滑轮选择，WheelView的简单使用

来源：互联网发布：淘宝买管制刀具编辑：程序博客网时间：2024/05/01 06:40
简单粗暴，直接上图
主要的代码解析很清楚
当然，并没有去写调用系统的时间，所以就随便复制点常量搞上了
package com.example.wheelviewtext;import org.w3c.dom.Text;import android.app.Activity;import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.os.Bundle;import android.view.Gravity;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.LinearLayout;import android.widget.TextView;public class MainActivity extends Activity {//定义常量数据private String[] Week={"周一","周二","周三","周四","周五","周六","周日"};private String[] Month={"1","2","3","4","5","6","7","8","9","10","11","12"};private String[] Day={"1","2","3","4","5","6","7","8","9","10"  ,"11","12","13","14","15","16","17","18","19","20"  ,"21","22","23","24","25","26","27","28","29","30","31"};private String[] Month_Day_Week=new String[365];private int Week_Count=3;private int k=0;private String[] Hour={"0","1","2","3","4","5","6","7","8","9","10","11","12","13","14","15","16","17","18","19","20","21","22","23"};private String[] Minute={"00","01","02","03","04","05","06","07","08","09","10","11","12","13","14","15","16","17","18","19","20","21","22","23","24","25","26","27","28","29","30","31","32","33","34","35","36","37","38","39","40","41","42","43","44","45","46","47","48","49","50","51","52","53","54","55","56","57","58","59"};//数据初始化public void init(){for(int i=0;i<12;i++){for(int j=0;j<31;j++){//2月，暂不考虑闰年if(i==1&&j>27)break;if((i==3||i==5||i==8||i==10)&&j>29)break;Week_Count%=7;Month_Day_Week[k++]=new String(Month[i]+"月"+Day[j]+"日"+Week[Week_Count++]);}}}private Button btn;private TextView text;    @Override    protected void onCreate(Bundle savedInstanceState){            super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //初始化调用        init();        btn = (Button) findViewById(R.id.btn);        text=(TextView) findViewById(R.id.text);        btn.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                showSelectDialog(MainActivity.this, "日期选择", Month_Day_Week, Hour,Minute);            }        });            }        //布局及显示的自定义函数    private void showSelectDialog(Context context, String title, final String[] Month_Day_Week, final String[] Hour,final String Minute[])    {    //定义布局控件    AlertDialog dialog = new AlertDialog.Builder(context).create();    dialog.setTitle(title);        LinearLayout llContent = new LinearLayout(context);        llContent.setOrientation(LinearLayout.HORIZONTAL);                //定义月日周的WheelView        final WheelView wheelMonth = new WheelView(context);        //画面显示个数        wheelMonth.setVisibleItems(5);        wheelMonth.setCyclic(true);        /*设置监听布局          第一个参数为对应为传入的数据，第二个参数为初始化显示字节最大长度          一个字为2字节，一个数字为1字节   以最大为标准          12月30日周日    4个字8字节，4个数字4字节 共12字节         */        wheelMonth.setAdapter(new ArrayWheelAdapter<String>(Month_Day_Week,12));                //定义小时        final WheelView wheelHour = new WheelView(context);        wheelHour.setVisibleItems(5);        wheelHour.setCyclic(true);        wheelHour.setAdapter(new ArrayWheelAdapter<String>(Hour,2));                //定义分钟        final WheelView wheelMinute=new WheelView(context);        wheelMinute.setVisibleItems(5);        wheelMinute.setCyclic(true);        wheelMinute.setAdapter(new ArrayWheelAdapter<String>(Minute,2));                //月日周的显示容器        LinearLayout.LayoutParams paramsMonth = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,                LayoutParams.WRAP_CONTENT, (float) 2.0);        paramsMonth.gravity = Gravity.LEFT;                //时的显示容器        LinearLayout.LayoutParams paramsHour = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,                LayoutParams.WRAP_CONTENT, (float) 0.5);        paramsHour.gravity = Gravity.CENTER;                //分钟的显示容器        LinearLayout.LayoutParams paramsMinute = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT,                LayoutParams.WRAP_CONTENT, (float) 0.5);        paramsMinute.gravity = Gravity.RIGHT;                //分别添加View进入各自的容器        llContent.addView(wheelMonth, paramsMonth);        llContent.addView(wheelHour, paramsHour);        llContent.addView(wheelMinute,paramsMinute);                        //设置Month改变监听        wheelMonth.addChangingListener(new OnWheelChangedListener() {            @Override            public void onChanged(WheelView wheel, int oldValue, int newValue) {            }        });        //小时的监听器        wheelHour.addChangingListener(new OnWheelChangedListener() {@Overridepublic void onChanged(WheelView wheel, int oldValue, int newValue) {// TODO Auto-generated method stub}});        //分钟的监听器        wheelMinute.addChangingListener(new OnWheelChangedListener() {@Overridepublic void onChanged(WheelView wheel, int oldValue, int newValue) {// TODO Auto-generated method stub}});                //按钮触发事件        dialog.setButton(AlertDialog.BUTTON_POSITIVE, "确认", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                int leftPosition = wheelMonth.getCurrentItem();                String vMonth = Month_Day_Week[leftPosition];                String vHour = Hour[wheelHour.getCurrentItem()];                String vMinute=Minute[wheelMinute.getCurrentItem()];                text.setText(vMonth + "-" + vHour+":"+vMinute);                dialog.dismiss();            }        });        dialog.setButton(AlertDialog.BUTTON_NEGATIVE, "取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();            }        });        //总布局显示，对话框        dialog.setView(llContent);        if (!dialog.isShowing()) {            dialog.show();        }    }                    }
（eclipse）代码：http://pan.baidu.com/s/1o6tGXlg
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