Android学习笔记之横向二级菜单实现

/**
*  @param textArray: ListView中item对应的text值的集合..
*  @param viewArray: 当前Layout中需要加入的View..
* */
@SuppressLint("ResourceAsColor")
public void setValue(ArrayList<String> textArray, ArrayList<View> viewArray) {
if (mContext == null) {
return;
}
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

mTextList = textArray;
for (int i = 0; i < viewArray.size(); i++) {

//这里就添加了一个View..
final RelativeLayout r = new RelativeLayout(mContext);
int maxHeight = (int) (displayHeight * 0.5);   //定义布局的高度..

RelativeLayout.LayoutParams rl = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, maxHeight);
r.addView(viewArray.get(i), rl);  //在布局中添加View并指定参数

mViewList.add(r);
r.setTag(SMALL);

//定义最上方的按钮,并在布局中添加这个按钮。并设置按钮的text
ToggleButton tButton = (ToggleButton) inflater.inflate(R.layout.toggle_button, this, false);
addView(tButton);
mToggleList.add(tButton);
tButton.setTag(i);
tButton.setText(mTextList.get(i));

//用于实现当PopWindow显示时.再次点击收回PopWindow
r.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
onPressBack();
}
});

r.setBackgroundColor(mContext.getResources().getColor(R.color.popup_main_background));

//当按钮被点击后需要触发的监听
tButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {

ToggleButton tButton = (ToggleButton) view;
/** 如果当前点击的按钮与上次的点击不同.则设置当前的按钮处于点击状态 */
if (selectedButton != null && selectedButton != tButton) {
selectedButton.setChecked(false);
}
selectedButton = tButton;
selectPosition = (Integer) selectedButton.getTag();
/** 按钮被点击后,需要触发对应的监听事件.*/
startAnimation();
if (mOnButtonClickListener != null && tButton.isChecked()) {
mOnButtonClickListener.onClick(selectPosition);
}
}
});
}
}

package com.example.view;

import java.util.ArrayList;
import java.util.LinkedList;

import android.content.Context;
import android.util.AttributeSet;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.ListView;

import com.example.adapter.TextAdapter;
import com.example.expandtabview.R;

public class ChildView extends LinearLayout {

private ListView regionListView;   //主ListView
private ListView plateListView;    //子ListView

//主ListView每一个Item对应的text
private String LeftFaString[] = new String[] { "美食", "快餐小吃", "火锅", "海鲜/烧烤",
"特色菜", "香锅/烤鱼", "地方菜", "东南亚菜", "西餐", "日韩料理" };
//子ListView每一个Item对应的text..采用了二维数组的实现方式..
private String LeftCh1String[][] = new String[][] {
{ "全部" },
{ "全部", "中式简餐", "地方小吃", "盖浇饭", "米粉米线", "面馆", "麻辣烫", "黄焖鸡米饭",
"鸭脖卤味", "饺子馄饨", "炸鸡炸串", "包子/粥", "零食", "生煎锅贴", "冒菜" },
{ "全部", "其他火锅" }, { "全部", "小龙虾" }, { "全部" }, { "全部", "香锅", "烤鱼" },
{ "全部", "鲁菜", "川菜", "其他" }, { "全部" },
{ "全部", "意面披萨", "西式快餐", "其他西餐" }, { "全部", "韩式简餐", "韩国料理" } };

//添加主ListView中的数据信息
private ArrayList<String> groups = new ArrayList<String>();

//添加子ListView中的数据信息
private LinkedList<String> childrenItem = new LinkedList<String>();

//稀疏数组
private SparseArray<LinkedList<String>> children = new SparseArray<LinkedList<String>>();
//为ListView设置适配器
private TextAdapter plateListViewAdapter;
private TextAdapter earaListViewAdapter;
//监听事件的设置
private OnSelectListener mOnSelectListener;

private int tEaraPosition = 0;     //用于保存当前主ListView被点击的Item对应的Position.
private int tBlockPosition = 0;       //用于保存当前子ListView被点击的Item对应的Position.

private String showString = "";

public ChildView(Context context) {
super(context);
init(context);
}

public ChildView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}

private void init(Context context) {
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

//加载布局,绑定ID.
inflater.inflate(R.layout.view_region, this, true);
regionListView = (ListView) findViewById(R.id.listView);
plateListView = (ListView) findViewById(R.id.listView2);

//初始化ListView中每一个item对应的text
for(int i=0;i<10;i++){
groups.add(LeftFaString[i]);
LinkedList<String> tItem = new LinkedList<String>();
for(int j=0;j<LeftCh1String[i].length;j++){

tItem.add(LeftCh1String[i][j]);

