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(Pendin
949f
gIntent.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>