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我正在動態創建一個表，並將它保存在同一活動的文件中。時間表根據用戶輸入創建。某些輸入上的ANR對話框
編輯： - 這是我的課，我正在生成時間表的動態佈局。
public class CreateTimeTable extends Activity {
public static String[] tokens= new String[100];
public static int a,b;
Context con=this;
public int m,n,prod;
public final static String SAVETT="SAVETT.txt";
public static String str1="null";
public static String str2="\t";
public static String message="abc";
public static String message2="abc";
public static String EXTRA_MESSAGE="abc";
public static String str3="\n";
DatabaseHandler db =new DatabaseHandler(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create_time_table);
// Get the message from the intent
Intent intent = getIntent();
message = intent.getStringExtra(NewTT.EXTRA_MESSAGE); //day
message2 = intent.getStringExtra(NewTT.INPUT_SERVICE); //lec
int lec = Integer.parseInt(message2);
int day = Integer.parseInt(message);
Button bt = new Button(this);
a=lec; b=day;
m =lec+1;
n =day+1;
prod=m*n;
ScrollView sv = new ScrollView(this);
sv.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT));
TableLayout ll=new TableLayout(this);
HorizontalScrollView hsv = new HorizontalScrollView(this);
int t=0;
if(day==1)
{for(int i=-1;i<=lec;i++)
{ TableRow trow=new TableRow(this);
if(i==-1)
{ EditText tv1=new EditText(this);
EditText tv2=new EditText(this);
tv1.setText(" TIME ");
tv1.setId(t);
tv1.setEnabled(false);
tv1.setFocusable(false);
t++;
tv1.setTextSize(30);
tv1.setBackgroundResource(R.drawable.cell_shape);
trow.addView(tv1);
tv2.setText(" MONDAY ");
tv2.setTextSize(30);
tv2.setId(t);
tv2.setEnabled(false);
tv2.setFocusable(false);
t++;
tv2.setBackgroundResource(R.drawable.cell_shape);
trow.addView(tv2);
}
else if (i==lec)
{
bt.setText("SAVE");
bt.setTextSize(30);
trow.addView(bt);
}
else
{EditText e1=new EditText(this);
e1.setId(t);
e1.setTextSize(30);
t++;
e1.setBackgroundResource(R.drawable.cell_shape);
trow.addView(e1);
EditText e2=new EditText(this);
e2.setId(t);
t++;
e2.setTextSize(30);
e2.setBackgroundResource(R.drawable.cell_shape);
trow.addView(e2);
}
ll.addView(trow);
View v = new View(this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
v.setLayoutParams(params);
v.setBackgroundColor(getResources().getColor(android.R.color.transparent));
ll.addView(v);
}
}
// Similar 6 cases
}
hsv.addView(ll);
sv.addView(hsv);
sv.setBackgroundResource(R.drawable.blackboard);
setContentView(sv);
// Button that calls asynctask to save file
bt.setOnClickListener(new View.OnClickListener()
{ public void onClick(View view)
{
SaveFile sf = new SaveFile();
sf.execute(new String[] {"SAVETT.txt"});
Intent k = new Intent(getApplicationContext(), MainActivity.class);
k.addFlags(k.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(k);
}
}); }
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.create_time_table, menu);
return true;
}
private class SaveFile extends AsyncTask<String, Void, String>
{
protected String doInBackground(String... name)
{ String inputString ="abc";
System.out.println("Inside AsyncTask/n File Name is" + name[0]);
int i=0;
int t=0;
try
{ FileOutputStream fos = openFileOutput(name[0],Context.MODE_PRIVATE);
while(prod>0)
{ if(t%n==0)
{
EditText editText = (EditText) findViewById(t);
str1= editText.getText().toString();
fos.write(str1.getBytes());
fos.write("\t".getBytes());
t++;
}
else
{
EditText editText = (EditText) findViewById(t);
str1= editText.getText().toString();
fos.write(str1.getBytes());
fos.write("\t".getBytes());
t++;
}
prod--;
}
fos.close();
BufferedReader inputReader = new BufferedReader(new InputStreamReader(
openFileInput(name[0])));
StringBuffer stringBuffer = new StringBuffer();
while ((inputString = inputReader.readLine()) != null)
{
stringBuffer.append(inputString + "\n");
StringTokenizer tokenizer = new StringTokenizer(inputString);
int count = tokenizer.countTokens();
String[] arr = new String[tokenizer.countTokens()];
while(tokenizer.hasMoreElements())
{
arr[i]= tokenizer.nextToken();
i++;
}
i=0;
while(i<count)
{ System.out.println(arr[i]+"\n");
tokens[i]=arr[i];
i++;
}
}
}
catch(IOException e)
{
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String result)
{
System.out.println("Starting Service " + a + b);
Calendar cal = Calendar.getInstance();
Intent intent = new Intent(getApplicationContext(), Service_Notification.class);
intent.putExtra("DAYS",b);
int requestCode = (int) System.currentTimeMillis();
PendingIntent pintent = PendingIntent.getService(getApplicationContext(), requestCode, intent, 0);
AlarmManager alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
// Start every 60 seconds
alarm.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), 60*1000, pintent);
