我正在尝试在我的应用中的预定时间发送消息
这是我的活动
public class Lenditem extends Activity {
Context mContext;
private int mHour;
private int mMin;
private int mYear;
private int mMonth;
private int mDay;
Button b1, b2, b3;
EditText et1, et2,et3;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
//Full screen code
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.lenditem);
b1 = (Button)findViewById(R.id.bselectcontactlenditem);
b3 = (Button)findViewById(R.id.bcancellenditem);
et1 = (EditText)findViewById(R.id.etdesclenditem);
et2 = (EditText)findViewById(R.id.etamountlenditem);
et3 = (EditText)findViewById(R.id.lietentercontact);
Button dateSet=(Button) findViewById(R.id.limyDatePickerButton);
Button timeSet=(Button) findViewById(R.id.limyTimePickerButton);
b3.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
boolean diditWork = true;
try {
String Desc1 = et1.getText().toString();
String Amt1 = et2.getText().toString();
Databaselentitem entry = new Databaselentitem(Lenditem.this);
entry.open();
entry.createEntry1(Desc1, Amt1);
entry.close();
} catch (Exception e) {
diditWork = false;
Toast.makeText(getApplicationContext(), "Something's Wrong.!!", Toast.LENGTH_LONG).show();
} finally {
if (diditWork) {
Toast.makeText(getApplicationContext(), "Reminder saved successfully.!!", Toast.LENGTH_LONG).show();
}
}
}
});
b1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// user BoD suggests using Intent.ACTION_PICK instead of
// .ACTION_GET_CONTENT to avoid the chooser
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
// BoD con't: CONTENT_TYPE instead of CONTENT_ITEM_TYPE
intent.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE);
startActivityForResult(intent, 1);
}
});
dateSet.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Intent localIntent1 = new Intent();
localIntent1.setClass(Lenditem.this.mContext, TimePickerActivity.class);
Lenditem.this.startActivityForResult(localIntent1, 0);
return;
/* DatePickerDialog.OnDateSetListener d=new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthofyear, int dayofmonth) {
// TODO Auto-generated method stub
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int mYear = c.get(Calendar.YEAR);
int mMonth = c.get(Calendar.MONTH);
int mDay = c.get(Calendar.DAY_OF_MONTH);
mMonth=monthofyear;
mYear=year;
mDay=dayofmonth;
Toast.makeText(getBaseContext(), "Date Set is :"+mDay+"/"+(mMonth+1)+"/"+mYear, Toast.LENGTH_SHORT).show();
}
};
// TODO Auto-generated method stub
new DatePickerDialog(Lenditem.this,d,Calendar.YEAR,Calendar.MONTH,Calendar.DAY_OF_MONTH).show();
*/ }
});
timeSet.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
TimePickerDialog.OnTimeSetListener t = new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker view2, int hour, int min) {
// TODO Auto-generated method stub
mHour = hour;
mMin = min;
if (mHour >= 12)
mHour = mHour - 12;
Log.d("MYAPP", "hh:" + mHour + "\nmm:" + mMin);
Toast.makeText(getBaseContext(),
"Time Set is:" + mHour + ":" + mMin + ":00",
Toast.LENGTH_SHORT).show();
}
};
Calendar cal = Calendar.getInstance();
new TimePickerDialog(Lenditem.this, t, cal
.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE),
true).show();
}
});
Button saveAndClearBtn = (Button) findViewById(R.id.bSubmitlenditem);
saveAndClearBtn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Calendar myCal = Calendar.getInstance();
long timeToTrigger;
myCal.set(Calendar.YEAR, mYear);
myCal.set(Calendar.MONTH, mMonth);
myCal.set(Calendar.DAY_OF_MONTH, mDay);
myCal.set(Calendar.HOUR, mHour);
myCal.set(Calendar.MINUTE, mMin);
myCal.set(Calendar.SECOND, 0);
long setTime = myCal.getTimeInMillis();
if (setTime > System.currentTimeMillis()) {
timeToTrigger = setTime - System.currentTimeMillis();
EditText edt1 = (EditText) findViewById(R.id.bselectcontactlenditem);
EditText edt2 = (EditText) findViewById(R.id.litxtMessage);
String msg = edt2.getText().toString();
String telno = edt1.getText().toString();
int count = 0;
SQLiteDatabase db = openOrCreateDatabase("MYDBli",
MODE_PRIVATE, null);
db.execSQL("CREATE TABLE IF NOT EXISTS mySmsSchedulerli(SlNo VARCHAR,Number VARCHAR,Msg VARCHAR);");
String s = "INSERT INTO mySmsSchedulerli VALUES ('" + count
+ "','" + telno + "','" + msg + "');";
db.execSQL(s);
Log.d("MYREC", "Insertion of data successfull");
db.close();
edt1.setText("");
edt2.setText("");
Intent intent = new Intent();
intent.setClass(Lenditem.this, MyBroadcastRecieverli.class);
Bundle b = new Bundle();
b.putString("index", Integer.toString(count));
