//studio匯入依賴

compile 'liji.library.dev:citypickerview:0.3.0'

//佈局檔案

   <Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="請選擇省市區"
android:id="@+id/go"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/text"
 
android:text="請選擇結果"
android:layout_marginTop="30dp"/>

//MainActivity

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private Button go;
    private TextView text;
@Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
setContentView(R.layout.activity_main);
initView();
}

    private void initView() {
        go = (Button) findViewById(R.id.go);
text = (TextView) findViewById(R.id.text);
go.setOnClickListener(this);
}

    @Override
public void onClick(View v) {
        switch (v.getId()) {
            case R.id.go
 
:
                CityPicker cityPicker=new CityPicker.Builder(MainActivity.this).textSize(20)
                        .textColor(Color.parseColor("#000000"))
                        .provinceCyclic(true)
                        .cityCyclic(false)
                        .visibleItemsCount(7)
                        .itemPadding(10)
                        .build();
cityPicker.show();
cityPicker.setOnCityItemClickListener(new CityPicker.OnCityItemClickListener() {
                    @Override
public void onSelected(String... citySelected) {
                        text.setText("選擇結果：\n省"+citySelected[0]+"\n市："+citySelected[1]+"\n區："
+citySelected[2]+"\n郵編："+citySelected[3]);
}
                });
                break;
}
    }
}

//網址

https://github.com/crazyandcoder/citypicker