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全部代码https://gitee.com/Cutele/weather-forecast-v1 增加了发送短信等功能
b站视频链接 主页面写的闪退了，就不记录了。 主要是借助适配器显示自己想要显示的页面。
城市管理
效果图
activity_city_manager.xml
item_city_manager.xml
CityManagerActivity.java
package com.example.weather.city_manager;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import com.example.weather.R;
import com.example.weather.db.DBManager;
import com.example.weather.db.DatabaseBean;
import java.util.ArrayList;
import java.util.List;
public class CityManagerActivity extends AppCompatActivity implements View.OnClickListener {
ImageView addIv,backIv,deleteIv;
ListView cityLv;
List mDatas;//列表数据源
String[]hotCitys = {"北京","上海","广州","深圳","珠海","佛山","南京","苏州","厦门","长沙","成都","福州",
"杭州","武汉","青岛","西安","太原","沈阳","重庆","天津","南宁"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_city_manager);
cityLv = findViewById(R.id.city_lv);
mDatas = new ArrayList();
mDatas.add("北京");
mDatas.add("上海");
mDatas.add("广州");
mDatas.add("深圳");
cityLv.setAdapter(new CityManagerAdapter(this,mDatas));
}
@Override
public void onClick(View view) {
}
}
CityManagerAdapter.java
自定义适配器
package com.example.weather.city_manager;
import android.content.Context;
import android.net.Uri;
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.weather.R;
import com.example.weather.db.DatabaseBean;
import com.example.weather.juhe.JHTempBean;
import com.google.gson.Gson;
import java.util.List;
public class CityManagerAdapter extends BaseAdapter {
Context context;
List mDatas;
public CityManagerAdapter(Context context, List mDatas) {
this.context = context;
this.mDatas = mDatas;
}
@Override
public int getCount() {
return mDatas.size();
}
@Override
public Object getItem(int i) {
return mDatas.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
ViewHolder holder = null;
View convertView = null;
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(R.layout.item_city_manager,null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
String bean = mDatas.get(i);
holder.cityTv.setText(bean);
return convertView;
}
static class ViewHolder{
TextView cityTv,conTv,currentTempTv,windTv,tempRangeTv;
public ViewHolder(View itemView){
cityTv = itemView.findViewById(R.id.item_city_tv_city);
conTv = itemView.findViewById(R.id.item_city_tv_condition);
currentTempTv = itemView.findViewById(R.id.item_city_tv_temp);
windTv = itemView.findViewById(R.id.item_city_wind);
tempRangeTv = itemView.findViewById(R.id.item_city_temprange);
}
}
}
城市删除
效果图
activity_delete_city.xml
item_deletecity.xml
DeleteCityActivity.java
package com.example.weather.city_manager;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import com.example.weather.R;
import java.util.ArrayList;
import java.util.List;
public class DeleteCityActivity extends AppCompatActivity {
ListView deleteLv;
String[] hotCitys = {"北京","上海","广州","深圳","珠海","佛山","南京","苏州","厦门","长沙","成都","福州",
"杭州","武汉","青岛","西安","太原","沈阳","重庆","天津","南宁"};
List mDatas;//列表数据源
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_delete_city);
deleteLv = findViewById(R.id.delete_lv);//找到组件
//传入数据
mDatas = new ArrayList();
mDatas.add("北京");
mDatas.add("上海");
mDatas.add("广州");
mDatas.add("深圳");
//设置适配器
deleteLv.setAdapter(new DeleteCityAdapter(this,mDatas));
}
}
DeleteCityAdapter.java
package com.example.weather.city_manager;
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.weather.R;
import java.util.List;
public class DeleteCityAdapter extends BaseAdapter {
Context context;
List mDatas;
ListdeleteCitys;
private LayoutInflater inflater;
public DeleteCityAdapter(Context context, List mDatas) {
this.context = context;
this.mDatas = mDatas;
}
@Override
public int getCount() {
return mDatas.size();
}
@Override
public Object getItem(int i) {
return mDatas.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
DeleteCityAdapter.ViewHolder holder = null;
View convertView = null;
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(R.layout.item_deletecity,null);
holder = new DeleteCityAdapter.ViewHolder(convertView);
convertView.setTag(holder);
}else{
holder = (DeleteCityAdapter.ViewHolder) convertView.getTag();
}
String bean = mDatas.get(i);
holder.cityTv.setText(bean);
return convertView;
}
class ViewHolder{
TextView cityTv,conTv,currentTempTv,windTv,tempRangeTv;
public ViewHolder(View itemView){
cityTv = itemView.findViewById(R.id.item_delete_tv);
}
}
}
城市搜索
效果图
activity_search_city.xml
item_hotcity.xml
SearchCityActivity.java
package com.example.weather.city_manager;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.ImageView;
import com.example.weather.R;
public class SearchCityActivity extends AppCompatActivity implements View.OnClickListener{
EditText searchEt;
ImageView submitIv;
GridView searchGv;
String[]hotCitys = {"北京","上海","广州","深圳","珠海","佛山","南京","苏州","厦门","长沙","成都","福州",
"杭州","武汉","青岛","西安","太原","沈阳","重庆","天津","南宁"};
private ArrayAdapter adapter;
String city;
@Override
protected void onCreate(Bundle savedInstanceState) {
//setContentView(R.layout.activity_search_city);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search_city);
searchEt = findViewById(R.id.search_et);
submitIv = findViewById(R.id.search_iv_submit);
searchGv = findViewById(R.id.search_gv);
submitIv.setOnClickListener(this);
// 设置适配器
adapter = new ArrayAdapter(this, R.layout.item_hotcity, hotCitys);
searchGv.setAdapter(adapter);
// setListener();
}
@Override
public void onClick(View view) {
}
}
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