android 简单快速 实现滚轮控件WheelView（类似DatePicker/TimePicker）

github 地址：GitHub - Bigkoo/Android-PickerView: This is a picker view findex.php/tags-1038.html" >or android , support linkage effect, timepicker and optionspicker.（时间选择器、省市区三级联动）

https://github.com/Bigkoo/Android-PickerView

1.引用库

implementation 'com.contrarywind:Android-PickerView:4.1.9'

2. 实现逻辑

public class TimeSelectDialog {    private Activity activity;    private ViewGroup contentView;    private View view;    private WheelView wvHour;    private WheelView wvMinute;    private List hourList;    private List minuteList;    public TimeSelectDialog(Activity activity) {        this.activity = activity;        contentView = activity.findViewById(android.R.id.content);        view = LayoutInflater.from(activity).inflate(R.layout.dialog_time_select, null);         wvHour = view.findViewById(R.id.wv_hour);         wvMinute = view.findViewById(R.id.wv_minute);        TextView tvCancel = view.findViewById(R.id.tv_cancel);        TextView tvSure = view.findViewById(R.id.tv_sure);        tvCancel.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                dismiss();            }        });        tvSure.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                dismiss();            }        });        //第一种方式        initHourWheelView();        initMinuteWheelView();                //第二种方式        /*initTimePickerBuilder();*/    }    /**     * 初始化时间选择器控件     */    private void initTimePickerBuilder() {        Calendar startDate = Calendar.getInstance();        Calendar endDate = Calendar.getInstance();        //正确设置方式 原因：注意事项有说明        startDate.set(startDate.get(Calendar.YEAR)-50,0,1);//-50往前推50年        endDate.set(endDate.get(Calendar.YEAR)+50,11,31);//+50往后推50年        TimePickerView tpv = new TimePickerBuilder(activity, new OnTimeSelectListener() {            @Override            public void onTimeSelect(Date date, View v) {            }        }).setDecorView(view.findViewById(R.id.ll_tpv_container))//设置父控件                .isDialog(false)//非弹框模式                .setItemVisibleCount(5)//显示5行                .setDate(Calendar.getInstance())//当前时间                .setRangDate(startDate,endDate)//起始终止年月日设定                .build();        //隐藏选择器上面的标题栏        int topbarId = activity.getResources().getIdentifier("rv_topbar", "id", activity.getPackageName());        tpv.findViewById(topbarId).setVisibility(View.GONE);        tpv.show();//显示    }    /**     * 小时     */    private void initHourWheelView() {        hourList = new ArrayList();        for (int i = 0; i  
 2.布局实现 dialog_time_select.xml
 
                                                                                                        
 
3.dialog动画
 
dialog_in_anim.xml
 
    
 
dialog_out_anim.xml
 
    
 
4.时间选择器弹框：
 
new TimeSelectDialog(activity).show(null);