Android 仿闹钟 及 通知栏的实现

一.闹钟的实现

    这里运用了广播来实现，信息的传递

   下面是代码

  

public class MainActivity extends AppCompatActivity {    private AlarmManager alarmManager;    private PendingIntent pendingIntent;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //初始化视图        initview();    }    //初始化视图    private void initview(){        Button RingOne_btn = (Button) findViewById(R.id.RingOne_btn);        Button RingCycle_btn = (Button) findViewById(R.id.RingCycle_btn);        Button CancleRingCycle_btn = (Button) findViewById(R.id.CancleRingCycle_btn);        Button SendNofication_btn = (Button) findViewById(R.id.SendNofication_btn);        //获取闹钟管理者        alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);        //单次闹铃        RingOne_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //获取当前的系统时间                Calendar calendar=Calendar.getInstance();                int hour=calendar.get(Calendar.HOUR_OF_DAY);                int minute=calendar.get(Calendar.MINUTE);                //弹出时间对话框                TimePickerDialog timePickerDialog=new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {                    @Override                    public void onTimeSet(TimePicker timePicker, int i, int i1) {                        //选择闹钟启用的时间                        Calendar c=Calendar.getInstance();                        c.set(Calendar.HOUR_OF_DAY,i);                        c.set(Calendar.MINUTE,i1);                        //发送广播                        Intent intent=new Intent();                        intent.setAction("com.example.android_08_alarm.ring");                        //将来时态的跳转                        PendingIntent pendingIntent= PendingIntent.getBroadcast(MainActivity.this,0x102,intent,0);                        //使用alarmManager设置闹钟                        alarmManager.set(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),pendingIntent);                    }                },hour,minute,true);                timePickerDialog.show();            }        });        //重复闹钟        RingCycle_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //获取当前的系统时间                Calendar calendar=Calendar.getInstance();                int hour=calendar.get(Calendar.HOUR_OF_DAY);                int minute=calendar.get(Calendar.MINUTE);                //弹出时间对话框                TimePickerDialog timePickerDialog=new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {                    @Override                    public void onTimeSet(TimePicker timePicker, int i, int i1) {                        //选择闹钟启用的时间                        Calendar c=Calendar.getInstance();                        c.set(Calendar.HOUR_OF_DAY,i);                        c.set(Calendar.MINUTE,i1);                        //发送广播                        Intent intent=new Intent();                        intent.setAction("com.example.android_08_alarm.ring");                        //将来时态的跳转                        pendingIntent = PendingIntent.getBroadcast(MainActivity.this,0x102,intent,0);                        //使用alarmManager设置循环闹钟                      alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),5000, pendingIntent);                    }                },hour,minute,true);                timePickerDialog.show();            }        });        //取消重复闹钟        CancleRingCycle_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                alarmManager.cancel(pendingIntent);            }        });        //发送通知        SendNofication_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                //实例化通知管理者                NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);               //实例化通知                NotificationCompat.Builder builder = new NotificationCompat.Builder(MainActivity.this);                builder.setContentTitle("哈哈");                builder.setContentText("今天放假");                builder.setDefaults(NotificationCompat.DEFAULT_ALL);                builder.setAutoCancel(true);                builder.setSmallIcon(android.R.drawable.ic_menu_delete);                builder.setContentIntent(PendingIntent.getActivity(MainActivity.this,0x220,new Intent(MainActivity.this,RingActivity.class),0));                Notification notification = builder.build();                //发送通知                notificationManager.notify(0x111,notification);            }        });    }}

首页的xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_main"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.example.android_08_alarmer.MainActivity">    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="闹铃（一次）"        android:id="@+id/RingOne_btn"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="闹铃（周期）"        android:id="@+id/RingCycle_btn"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="取消周期"        android:id="@+id/CancleRingCycle_btn"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="发送广播"        android:id="@+id/SendNofication_btn"        /></LinearLayout>

 设计到广播的代码

public class RingCevider extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {        if("com.example.android_08_alarm.ring".equals(intent.getAction())){                Intent intent1=new Intent(context,RingActivity.class);                //设置标志位                intent1.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);                context.startActivity(intent1);        }    }}

 清单文件的配置

        <receiver android:name=".RingCevider">            <intent-filter>                 <action android:name="com.example.android_08_alarm.ring"></action>            </intent-filter>        </receiver>

  音乐播放页面

public class RingActivity extends AppCompatActivity {    private MediaPlayer mediaPlayer;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_ring);        //初始化控件        Initview();    }    private void Initview(){        Button stop_btn = (Button) findViewById(R.id.stop_btn);        mediaPlayer = MediaPlayer.create(RingActivity.this, R.raw.love);        mediaPlayer.start();        //停止音乐        stop_btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                mediaPlayer.stop();                finish();            }        });    }}

 音乐播放xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_ring"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context="com.example.android_08_alarmer.RingActivity">    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="停止"        android:id="@+id/stop_btn"        /></LinearLayout>