Instead of introducing the layout file, we will directly demonstrate the implementation code:

package com.mly.panhouye.anchong.activity;

import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.TextView;
import com.lljjcoder.citypickerview.widget.CityPicker;
import com.mly.panhouye.anchong.R;
import com.mly.panhouye.anchong.entity.Anchong_Address;
import com.mly.panhouye.anchong.view.TitleBarView;
import static com.mly.panhouye.anchong.utils.Constant.NEWADDRESS;

public class NewAddressActivity extends BaseActivity {
    TitleBarView address_manager_titleBar;
    EditText new_address_name,new_address_phone,new_address_address;
    Anchong_Address newAddress = new Anchong_Address();
    TextView new_address_area;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_new_address);
        initView();
    }
    //Texview Click events
    public void chooseArea(View view) {
        //Judging Hidden State of Input Method
        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        if (imm.isActive()) {
            imm.hideSoftInputFromWindow(view.getWindowToken(),
                    InputMethodManager.HIDE_NOT_ALWAYS);
            selectAddress();//call CityPicker Select region

        }
    }
    private void selectAddress() {
        CityPicker cityPicker = new CityPicker.Builder(NewAddressActivity.this)
                .textSize(14)
                .title("Address selection")
                .titleBackgroundColor("#FFFFFF")
                .titleTextColor("#696969")
                .confirTextColor("#696969")
                .cancelTextColor("#696969")
                .province("Jiangsu Province")
                .city("Changzhou City")
                .district("Tianning District")
                .textColor(Color.parseColor("#000000"))
                .provinceCyclic(true)
                .cityCyclic(false)
                .districtCyclic(false)
                .visibleItemsCount(7)
                .itemPadding(10)
                .onlyShowProvinceAndCity(false)
                .build();
        cityPicker.show();
        //Monitoring method to get the result of selection
        cityPicker.setOnCityItemClickListener(new CityPicker.OnCityItemClickListener() {
            @Override
            public void onSelected(String... citySelected) {
                //Province
                String province = citySelected[0];
                //City
                String city = citySelected[1];
                //District and County (if two levels of action are set, then the item returns empty)
                String district = citySelected[2];
                //Zip code
                String code = citySelected[3];
                //by TextView assignment
                new_address_area.setText(province.trim() + "-" + city.trim() + "-" + district.trim());
            }
        });
    }
    @Override
    protected void initView() {
        new_address_name = (EditText) findViewById(R.id.new_address_name);
        new_address_phone = (EditText) findViewById(R.id.new_address_phone);
        new_address_address = (EditText) findViewById(R.id.new_address_address);
        new_address_area = (TextView) findViewById(R.id.new_address_area);
    }
}

4. Instructions for Use

From github address: crazyandcoder/citypicker

Return result

The information of the selected provincial and urban areas can be obtained only by passing in Context, and the results can be returned to four items, which can be selected according to their actual needs.

1. citySelected[0]: Provincial Information
2. City Selected [1]: Represents: City Information
3. citySelected[2]: Indicates: District and County Information
4. citySelected[3]: Represents: zip code information

Method description

1. textSize (Roller text size, int type, default 18)
2. Title (selector title, default to Select Area)
3. backgroundPop (background, default translucent, 16-bit color code with alpha value, such as 0xa0ffffff)
4. titleBackgroundColor (title bar background, default gray, #C7C7C7)
5. confirTextColor (confirm button font color, default to system color Primary color value)
6. cancelTextColor (cancel button font color, default to system color Primary color value)
7. Province (default display province, item location directly located after display selector)
8. city (default display market, item location directly located after display selector)
9. district (default display area, item location directly located after the selector is displayed)
10. textColor (Roller text color, int type, default 0xFF5858)
11. Provce Cyclic
12. City Cyclic
13. Distct Cyclic
14. visibleItemsCount (Number of item s displayed by the wheel, int type, default 5)
15. itemPadding
16. OnlyShow Province AndCity (boolean flag). (Does it show only two levels of action between provinces and municipalities, removing districts or counties)
17. TitleTextColor (header text color, default: # E9E9E9)