intent.putExtras(b);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
Lenditem.this, (int) Math.random(), intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP,
System.currentTimeMillis() + timeToTrigger,
pendingIntent);
count++;
Toast.makeText(
getBaseContext(),
"Sms Scheduled after:" + (timeToTrigger / (1000*60*60))+" Hours "+(timeToTrigger/(1000*60))+" Minutes "
+(timeToTrigger/1000)+ " sec.", Toast.LENGTH_SHORT).show();
Log.d("MYAPP", "Set Time:" + (setTime / 1000) + "Sec. \n"
+ "Cur time:" + System.currentTimeMillis() / 1000);
Log.d("MYAPP", "Time to trigger:" + (timeToTrigger / 1000)
+ "sec.");
} else {
Toast.makeText(getBaseContext(),
"Please Enter a valid time", Toast.LENGTH_SHORT)
.show();
Calendar calendar = Calendar.getInstance();
int h = calendar.get(Calendar.HOUR);
int m = calendar.get(Calendar.MINUTE);
Log.d("MYAPP", "cur HH:" + h + "\ncur MM:" + m);
}
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (data != null) {
Uri uri = data.getData();
if (uri != null) {
Cursor c = null;
try {
c = getContentResolver().query(uri, new String[]{
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone.TYPE },
null, null, null);
if (c != null && c.moveToFirst()) {
String number = c.getString(0);
int type = c.getInt(1);
showSelectedNumber(type, number);
}
} finally {
if (c != null) {
c.close();
}
}
}
}
}
public void showSelectedNumber(int type, String number) {
et3.setText(number);
}
}
这是广播课
public class MyBroadcastRecieverli extends BroadcastReceiver {
@Override
public void onReceive(Context arg0, Intent intent) {
// TODO Auto-generated method stub
int myCount;
String cnt=intent.getStringExtra("index");
if(cnt==null)
Log.d("MYAPP","Data not received");
Log.d("MYAPP", "Count:"+cnt);
myCount=Integer.parseInt(cnt);
Log.d("MYAPP","Broadcast receiver called...");
SQLiteDatabase db=arg0.openOrCreateDatabase("MYDB",Context.MODE_PRIVATE, null);
Cursor c=db.rawQuery("SELECT Number, Msg FROM mySmsSchedulerli WHERE SlNo=="+myCount, null);
Log.d("MYAPP", "Cursor reference obtained...");
if(c!=null)
{
c.moveToFirst();
}
else
Log.d("MYAPP", "cursor is null");
/* c.moveToFirst();*/
String num=c.getString(c.getColumnIndex("Number"));
String myMsg=c.getString(c.getColumnIndex("Msg"));
Log.d("MYAPP", "number:"+num+"\nMsg:"+myMsg);
SmsManager sm = SmsManager.getDefault();
sm.sendTextMessage(num, null, myMsg, null, null);
Log.d("MYAPP", "Message Sent");
Toast.makeText(arg0, "Msg sent successfully", Toast.LENGTH_LONG).show();
String table="mySmsSchedulerli";
String whereClause = "SlNo = ?";
String[] whereArgs = new String[] { Integer.toString(Sms.count) };
db.delete(table, whereClause, whereArgs);
db.close();
Log.d("MYAPP", "Entry deleted..");
}
}
它显示你的msg将在xxxx秒后发送，但不会在预定时间发送msg。 任何人都可以帮我plzzz
答案 0 :(得分：0)
首先尝试使用Broadcast Receive，然后启动服务。
类似的东西：
创建一个函数：
public static void setRecurringAlarm(Context context, Class<?> cls, int time, int minute) {
Calendar updateTime = Calendar.getInstance();
updateTime.setTimeZone(TimeZone.getDefault());
updateTime.set(Calendar.HOUR_OF_DAY, time);
updateTime.set(Calendar.MINUTE, minute);
Intent alarm = new Intent(context, cls);
PendingIntent recurringAlarm = PendingIntent.getBroadcast(context, 654789, alarm, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarms = (AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
alarms.setRepeating(AlarmManager.RTC_WAKEUP, updateTime.getTimeInMillis(), AlarmManager.INTERVAL_DAY, recurringAlarm);
}
如果您不想设置定期闹钟，只需将setRepeating更改为设置。
在您的代码中，您需要致电：
// to start the receiver at 9:00am
setRecurringAlarm(this, AlarmManagerReceiver.class, 9, 0);
因此，您需要创建AlarmManagerReceiver.java：
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
public class AlarmManagerReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Intent alarmService = new Intent(context, AlarmManagerService.class);
context.startService(alarmService);
}
}
现在，你需要这项服务：
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.IBinder;
import android.preference.PreferenceManager;
public class AlarmManagerService extends Service {
private Context context;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
context = this.getApplicationContext();
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
// Do what you need to do.
stopSelf();
}
}
在清单中：
<receiver android:name=".AlarmManagerReceiver" >
<intent-filter>
<action android:name=".AlarmManagerReceiver" />
</intent-filter>
</receiver>
<service
android:name=".AlarmManagerService"
android:enabled="true" >
<intent-filter>
<action android:name=".AlarmManagerService" />
</intent-filter>
</service>