ComponentName receiver = new ComponentName(getApplicationContext(), BootReciever.class);
PackageManager pm = getApplicationContext().getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
}
}
}
當我點擊保存按鈕創建一個文件並保存內容。現在，因爲我正在使用Asynctask，所以文件被完美地創建。
03-17 04:15:51.605: W/System.err(3730): at android.os.Looper.loop(Looper.java:137)
03-17 04:15:51.605: W/System.err(3730): at android.app.ActivityThread.main(ActivityThread.java:5103)
03-17 04:15:51.605: W/System.err(3730): at java.lang.reflect.Method.invokeNative(Native Method)
03-17 04:15:51.616: W/System.err(3730): at java.lang.reflect.Method.invoke(Method.java:525)
03-17 04:15:51.616: W/System.err(3730): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
03-17 04:15:51.625: W/System.err(3730): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
03-17 04:15:51.625: W/System.err(3730): at dalvik.system.NativeStart.main(Native Method)
03-17 04:15:51.635: W/System.err(3730): java.text.ParseException: Unparseable date: "d" (at offset 0)
03-17 04:15:51.635: W/System.err(3730): at java.text.DateFormat.parse(DateFormat.java:555)
03-17 04:15:51.645: W/System.err(3730): at com.example.eduhub.Service_Notification.onStartCommand(Service_Notification.java:98)
03-17 04:15:51.645: W/System.err(3730): at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2704)
03-17 04:15:51.645: W/System.err(3730): at android.app.ActivityThread.access$1900(ActivityThread.java:141)
03-17 04:15:51.655: W/System.err(3730): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1353)
03-17 04:15:51.655: W/System.err(3730): at android.os.Handler.dispatchMessage(Handler.java:99)
03-17 04:15:51.655: W/System.err(3730): at android.os.Looper.loop(Looper.java:137)
03-17 04:15:51.655: W/System.err(3730): at android.app.ActivityThread.main(ActivityThread.java:5103)
03-17 04:15:51.655: W/System.err(3730): at java.lang.reflect.Method.invokeNative(Native Method)
03-17 04:15:51.655: W/System.err(3730): at java.lang.reflect.Method.invoke(Method.java:525)
03-17 04:15:51.655: W/System.err(3730): at com.android.internal.os.ZygoteInit$Meth
我的服務等級如下表所示：
public class Service_Notification extends Service
{ boolean i = true;
Context c = this;
CreateTimeTable obj = new CreateTimeTable();
public int onStartCommand(Intent intent, int flags, int startId) {
//TODO do something useful
NotificationManager nm = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
Resources res = this.getResources();
Notification.Builder builder = new Notification.Builder(this);
String inputString;
String[] alarm= new String[100];
int days = obj.b;
int lecs = obj.a;
System.out.println(" A is " + lecs + "B is "+ days);
int time;
int i=lecs,k=0;
long minutes;
long hours;
File name = new File(getFilesDir()+"/SAVETT.txt");
Calendar calendar = Calendar.getInstance();
int today = calendar.get(calendar.DAY_OF_WEEK);
long hour=calendar.get(calendar.HOUR_OF_DAY);
long min=calendar.get(calendar.MINUTE);
try{
if(name.exists())
{
BufferedReader inputReader = new BufferedReader(new InputStreamReader(
openFileInput("SAVETT.txt")));
StringBuffer stringBuffer = new StringBuffer();
while ((inputString = inputReader.readLine()) != null)
{
stringBuffer.append(inputString + "\n");
StringTokenizer tokenizer = new StringTokenizer(inputString);
int count = tokenizer.countTokens();
String[] arr = new String[tokenizer.countTokens()];
while(tokenizer.hasMoreElements())
{
arr[k]= tokenizer.nextToken();
k++;
}
k=0;
while(k<count)
{ System.out.println(arr[k]+"\n");
alarm[k]=arr[k];
k++;
}
}
System.out.println("Days:"+ days);
System.out.println("Lecs"+ lecs);
if(days!=0 && lecs!=0)
{
switch (today)
{
case 2: time = days+1;
while(i>0)
{
String str = alarm[time];
SimpleDateFormat formatter = new SimpleDateFormat("hh:mm");
try {
Date date = (Date)formatter.parse(str);
Calendar c2 = GregorianCalendar.getInstance(); // creates a new calendar instance
c2.setTime(date); // assigns calendar to given date
hours=c2.get(Calendar.HOUR_OF_DAY); // gets hour in 24h format
minutes=c2.get(Calendar.MINUTE);
System.out.println("TIME TABLE Hour:" + hours);
System.out.println("TIME TABLE minutes:" + minutes);
if(hours==hour && min==minutes)
{
Intent notificationIntent = new Intent(this, Attendance.class);
notificationIntent.putExtra("class",alarm[time+1]);
PendingIntent contentIntent = PendingIntent.getActivity(this,
0, notificationIntent,
PendingIntent.FLAG_CANCEL_CURRENT);
builder.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.ic_launcher)
.setLargeIcon(BitmapFactory.decodeResource(res, R.drawable.ic_launcher))
.setTicker(res.getString(R.string.Cal))
.setWhen(System.currentTimeMillis())
.setContentTitle("You Have a Lecture !!")
