android闹钟——原代码

手机当中肯定是有闹钟的，这是不用说的，要不然就不是手机了。对吧。
下面我根据广播的方式写了一个闹钟，大家请看图：
下面让我们看一下原代码的是如何写的，package com.smart;import java.util.Calendar;import android.app.Activity;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.media.MediaPlayer;public class AlarmReceiver extends BroadcastReceiver {/** * 通过广播进行扫描，是否到达时间后再响起闹铃 * * */    @Override    public void onReceive(Context context, Intent intent) {               SharedPreferences sharedPreferences=context.getSharedPreferences("alarm_record", Activity.MODE_PRIVATE);        String hour=String.valueOf(Calendar.getInstance().get(Calendar.HOUR_OF_DAY));        String minute=String.valueOf(Calendar.getInstance().get(Calendar.MINUTE));        String time=sharedPreferences.getString(hour+":"+minute, null);//小时与分，               if(time!=null){//判断是否为空，然后通过创建，            MediaPlayer mediaPlayer=MediaPlayer.create(context, R.raw.llb);            mediaPlayer.start();//开始        }       }}package com.smart;import android.app.Activity;import android.app.AlarmManager;import android.app.AlertDialog;import android.app.PendingIntent;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.content.SharedPreferences;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;import android.widget.TimePicker;public class Main extends Activity implements OnClickListener{       private TextView alarmRecord;    private SharedPreferences sharedPreferences;          @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        Button addAlarm=(Button)findViewById(R.id.addAlarm);        alarmRecord=(TextView)findViewById(R.id.alarmRecord);        addAlarm.setOnClickListener(this);        sharedPreferences=getSharedPreferences("alarm_record", Activity.MODE_PRIVATE);        AlarmManager aManager=(AlarmManager)getSystemService(Context.ALARM_SERVICE);        Intent intent=new Intent(this,AlarmReceiver.class);        PendingIntent pendingIntent=PendingIntent.getBroadcast(this, 0, intent, 0);        aManager.setRepeating(AlarmManager.RTC, 0, 60*1000, pendingIntent);       }       @Override    public void onClick(View v) {        View view=getLayoutInflater().inflate(R.layout.llb,    null);//        final TimePicker timePicker=(TimePicker)view.findViewById(R.id.timepicker);        timePicker.setIs24HourView(true);//        new AlertDialog.Builder(this).setTitle("设置闹铃时间").setView(view).setPositiveButton("确定", new DialogInterface.OnClickListener() {            //设置标题            @Override            public void onClick(DialogInterface dialog, int which) {            //按钮事件触发方法                String timeStr=String.valueOf(timePicker.getCurrentHour())+":"+String.valueOf(timePicker.getCurrentMinute());                alarmRecord.setText(alarmRecord.getText().toString()+"\n"+timeStr);                sharedPreferences.edit().putString(timeStr, timeStr).commit();                           }        }).setNegativeButton("取消", null).show();                                                        }}
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