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我試圖讓用戶選擇報警的時間,但警報會觸發每隔15分鐘「這是默認的」即使我選擇另一種偏好我的應用程序沒有響應的喜好來改變
這是代碼相關的問題,在我的MainActivity
public class MainActivity extends AppCompatActivity {
private SharedPreferences sharedPreferences;
private static String reminder;
private static AlarmManager am;
private ImageButton btn;
private ImageButton cancel;
private EditText et;
private Intent intent;
private PendingIntent pend;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// initialize variables
btn = (ImageButton) findViewById(R.id.imageButton2);
cancel = (ImageButton) findViewById(R.id.imageButton);
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
// create intents
intent = new Intent(getApplicationContext(), Notifications.class);
pend = getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);
am = (AlarmManager) getSystemService(ALARM_SERVICE);
// get the user preference
String sel = sp.getString("repeatPref", "1");
final String repeat[] = getResources().getStringArray(R.array.settings_repeat_by_labels);
final int ss = Integer.parseInt(sel);
// action when user presses the "Tweak" button
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
pend.cancel();
am.cancel(pend);
// initialize pend and AlarmManager
pend = getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);
am = (AlarmManager) getSystemService(ALARM_SERVICE);
// if the user didn't type anything
Calendar calendar = Calendar.getInstance();
// notify at different times
if (repeat[ss - 1].equals("15 MINUTES")) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() + 60*1000 ,60*1000, pend);
}
} else if (repeat[ss - 1].equals("1 HOUR")) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
am.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() + 120 * 1000, 120 * 1000, pend);
}
} else if (repeat[ss - 1].equals("2 HOURS")) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
am.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis() + AlarmManager.INTERVAL_HOUR * 2, AlarmManager.INTERVAL_HOUR * 2, pend);
}
});
另一個按鈕取消報警
cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
am.cancel(pend);
pend.cancel();
Toast.makeText(MainActivity.this,"All cleared", Toast.LENGTH_LONG).show();
}
});
我創建的掛起和鬧鐘在onCreate方法和第二次Ti我當按下「BTN」因爲我創造另一個按鈕來取消它,我試圖「時間長」來檢查的PendingIntent「掛起」和AlarmManager「AM」已經存在或沒有,然後根據結果取消它,但我失敗了,所以我認爲這種做法可能會奏效
現在每次用戶想要取消報警,並打開該應用程序會創建新的未決意圖和警報管理,所以如果用戶按下取消按鈕而不按「BTN」第一該應用程序不會崩潰,已經工作的警報被取消..我懷疑這是我現在的問題的一部分
我知道這是很多的東西,但我試着解釋儘可能簡單..感謝您花時間閱讀所有這些!