Android进阶之路

因为现在项目的地址选择器比较low，自己又比较懒，所以就找到了仿京东的地址选择器，观赏几篇博文之后，发现总是被半路卡死，很难一路走到底，所以找到了作者在github的地址，但是作者的功能简介又介绍的不是很详细，总会有一些小的知识点遗漏，到了最后只能非常无奈的查看了源代码，然后实现了自己的功能所需，一些小坑在下方列出，请君观赏。

小坑：
1.文中的展示有俩种方式，第一种是自定义添加到Linearlayout布局中，第二种是以弹框形式展示
2.因作者原始自定义BottomDialog的整体展示不太美观，而代码又限制只又读的权限，故重写了一份BottomDialog，设置了符合自己观赏的BottomDialog
3.android中存在一些自定义的color，使用android.R.color.holo_orange_light进行引用

需掌握知识点：
1.接口回调
2.RecyclerView、ListView
3.自定义Dialog

Effect ：

第一种

第二种

注：
原作者Github地址：https://github.com/smartTop/AddressSelector

如
无法掌握本文知识，可使用以下这篇博文的地址选择器（使用更简单）

http://blog.csdn.net/qq_20451879/article/details/71450981

build (project) :

allprojects {    repositories {        jcenter()        //这个写不写都可以，我注释之后依旧可以正常使用//        maven { url 'https://jitpack.io' }    }}

build (app)：

compile 'com.smarttop:jd-address:1.1.0'

MainActivity :

package com.yl.select.addressselect;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.view.ViewGroup;import android.widget.LinearLayout;import android.widget.TextView;import com.smarttop.library.bean.City;import com.smarttop.library.bean.County;import com.smarttop.library.bean.Province;import com.smarttop.library.bean.Street;import com.smarttop.library.db.manager.AddressDictManager;import com.smarttop.library.utils.LogUtil;import com.smarttop.library.widget.AddressSelector;import com.smarttop.library.widget.OnAddressSelectedListener;public class MainActivity extends AppCompatActivity implements View.OnClickListener, OnAddressSelectedListener, AddressSelector.OnDialogCloseListener {    private LinearLayout mViewcontent;    private TextView mSelectorContent;    private AddressDictManager addressDictManager;    private String provinceCode;    private String cityCode;    private String countyCode;    private String streetCode;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mSelectorContent = (TextView) findViewById(R.id.tv_selector_area);        mViewcontent = (LinearLayout) findViewById(R.id.content);        AddressSelector selector = new AddressSelector(this);        mSelectorContent.setOnClickListener(this);        addressDictManager = selector.getAddressDictManager();        selector.setTextSize(13);        //设置指针颜色        selector.setIndicatorBackgroundColor(android.R.color.holo_orange_light);        //设置字体获得焦点的颜色        selector.setTextSelectedColor(android.R.color.holo_orange_light);        //设置字体没有获得焦点的颜色        selector.setTextUnSelectedColor(android.R.color.holo_blue_light);        //选择监听，用户选取中和选取完毕之后调用此方法        selector.setOnAddressSelectedListener(new OnAddressSelectedListener() {            @Override            public void onAddressSelected(Province province, City city, County county, Street street) {                String address = (province == null ? "" : province.name) + (city == null ? "" : city.name) + (county == null ? "" : county.name) +                        (street == null ? "" : street.name);//                mSelectorContent.setVisibility(View.VISIBLE);                mSelectorContent.setText(address);//                mViewcontent.removeAllViews();            }        });//        如将此处的注释放开，即可全屏显示一次//        View view = selector.getView();//        mViewcontent.addView(view);//        mSelectorContent.setVisibility(View.GONE);    }    private BottomDialog dialog;    @Override    public void onClick(View v) {        if (dialog != null) {            dialog.show();        } else {            dialog = new BottomDialog(this);            //地址选取监听            dialog.setOnAddressSelectedListener(this);            //Dialog监听            dialog.setDialogDismisListener(this);            //设置字体的大小            dialog.setTextSize(14);            //设置指示器的颜色            dialog.setIndicatorBackgroundColor(android.R.color.holo_orange_light);            //设置字体获得焦点的颜色            dialog.setTextSelectedColor(android.R.color.holo_orange_light);            //设置字体没有获得焦点的颜色            dialog.setTextUnSelectedColor(android.R.color.holo_blue_light);            dialog.show();        }    }    @Override    public void onAddressSelected(Province province, City city, County county, Street street) {        provinceCode = (province == null ? "" : province.code);        cityCode = (city == null ? "" : city.code);        countyCode = (county == null ? "" : county.code);        streetCode = (street == null ? "" : street.code);        String address = (province == null ? "" : province.name) + " " + (city == null ? "" : city.name) + " " + (county == null ? "" : county.name) + " " + (street == null ? "" : street.name);        mSelectorContent.setText("地址 :" + " " + address);        if (dialog != null) {            dialog.dismiss();        }//        getSelectedArea();    }    @Override    public void dialogclose() {        if (dialog != null) {            dialog.dismiss();        }    }    /**     * 根据code 来显示选择过的地区     */    private void getSelectedArea() {        String province = addressDictManager.getProvince(provinceCode);        String city = addressDictManager.getCity(cityCode);        String county = addressDictManager.getCounty(countyCode);        String street = addressDictManager.getStreet(streetCode);    }}

