我在日历中插入了一个事件。创建事件的时间也必须创建,同时响铃以响铃。怎么做?我使用了以下代码,它给出了以下错误。
使用以下代码时出现以下错误: 主要活动:
Calendar caln = Calendar.getInstance();
caln.add(Calendar.SECOND, 2);
Intent intent = new Intent(ToDoApplicationActivity.this, AlarmReceiver.class);
intent.putExtra("alarm_message", title1);
PendingIntent sender = PendingIntent.getBroadcast(this, 192837, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sender);
startActivity(intent);
OnReceive方法覆盖:
public void onReceive(Context context, Intent intent) {
try {
Bundle bundle = intent.getExtras();
String message = bundle.getString("alarm_message");
Intent newIntent = new Intent(context, ToDoApplicationActivity.class);
newIntent.putExtra("alarm_message", message);
newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(newIntent);
} catch (Exception e) {
Toast.makeText(context, "There was an error somewhere, but we still received an alarm", Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
}
错误得到:
android.content.ActivityNotFoundException:无法找到显式活动类{com.android.todoapplication / android.todoapplication.AlarmReceiver};你有没有在AndroidManifest.xml中声明这个活动?
任何帮助都非常感谢并提前感谢...
答案 0 :(得分:2)
尝试在AndroidManifest.xml
中添加您的活动“AlarmReceiver”。
如果您的活动扩展 Android接收器(例如:BroadcastReceiver),请按以下方式添加:
<application android:label="@string/app_name" ...>
...
<receiver android:name=".AlarmReceiver" android:process=":remote" />
</application>
否则
<application android:label="@string/app_name" ...>
...
<activity android:name=".AlarmReceiver"/>
</application>