Android中省份、城市、区县三级联动

Android中省市区的三级联动

本文链接：https://blog.csdn.net/qq_34915398/article/details/82558627

效果图：

三级联动效果图.jpg

1、添加依赖

implementation 'liji.library.dev:citypickerview:3.1.12'

2、Activity设置

private CityPickerView mPicker = new CityPickerView();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.delivery_add_new);
    mPicker.init(this); //必须！  初始化城市数据     
    ……
}

3. 设置点击事件

      deliveryAddDistrict.setOnClickListener(this);
   
    @Override
    public void onClick(View view) {
    if (view == deliveryAddDistrict){  //地区联动选择
        //添加默认的配置，可以自己修改
        CityConfig cityConfig = new CityConfig.Builder()
                .province("北京") //设置默认显示省份
                .build();
        mPicker.setConfig(cityConfig);
        //监听选择点击事件及返回结果
        mPicker.setOnCityItemClickListener(new OnCityItemClickListener() {
            @Override
            public void onSelected(ProvinceBean province, CityBean city, DistrictBean district) {
                //省份
                if (province != null && city != null && district != null) {
                    deliveryAddDistrict.setText(province.toString()+"  "+city.toString()+"  "+district.toString());
                }
            }
   
            @Override
            public void onCancel() {
                ToastUtils.showLongToast(DeliveryAddNewActivity.this, "已取消");
            }
        });
        //显示
        mPicker.showCityPicker( );
    }