}
children.put(i, tItem);
}

//主ListView列表项的适配器
earaListViewAdapter = new TextAdapter(context, groups,
R.drawable.choose,
R.drawable.choose_eara_item_selector);
earaListViewAdapter.setTextSize(12);
earaListViewAdapter.setSelectedPositionNoNotify(tEaraPosition);

regionListView.setAdapter(earaListViewAdapter);

earaListViewAdapter
.setOnItemClickListener(new TextAdapter.OnItemClickListener() {

@Override
public void onItemClick(View view, int position) {
if (position < children.size()) {
childrenItem.clear();
//获取这一页的所有数据信息..然后唤醒适配器更新数据
childrenItem.addAll(children.get(position));
plateListViewAdapter.notifyDataSetChanged();
}
}
});

if (tEaraPosition < children.size())
childrenItem.addAll(children.get(tEaraPosition));

//子ListView的适配器
plateListViewAdapter = new TextAdapter(context, childrenItem,
R.drawable.choose_item_right,
R.drawable.choose_plate_item_selector);
plateListViewAdapter.setTextSize(12);
plateListViewAdapter.setSelectedPositionNoNotify(tBlockPosition);
plateListView.setAdapter(plateListViewAdapter);
//设置当Item被点击后触发的监听.
plateListViewAdapter
.setOnItemClickListener(new TextAdapter.OnItemClickListener() {

@Override
public void onItemClick(View view, final int position) {
//获取被点击的Item的文字数据
showString = childrenItem.get(position);
if (mOnSelectListener != null) {

mOnSelectListener.getValue(showString);
}

}
});

if (tBlockPosition < childrenItem.size())
showString = childrenItem.get(tBlockPosition);
setDefaultSelect();

}

//设置当前Item的Position.
public void setDefaultSelect() {
//默认选择的Item项
regionListView.setSelection(tEaraPosition);
plateListView.setSelection(tBlockPosition);
}

public String getShowText() {
return showString;
}

public void setOnSelectListener(OnSelectListener onSelectListener) {
mOnSelectListener = onSelectListener;
}

public interface OnSelectListener {
public void getValue(String showText);
}

}

@SuppressLint("ResourceAsColor") @SuppressWarnings("deprecation")
@Override
public View getView(int position, View convertView, ViewGroup parent) {
TextView view;
if (convertView == null) {
view = (TextView) LayoutInflater.from(mContext).inflate(R.layout.choose_item, parent, false);
} else {
view = (TextView) convertView;
}
view.setTag(position);
String mString = "";
if (mListData != null) {
if (position < mListData.size()) {
mString = mListData.get(position);
}
} else if (mArrayData != null) {
if (position < mArrayData.length) {
mString = mArrayData[position];
}
}
if (mString.contains("不限"))
view.setText("不限");
else
view.setText(mString);
view.setTextSize(TypedValue.COMPLEX_UNIT_SP,textSize);

if (selectedText != null && selectedText.equals(mString)) {
view.setBackgroundDrawable(selectedDrawble);//设置选中的背景图片
} else {
view.setBackgroundDrawable(mContext.getResources().getDrawable(normalDrawbleId));//设置未选中状态背景图片
}
view.setPadding(20, 0, 0, 0);
view.setOnClickListener(onClickListener);
return view;
}

package com.example.expandtabview;

import java.util.ArrayList;

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

import com.example.view.ExpandTabView;
import com.example.view.ChildView;

public class MainActivity extends Activity {

private ExpandTabView expandTabView;
private ArrayList<View> mViewArray = new ArrayList<View>();
private ChildView viewLeft;

@Override
protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initVaule();
initListener();

}

private void initView() {

//初始化控件
expandTabView = (ExpandTabView) findViewById(R.id.expandtab_view);
viewLeft = new ChildView(this);

}

private void initVaule() {

mViewArray.add(viewLeft);

//设置顶部数据信息
ArrayList<String> mTextArray = new ArrayList<String>();
mTextArray.add("全部");
expandTabView.setValue(mTextArray, mViewArray);
expandTabView.setTitle(viewLeft.getShowText(), 0);

}

private void initListener() {

viewLeft.setOnSelectListener(new ChildView.OnSelectListener() {

@Override
public void getValue(String showText) {

onRefresh(viewLeft,showText);

}
});

}

//视图被点击后刷新数据
private void onRefresh(View view, String showText) {

expandTabView.onPressBack();
int position = getPositon(view);
if (position >= 0 && !expandTabView.getTitle(position).equals(showText)) {
expandTabView.setTitle(showText, position);
}
Toast.makeText(MainActivity.this, showText, Toast.LENGTH_SHORT).show();

}

//获取当前的view
private int getPositon(View tView) {
for (int i = 0; i < mViewArray.size(); i++) {
if (mViewArray.get(i) == tView) {
return i;
}
}
return -1;
}
}

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