Android开发之实现省市区三级联动

来源：互联网发布：人脸测年龄软件编辑：程序博客网时间：2024/06/08 12:36

最近项目要做省市区三级联动效果，今天我来实现一下。先看效果图：
这里写图片描述
1，在project的build.gradle添加如下代码：

allprojects {    repositories {        jcenter()        maven { url "https://jitpack.io" }    }}

2，在app/build.gradle文件中添加如下代码：

compile 'com.github.open-android:CityPickerWebView:0.1.0'

3，简单的布局文件：

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.classical.example_citypicker.MainActivity">    <TextView        android:id="@+id/tv_show"        android:text="请选择您所在的省市区"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />    <Button        android:id="@+id/btn_selector"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="请选择"/></LinearLayout>

4.在代码中使用：

package com.classical.example_citypicker;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView;import me.leefeng.citypicker.CityPicker;import me.leefeng.citypicker.CityPickerListener;public class MainActivity extends AppCompatActivity implements CityPickerListener {    private TextView mShow;    private Button mSelector;    private CityPicker cityPicker;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        cityPicker = new CityPicker(MainActivity.this,this);        mSelector = (Button)findViewById(R.id.btn_selector);        mShow = (TextView)findViewById(R.id.tv_show);        mSelector.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                cityPicker.show();            }        });    }    @Override    public void getCity(String s) {        mShow.setText(s);    }    @Override    public void onBackPressed() {        if (cityPicker.isShow()) {            cityPicker.close();            return;        }        super.onBackPressed();    }}

好了，到此结束。如果你的项目中，正好有这么个需求功能，尽管拿去，不用谢！

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