使用开关取消警报

Question

你好，我正在尝试使用开关禁用和报警，并从 SQL 数据库中获取特定的报警 ID，目前，每当我尝试禁用它时，我都会收到一个空引用。我现在仍在努力，但如果有人也可以快速浏览一下，那就太好了。

在列表视图适配器上创建警报

final int id = (int) System.currentTimeMillis();

pendingIntent = PendingIntent.getBroadcast(v.getContext(), id, receiver, PendingIntent.FLAG_UPDATE_CURRENT);

alarmManager.set(AlarmManager.RTC_WAKEUP, myCalendar.getTimeInMillis(), pendingIntent);

intentArrayList.add(pendingIntent);

我尝试从 BaseAdapter 取消数据库。

mySwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

cursor.moveToPosition(position);

if (mySwitch.isChecked()){

Toast.makeText(view.getContext(), Integer.toString(position) + "ENABLED", Toast.LENGTH_SHORT).show();

} else {

String id = cursor.getString(cursor.getColumnIndexOrThrow("alarm_code"));

pendingIntent = PendingIntent.getBroadcast(view.getContext(),   Integer.valueOf(id), receiver, PendingIntent.FLAG_UPDATE_CURRENT);

alarmManager.cancel(pendingIntent);

Toast.makeText(view.getContext(), "DISABLED", Toast.LENGTH_SHORT).show();

            }

当前错误信息.....

尝试在空对象引用上调用虚拟方法'void android.content.Intent.prepareToLeaveProcess(android.content.Context)'

Answer 1

修复了如果您不忘记将这两行输入的错误

alarmManager = (AlarmManager) view.getContext().getSystemService(Context.ALARM_SERVICE);
receiver = new Intent(view.getContext(), Alarm_Reciever.class);

使用开关取消警报

Cancel alarm using a switch

sql

android

adapter

alarm

alarmmanager