安卓天气预报app(四)——搜索城市、完善页面

android:completionThreshold="1" //输入一个字符就给出提示
android:dropDownHorizontalOffset：//提示菜单与文本起始的水平间距
android:dropDownHeight：//设置提示框的高度，太小可能会遮盖部分提示，不过可以上下滚动显示
android:dropDownWidth：//设置提示框的宽度，太小可能会遮盖部分提示
android:imeOptions="actionSearch" //键盘点击搜索事件

<LinearLayout
       android:layout_width="380dp"
       android:layout_height="40dp"
       android:gravity="center_vertical"
       android:layout_gravity="center"
       android:background="@drawable/blackground">
       <LinearLayout
           android:layout_width="0dp"
           android:layout_height="30dp"
           android:layout_marginRight="12dp"
           android:layout_weight="1"
           android:gravity="center_vertical"
           android:paddingLeft="12dp"
           android:paddingRight="12dp">
           <!--输入框-->
           <AutoCompleteTextView
               android:id="@+id/edit_query"
               android:layout_width="match_parent"
               android:layout_height="wrap_content"
               android:layout_weight="1"
               android:background="@null"
               android:completionThreshold="1"
               android:dropDownHorizontalOffset="5dp"
               android:dropDownWidth="200dp"
               android:hint="请输入城市名称"
               android:imeOptions="actionSearch"
               android:paddingLeft="8dp"
               android:paddingRight="4dp"
			android:textColor="@color/white"
               android:singleLine="true"
               android:textSize="18sp" />
           <!--搜索图标-->
           <ImageView
               android:layout_width="26dp"
               android:layout_height="26dp"
               android:id="@+id/iv_search"
               android:src="@mipmap/icon_search" />
       </LinearLayout>
   </LinearLayout>

[{
		"pname": "北京市",
		"city": [{
			"name": "北京市",
			"area": [
				"东城区",
				"西城区",
				.........
			]
		}]
	},
	{
		"pname": "天津市",
		"city": [{
			"name": "天津市",
			"area": [
				"和平区",
				"河东区",
				.........
			]
		}]
	},
	{
		"pname": "河北省",
		"city": [{
				"name": "石家庄市",
				"area": [
					"长安区",
					"桥西区",
					.........
				]
			},
			{
				"name": "唐山市",
				"area": [
					"路北区",
					"路南区",
					.........
				]
			},
			{
				"name": "秦皇岛市",
				"area": [
					"海港区",
					"山海关区",
					.........
				]
			},
			.........

public class ProvinceBean {//省
    private String pname;
    private List<CityBean> city;
	//set、get、toString、构造。。。。。。
}

public class CityBean {
    private String name;
    private String[] area;//县/区
    private String tem;//方便数据库操作
    private String updateTime;//方便数据库操作
    //set、get、toString、构造。。。。。。

InputStream inputStream = getResources().getAssets().open("City.txt");
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder sb = new StringBuilder();
String lines = bufferedReader.readLine();
while (lines != null) {
	sb.append(lines);
	lines = bufferedReader.readLine();
}
String resultCity = sb.toString();
Log.d("SelectCity", "resultCity>>>>>>>>>" + resultCity);

JSONArray ja= new JSONArray(resultCity);
//获取省，封装
for (int i = 0; i < ja.length(); i++) {//这个长度就是省的个数
	JSONObject provinceJsonObject = ja.getJSONObject(i);
	String provinceName = provinceJsonObject.getString("pname");
	ProvinceBean provinceBean = new ProvinceBean();
	provinceBean.setPname(provinceName);
	mProvinceBeanList.add(provinceBean);
	//添加市,也可以用省里封装的List<CityBean>，直接set，以后不免用到CityBean，就1并封装了
	JSONArray cityArray = provinceJsonObject.getJSONArray("city");
	for (int j = 0; j < cityArray.length(); j++) {
		JSONObject cityObj = cityArray.getJSONObject(j);
		String cityName = cityObj.getString("name");
		CityBean cityBean = new CityBean();
		cityBean.setName(cityName);
		mCityBeanList.add(cityBean);
		}
		// 添加区/县待拓展。。。。。。。。。
	}
	Log.d("SelectCity", "mCityBeanList>>>>>>>>>" + mCityBeanList.toString());

query = (AutoCompleteTextView) findViewById(R.id.edit_query);

String[] cityArray = new String[mCityBeanList.size()];
       for (int i = 0; i < mCityBeanList.size(); i++) {
       //城市名称定义为一个数组
           cityArray[i] = mCityBeanList.get(i).getName().substring(0, mCityBeanList.get(i).getName().length() - 1);
       }

adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, cityArray);
query.setAdapter(adapter);//

	ivSearch = (ImageView) findViewById(R.id.iv_search);
        ivSearch.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
            //拿到输入框的值
                String cityName = query.getText().toString();
//                ToastUtil.showLongToast(SelectCityActivity.this, cityName);
                Intent intent = new Intent(SelectCityActivity.this, MainActivity.class);
                intent.putExtra("inputCity", cityName);
                setResult(200, intent);
                finish();
            }
        });

final JSONArray Data = new JSONArray(resultCity);
            //获取省，封装
            for (int i = 0; i < Data.length(); i++) {
                JSONObject provinceJsonObject = Data.getJSONObject(i);
                String provinceName = provinceJsonObject.getString("pname");
                ProvinceBean provinceBean = new ProvinceBean();
                provinceBean.setPname(provinceName);
                mCityBeanList = new ArrayList<>();
                //添加市
                final JSONArray cityArray = provinceJsonObject.getJSONArray("city");
                for (int j = 0; j < cityArray.length(); j++) {
                    JSONObject cityObj = cityArray.getJSONObject(j);
                    String cityName = cityObj.getString("name");
                    CityBean cityBean = new CityBean();
                    cityBean.setName(cityName);
//                    mCityNameList.add(cityName);
                    mCityBeanList.add(cityBean);
                    actureCityBeanList.add(cityBean);
                }
                provinceBean.setCity(mCityBeanList);
                mProvinceBeanList.add(provinceBean);

                // 添加县待拓展。。。。。。。。。
            }