自定义BottomDialog（这里只修改了一下展示的高度） ：

package com.yl.select.addressselect;import android.app.Dialog;import android.content.Context;import android.view.Gravity;import android.view.Window;import android.view.WindowManager;import com.smarttop.library.utils.Dev;import com.smarttop.library.widget.AddressSelector;import com.smarttop.library.widget.OnAddressSelectedListener;/** * Created by YongLiu on 2017/7/26. */public class BottomDialog extends Dialog {    private AddressSelector selector;    public BottomDialog(Context context) {        super(context, com.smarttop.library.R.style.bottom_dialog);        init(context);    }    public BottomDialog(Context context, int themeResId) {        super(context, themeResId);        init(context);    }    public BottomDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {        super(context, cancelable, cancelListener);        init(context);    }    /**     * 初始化     *     * @param context     */    private void init(Context context) {        selector = new AddressSelector(context);        setContentView(selector.getView());        Window window = getWindow();        WindowManager.LayoutParams params = window.getAttributes();        params.width = WindowManager.LayoutParams.MATCH_PARENT;        params.height = Dev.dp2px(context, 350);        window.setAttributes(params);        window.setGravity(Gravity.BOTTOM);    }    public void setOnAddressSelectedListener(OnAddressSelectedListener listener) {        this.selector.setOnAddressSelectedListener(listener);    }    public static BottomDialog show(Context context) {        return show(context, null);    }    public static BottomDialog show(Context context, OnAddressSelectedListener listener) {        BottomDialog dialog = new BottomDialog(context, com.smarttop.library.R.style.bottom_dialog);        dialog.selector.setOnAddressSelectedListener(listener);        dialog.show();        return dialog;    }    public void setDialogDismisListener(AddressSelector.OnDialogCloseListener listener){        this.selector.setOnDialogCloseListener(listener);    }    /**     *设置字体选中的颜色     */    public void setTextSelectedColor(int selectedColor){        this.selector.setTextSelectedColor(selectedColor);    }    /**     *设置字体没有选中的颜色     */    public void setTextUnSelectedColor(int unSelectedColor){        this.selector.setTextUnSelectedColor(unSelectedColor);    }    /**     * 设置字体的大小     */    public void setTextSize(float dp){        this.selector.setTextSize(dp);    }    /**     * 设置字体的背景     */    public void setBackgroundColor(int colorId){        this.selector.setBackgroundColor(colorId);    }    /**     * 设置指示器的背景     */    public void setIndicatorBackgroundColor(int colorId){        this.selector.setIndicatorBackgroundColor(colorId);    }    /**     * 设置指示器的背景     */    public void setIndicatorBackgroundColor(String color){        this.selector.setIndicatorBackgroundColor(color);    }}

MainActivity Xml ：

<?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:id="@+id/activity_main"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.yl.select.addressselect.MainActivity">    <TextView        android:layout_marginTop="20dp"        android:id="@+id/tv_selector_area"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:gravity="center"        android:layout_gravity="center"        android:padding="10dp"        android:text="选择地区" />    <LinearLayout        android:id="@+id/content"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="vertical"        android:layout_alignParentTop="true"        android:layout_alignParentLeft="true"        android:layout_alignParentStart="true">    </LinearLayout></LinearLayout>