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android - 从 intent android 获取错误的值

转载 作者:行者123 更新时间:2023-11-29 15:50:25 26 4
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我是 android 的新手,我正在开发我的第一个基于位置的提醒应用程序。我正在添加带有位置、日期和时间的任务,当我到达时会收到通知。我正在为任务正确收到警报。问题是当为任务生成警报时,当我单击通知时它应该显示在 Activity 中。我没有得到警报任务的值..

在下面的代码中,我将任务值传递给 Alertview Activity 。

代码

private void processTasks() {

List<Task> tasks = loadFiles();

if(tasks == null || tasks.size() < 1){
// Toast.makeText(getApplicationContext(),"No Tasks Found",Toast.LENGTH_LONG).show();
}
// Toast.makeText(getApplication(),"Number of Tasks " + tasks.size(),Toast.LENGTH_LONG).show();

for (Task task : tasks) {

if (tasks != null && task.alert) {
Log.i("Task is ",task.toString());
//Toast.makeText(getApplicationContext(),"Your Task is " + task.toString(),Toast.LENGTH_LONG).show();

// if in time range
boolean timeRange = false;

// if in loc range
boolean locRange = false;
float dst = 0.0f;
if(lat > 0.0 && lon > 0.0)
{
float[] results = new float[1];
Location.distanceBetween(lat, lon, task.getTaskLat(), task.getTaskLon(), results);
float distanceInMeters = results[0];
dst = distanceInMeters;
Log.i("dist",""+distanceInMeters);
boolean isWithin5km = distanceInMeters < 5000;
locRange = isWithin5km;
}
Log.i("bool",""+locRange);
// Toast.makeText(this,"dist is " + dst ,Toast.LENGTH_LONG).show();

if(dst < 5000){
// Toast.makeText(getApplicationContext(),"Booooom",Toast.LENGTH_LONG).show();
locRange = true;
}
else {
locRange = false;
// Toast.makeText(getApplicationContext(),"Faaalse",Toast.LENGTH_LONG).show();
}

// Toast.makeText(getApplicationContext(),"Date is " + task.getDateString(),Toast.LENGTH_LONG).show();

// format date
String datearr[] = task.getDateString().split("/");
int day = Integer.parseInt(datearr[0]);
int month = Integer.parseInt(datearr[1]);
month--;
int year = Integer.parseInt(datearr[2].trim());

// Toast.makeText(getApplicationContext(),"Date is " + datearr,Toast.LENGTH_LONG).show();

// Toast.makeText(getApplicationContext(),"Time is " + task.getTimeString(),Toast.LENGTH_LONG).show();
//format time
String timearr[] = task.getTimeString().split(":");

if (timearr!=null)
{
Log.i("=>",timearr.toString());
//Toast.makeText(getApplicationContext(),"Time is " + timearr.toString(),Toast.LENGTH_LONG).show();
}
else {
Log.e("tme null","time null");
// Toast.makeText(getApplicationContext(),"Time is Null",Toast.LENGTH_LONG).show();
}

int hour = Integer.parseInt(timearr[0]);
int minute = Integer.parseInt(timearr[1]);

// month range 0-11
Calendar event = Calendar.getInstance();
event.set(year, month, day, hour, minute);

Calendar now = Calendar.getInstance();

Log.i("event", "" + event.toString());
Log.i("now", "" + now.toString());

int hourNow = now.get(Calendar.HOUR_OF_DAY);
int dNow = now.get(Calendar.DAY_OF_MONTH);
int mNow = now.get(Calendar.MONTH);
int yNow = now.get(Calendar.YEAR);
int minNow = now.get(Calendar.MINUTE);

Log.i("year", "" + yNow + " y " + year);
Log.i("mnth", "" + mNow + " m " + month);
Log.i("day", "" + dNow + " d " + day);
Log.i("minute","" + minNow + "min" + minute);

if (yNow == year && mNow == month && dNow == day) {
if (hourNow == hour && minNow == minute) {
timeRange = true;
} else {
Log.i("hour", "" + (hour - hourNow));
}
}
// Toast.makeText(getApplicationContext(),"Values are :- " + day + " , " + month + " , " + year + " , " + hour + " , " + minute,Toast.LENGTH_LONG).show();

// timeRange = true;
// Toast.makeText(getApplication(),"Time Range is " + timeRange,Toast.LENGTH_LONG).show();
// Toast.makeText(getApplicationContext(),"Loc Range is " + locRange,Toast.LENGTH_LONG).show();

if (timeRange && locRange) {
Toast.makeText(getApplicationContext(),"Your Task is " + task.toString(),Toast.LENGTH_LONG).show();

Gson gson = new Gson();
String JSON = gson.toJson(task);
Intent intent = new Intent(this, Alertview.class);
intent.putExtra("extra", JSON);
PendingIntent pIntent = PendingIntent.getActivity(this, 0,
intent, 0);

NotificationCompat.Builder builder = new NotificationCompat.Builder(
getApplicationContext());
builder.setSmallIcon(R.drawable.ic_launcher);
builder.setContentTitle("Alert !!!!");
builder.setContentText("You are near your Point of Interest !!");
builder.setContentIntent(pIntent);
builder.setAutoCancel(true);
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
manager.notify(99, builder.build());

task.alert = false;
persistTask(task);

}

}
}
}

Alertview Activity :-

public class Alertview extends Activity {

Task task;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.alert_view);

Bundle extras = getIntent().getExtras();
String JSON = extras.getString("extra");

Gson gson = new Gson();
task = gson.fromJson(JSON, Task.class);

TextView textView = (TextView)findViewById(R.id.textView5);
textView.setText(task.toString());
//Toast.makeText(getApplicationContext(),"Your Task is " + task.toString(),Toast.LENGTH_LONG).show();

}
}

为警报添加的任务是:-任务名称:- MatungaLoc :-马通加劳动营日期:- 22/5/2015时间:- 22:16

当我触发警报时,我得到以下值:-任务名称:- MatungaLoc :-锡永SIES学院日期:- 22/5/2015时间:- 11:11

我第二次添加警报时:-任务名称:- 锡安Loc :-Transist阵营日期:- 22/5/2015时间:- 22:19

使用以下值触发警报:-任务名称:- MatungaLoc :-锡永SIES学院日期:- 22/5/2015时间:- 11:11

M 在通过 Intent 之前添加的 Toast 中获取正确的值。

if (timeRange && locRange) {
Toast.makeText(getApplicationContext(),"Your Task is " + task.toString(),Toast.LENGTH_LONG).show();

最佳答案

由于您的 PendingIntent 已经存在,因此您的 Intent 数据不会得到更新。要更新它,您需要将 PendingIntent 标记为 PendingIntent.FLAG_UPDATE_CURRENT

 PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

根据 PendingIntent文档。

public static final int FLAG_UPDATE_CURRENT

Flag indicating that if the described PendingIntent already exists, then keep it but replace its extra data with what is in this new Intent.

关于android - 从 intent android 获取错误的值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30401040/

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