1为单选，否则为多选

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dialog);
initView();
initData();
}

private void initData() {
for (int i = 0; i < 6; i++) {
SimpleListItemEntity simpleListItemEntity = new SimpleListItemEntity();
simpleListItemEntity.setId(i + "");
simpleListItemEntity.setName("星期" + i);
mSimpleListItemEntity.add(simpleListItemEntity);
}

}

private void initView() {
btn_dialog_selector = (Button) findViewById(R.id.btn_dialog_selector);
btn_dialog_selector.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_dialog_selector:
DialogHelper.create(this).setIsProcessVariable(isProcessVariable).setSelectorData(mSimpleListItemEntity).setSelectorListener(this)
.showSelectorDialog();
break;
default:
break;
}
}

/**
* 获取选择弹出框返回的数据
*
* @param trees
*/
@Override
public void getSelectorPosition(List<SimpleListItemEntity> trees) {
StringBuilder branchIdBuilder = new StringBuilder();
StringBuilder branchNameBuilder = new StringBuilder();
if (!selectorBranchName.equals(" ")) {
selectorBranchName = " ";
}
branchNames = "";
if (trees != null && !trees.isEmpty()) {
for (int i = 0; i < trees.size(); i++) {
String branchId = trees.get(i).getId();
if (i == 0) {
branchIdBuilder.append(branchId);
branchNameBuilder.append(trees.get(i).getName());
} else {
branchIdBuilder.append("," + branchId);
branchNameBuilder.append("," + trees.get(i).getName());
}
for (int j = 0; j < mSimpleListItemEntity.size(); j++) {
if (branchId.equals(mSimpleListItemEntity.get(j).getId())) {
mSimpleListItemEntity.get(j).setSelector(true);
}
}
}
branchNames = branchNameBuilder.toString();
selectorBranchName = " " + branchNames;
}
Toast.makeText(this, selectorBranchName, Toast.LENGTH_LONG).show();
Log.d(TAG, "selectorBranchName===" + selectorBranchName);
}
}

以上可以实现弹出框的默认选择值，保存选中状态，实体类和适配器的布局都可以根据项目的实际情况自定义，效果图如下：



demo地址