底部弹出PopupWindow+地址三级联动，多问题全面分析，详细注释
【摘要】
主要功能：从底部弹出的 PopupWindow，带动画，带灰色背景，在PopupWindow中实现省市区三级联动，并填充textview
先看效果图
1.PopupWindow
<span style="font-size:18px;">public class PopHelper { p...
主要功能：从底部弹出的 PopupWindow，带动画，带灰色背景，在PopupWindow中实现省市区三级联动，并填充textview
先看效果图
1.PopupWindow
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<span style="font-size:18px;">public class PopHelper {
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private Context mContext;
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private PopupWindow pw;
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private CityPicker cityPicker;
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public PopHelper(Context context) {
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mContext = context;
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}
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/**
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* @param view
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* @param itemsOnClick 抛出一个OnClickListener接口
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*/
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public void showAddressPop(View view, final Activity activity, View.OnClickListener itemsOnClick) {
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// 设置pw里的点击事件
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LinearLayout addressView = (LinearLayout) View.inflate(mContext, R.layout.pop_address, null);
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Button btnPopAddressCencel = (Button) addressView.findViewById(R.id.btn_pop_address_cencel);
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btnPopAddressCencel.setOnClickListener(itemsOnClick);
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Button btnPopAddressEnter = (Button) addressView.findViewById(R.id.btn_pop_address_enter);
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btnPopAddressEnter.setOnClickListener(itemsOnClick);
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cityPicker = (CityPicker) addressView.findViewById(R.id.citypicker);
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//-2是包裹自己，-1是填充父容器
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pw = new PopupWindow(addressView, -1, -2);
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//先关闭
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colsePopupwindow();
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//必须要设置一个背景
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pw.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
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//点击外边可关闭pw
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pw.setOutsideTouchable(true);
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//pw内可获取焦点
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pw.setFocusable(true);
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// 设置背景颜色变暗
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WindowManager.LayoutParams lp = activity.getWindow().getAttributes();
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lp.alpha = 0.7f;
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activity.getWindow().setAttributes(lp);
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//退出时恢复透明度
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pw.setOnDismissListener(new PopupWindow.OnDismissListener() {
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@Override
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public void onDismiss() {
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WindowManager.LayoutParams lp = activity.getWindow().getAttributes();
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lp.alpha = 1f;
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activity.getWindow().setAttributes(lp);
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}
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});
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//设置动画
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pw.setAnimationStyle(R.style.take_photo_anim);
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//显示。y轴距离底部100是因为部分手机有虚拟按键，所以实际项目中要动态设置
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pw.showAtLocation(view, Gravity.BOTTOM, 0, 100);
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}
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/**
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*
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* @return 获取控件中的地址数据
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*/
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public String getAddressData() {
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String cData = cityPicker.getCity_string();
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return cData;
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}
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/**
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* 关闭pw
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*/
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public void colsePopupwindow() {
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if (pw != null && pw.isShowing()) {
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pw.dismiss();
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pw = null;
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}
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}
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}</span>
pop_enter_anim.xml
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<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate
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android:duration="200"
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android:fromYDelta="100%p"
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android:toYDelta="0" />
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<alpha
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android:duration="200"
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android:fromAlpha="0.0"
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android:toAlpha="1.0" />
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</set></span>
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<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate
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android:duration="200"
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android:fromYDelta="0"
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android:toYDelta="50%p" />
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<alpha
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android:duration="200"
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android:fromAlpha="1.0"
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android:toAlpha="0.0" />
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</set> </span>
记得copy styles文件中的style
3.在MainActivity中的调用
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<span style="font-size:18px;">public class MainActivity extends AppCompatActivity implements View.OnClickListener {
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private TextView textView1, textView2;
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private Button button1, button2;
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private PopHelper popHelper;//pop
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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textView1 = (TextView) findViewById(R.id.textView1);
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textView2 = (TextView) findViewById(R.id.textView2);
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button1 = (Button) findViewById(R.id.button1);
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button1.setOnClickListener(this);
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button2 = (Button) findViewById(R.id.button2);
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button2.setOnClickListener(this);
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}
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/**
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* 实现popHelper中的item接口
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*/
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private View.OnClickListener onClickListener = new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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switch (v.getId()) {
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case R.id.btn_pop_address_cencel:
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popHelper.colsePopupwindow();
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break;
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case R.id.btn_pop_address_enter:
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String addressData = popHelper.getAddressData();
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if (flag) {
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textView1.setText(addressData);
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} else {
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textView2.setText(addressData);
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}
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popHelper.colsePopupwindow();
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break;
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}
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}
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};
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boolean flag;//用于pop标记显示,避免多个地方显示却只填充一个textview的情况
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@Override
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public void onClick(View v) {
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switch (v.getId()) {
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case R.id.button1:
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popHelper = new PopHelper(getApplicationContext());
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popHelper.showAddressPop(v, MainActivity.this, onClickListener);
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flag = true;
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break;
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case R.id.button2:
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popHelper = new PopHelper(getApplicationContext());
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popHelper.showAddressPop(v, MainActivity.this, onClickListener);
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flag = false;
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break;
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}
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}
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}</span>
首先，在main目录下创建assets文件，并copy城市json数据包
其次，在lib中加入gson包，记得As a lib，或直接
<span style="font-size:18px;">compile 'com.google.code.gson:gson:2.6.2'</span>
最后在values文件夹中copy-attrs.xml文件
然后就完美实现了。
代码中都有详细注释
源码下载地址：https://github.com/yechaoa/PopAddress
文章来源: blog.csdn.net，作者：yechaoa，版权归原作者所有，如需转载，请联系作者。
原文链接：blog.csdn.net/yechaoa/article/details/52818287
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