TimePick控件和TimePickDialog

比眉伴天荒 2022-09-24 13:29 251阅读 0赞

**1.TimePick控件**

TimePick控件显示一个可以更改时间的空间，不过好像并没有什么用（估计是我没用到），下面代码（代码是我写的一个小闹钟，不过提示时间到了的对话框，提示的比较慢）：  
![这里写图片描述][20160801202505978]  
就是这样子。

xml文件：

TimePickActivity类：

package com.example.timepick;
    
    import java.util.Calendar;
    
    import android.app.AlarmManager;
    import android.app.PendingIntent;
    import android.app.TimePickerDialog;
    import android.app.TimePickerDialog.OnTimeSetListener;
    import android.content.Context;
    import android.content.Intent;
    import android.os.Bundle;
    import android.support.v7.app.ActionBarActivity;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    import android.widget.TimePicker;
    import android.widget.TimePicker.OnTimeChangedListener;
    import android.widget.Toast;
    
    public class TimepickActivity extends ActionBarActivity {
        
    
        private int h,m = 0;;
        private TimePicker timePicker;
        private Button button1,button2;
        private AlarmManager alarmManager=null;
        private Calendar currentTime = null;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.timepick);
    
            timePicker = (TimePicker) findViewById(R.id.timePicker);
            button1 = (Button) findViewById(R.id.button1);
            button1.setOnClickListener(new ButtonListenerOne());//获取时分值
    
            //设置闹钟(这里不用看是闹钟设置时间的)
            currentTime = Calendar.getInstance();//获取日期对象
            button2 = (Button) findViewById(R.id.button2);
            button2.setOnClickListener(new ButtonListenerTwo());
    
            timePicker.setIs24HourView(true);//是否设置为24小时制    
            timePicker.setOnTimeChangedListener(new TimeListener());//获取时分值
    
        }
    
        //获取TimePick时间
        class ButtonListenerOne implements OnClickListener{
    
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                h = timePicker.getCurrentHour();
                m = timePicker.getCurrentMinute(); 
                //System.out.println("h:"+h+"   m:"+m);
                Toast.makeText(TimepickActivity.this, "当前设置的时间为："+h+":"+m, Toast.LENGTH_LONG).show();
            }
    
        }
        //读取TimePick时间（这个是TimePick改到那里提示到哪里。）
        class TimeListener implements OnTimeChangedListener{
    
            @Override
            public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
                // TODO Auto-generated method stub
                /** 
                 * view 当前选中TimePicker控件 
                 *  hourOfDay 当前控件选中TimePicker 的小时 
                 * minute 当前选中控件TimePicker  的分钟 
                 */  
                //System.out.println("h:"+ hourOfDay +" m:"+minute);  
                Toast.makeText(TimepickActivity.this, "当前设置的时间为："+hourOfDay+":"+minute, Toast.LENGTH_LONG).show();
            }
    
        }
    }

AlarmReceiver类：

package com.example.timepick;
    
    import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    
    public class AlarmReceiver extends BroadcastReceiver{
        
    
        @Override
        public void onReceive(Context context, Intent data) {
            // TODO Auto-generated method stub 
            //Intent对象
            Intent intent=new Intent(context, AlarmActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent); 
        }
    
    }

**2.TimePickDialog**  
这个方法设置闹钟必写的,下面代码：

//设置闹钟（button2绑定）
        class ButtonListenerTwo implements OnClickListener{
        
    
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                currentTime.setTimeInMillis(System.currentTimeMillis()); //设置Calendar对象
                int mHour=currentTime.get(Calendar.HOUR_OF_DAY);  
                int mMinute=currentTime.get(Calendar.MINUTE); 
    
                new TimePickerDialog(TimepickActivity.this,new OnTimeSetListener() {
    
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        // TODO Auto-generated method stub
    
                        currentTime.setTimeInMillis(System.currentTimeMillis());//设置当前时间
                        currentTime.set(Calendar.HOUR_OF_DAY, hourOfDay);//设置小时
                        currentTime.set(Calendar.MINUTE, minute);   //设置分钟
                        currentTime.set(Calendar.SECOND, 0);    //设置秒数
                        currentTime.set(Calendar.MILLISECOND, 0);   //设置毫秒
    
                        //建立Intent和PendingIntent,来调用目标组件
                        Intent intent = new Intent(TimepickActivity.this, AlarmReceiver.class);
                        PendingIntent pendingIntent = PendingIntent.getBroadcast(TimepickActivity.this, 0, intent, 0);
                        //获取闹钟管理的实例
                        AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
                        //设置闹钟
                        am.set(AlarmManager.RTC_WAKEUP, currentTime.getTimeInMillis(), pendingIntent);
                        //设置周期闹钟
                        am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+(10*1000), (24*60*60*1000), pendingIntent);
                        Toast.makeText(TimepickActivity.this, "闹钟设置好了", Toast.LENGTH_LONG).show();
                    } 
                } , mHour, mMinute, true).show();//备注这个必须要有不然不会提示的（因为你没执行）
            }
    
        }

AlarmReceiver类：

AlarmActivity类（显示对话框的）：

package com.example.timepick;
    
    import android.app.Activity;
    import android.app.AlertDialog;
    import android.content.DialogInterface;
    import android.content.DialogInterface.OnClickListener;
    import android.os.Bundle;
    
    public class AlarmActivity extends Activity{
        
    
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
    
            //显示对话框
            new AlertDialog.Builder(AlarmActivity.this).
                setTitle("闹钟").//设置标题
                setMessage("时间到了！").//设置内容
                setPositiveButton("知道了", new OnClickListener(){
       //设置按钮
                    public void onClick(DialogInterface dialog, int which) {
                        AlarmActivity.this.finish();//关闭Activity
                    }
                }).create().show();
    
    
        }
    }

取消闹钟button：

btton3.setOnClickListener(new Button.OnClickListener(){  
    
            public void onClick(View v) {  
                // TODO Auto-generated method stub  
                Intent intent = new Intent(TimePickActivity.this,AlamrReceiver.class);  
                PendingIntent pi = PendingIntent.getBroadcast(TimePickActivity.this, 0, intent, 0);  
                AlarmManager am = (AlarmManager)getSystemService(Activity.ALARM_SERVICE);  
                am.cancel(pi);  
                //tv.setText("闹钟取消");
                Toast.makeText(TimepickActivity.this, "闹钟取消了",Toast.LENGTH_LONG).show();
             }  
    
    });

**备注：**（不然不会提示对话框的）  
mainfest中必须要执行这个（**位置在application中，activity下**）：

样式图片大概就是这样（网上找的图片）  
![这里写图片描述][20160801204212516]![这里写图片描述][20160801204224141]

[20160801202505978]: /images/20220719/7bf3855595064e34b34ccfb949c271ad.png
[20160801204212516]: https://img-blog.csdn.net/20160801204212516
[20160801204224141]: /images/20220719/b54feb5f8ef44945ae4d1b926ea8352f.png