.setAutoCancel(true)
//.addAction(R.drawable.cross,"Cancel", btPendingIntent)
//.addAction(R.drawable.attn,"Attend" ,pIn)
.setLights(0xff00ff00,1000 * 6,1000*6)
.setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 })
.setContentText(alarm[time+1]);
Notification n = builder.getNotification();
nm.notify(0, n);
}
i--;
time=time+days;
}
catch (java.text.ParseException e) {
e.printStackTrace();
}
}
break;
case 3: time = days+1;
while(i>0)
{
String str = alarm[time];
SimpleDateFormat formatter = new SimpleDateFormat("hh:mm");
try {
Date date = (Date)formatter.parse(str);
Calendar c2 = GregorianCalendar.getInstance(); // creates a new calendar instance
c2.setTime(date); // assigns calendar to given date
hours=c2.get(Calendar.HOUR_OF_DAY); // gets hour in 24h format
minutes=c2.get(Calendar.MINUTE);
System.out.println("TIME TABLE Hour:" + hours);
System.out.println("TIME TABLE minutes:" + minutes);
if(hours==hour && min==minutes)
{
Intent notificationIntent = new Intent(this, Attendance.class);
notificationIntent.putExtra("class",alarm[time+2]);
PendingIntent contentIntent = PendingIntent.getActivity(this,
0, notificationIntent,
PendingIntent.FLAG_CANCEL_CURRENT);
/*Intent in = new Intent(getApplicationContext(), Record.class);
in.putExtra("class",alarm[time+1]);
PendingIntent pIn = PendingIntent.getBroadcast(getApplicationContext(), 0, in,0);
*/
builder.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.ic_books)
.setLargeIcon(BitmapFactory.decodeResource(res, R.drawable.ic_launcher))
.setTicker(res.getString(R.string.Cal))
.setWhen(System.currentTimeMillis())
.setAutoCancel(true)
.setContentTitle("You Have a Lecture !!")
//.addAction(R.drawable.cross, "Cancell", btPendingIntent)
//.addAction(R.drawable.attn,"Attending",pIn)
.setLights(0xff00ff00,1000 * 6,1000*6)
.setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 })
.setContentText(alarm[time+2]);
Notification n = builder.getNotification();
nm.notify(0, n);
}
i--;
time=time+days;
}
catch (java.text.ParseException e) {
e.printStackTrace();
}
}
break;
case 4: time = days+1;
while(i>0)
{
String str = alarm[time];
SimpleDateFormat formatter = new SimpleDateFormat("hh:mm");
try {
Date date = (Date)formatter.parse(str);
Calendar c2 = GregorianCalendar.getInstance(); // creates a new calendar instance
c2.setTime(date); // assigns calendar to given date
hours=c2.get(Calendar.HOUR_OF_DAY); // gets hour in 24h format
minutes=c2.get(Calendar.MINUTE);
System.out.println("TIME TABLE Hour:" + hours);
System.out.println("TIME TABLE minute:" + minutes);
if(hours==hour && min==minutes)
{
Intent notificationIntent = new Intent(this, Attendance.class);
notificationIntent.putExtra("class",alarm[time+3]);
PendingIntent contentIntent = PendingIntent.getActivity(this,
0, notificationIntent,
PendingIntent.FLAG_CANCEL_CURRENT);
/*Intent in = new Intent(getApplicationContext(), Record.class);
in.putExtra("class",alarm[time+1]);
PendingIntent pIn = PendingIntent.getBroadcast(getApplicationContext(), 0, in,0);*/
builder.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.ic_books)
.setLargeIcon(BitmapFactory.decodeResource(res, R.drawable.ic_launcher))
.setTicker(res.getString(R.string.Cal))
.setWhen(System.currentTimeMillis())
.setAutoCancel(true)
.setContentTitle("You Have a Lecture !!")
// .addAction(R.drawable.cross, "Cancell", btPendingIntent)
//.addAction(R.drawable.attn,"Attending",pIn)
.setLights(0xff00ff00,1000 * 6,1000*6)
.setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 })
.setContentText(alarm[time+3]);
Notification n = builder.getNotification();
nm.notify(0, n);
}
i--;
time=time+days;
}
catch (java.text.ParseException e) {
e.printStackTrace();
}
}
break;
case 5: time = days+1;
while(i>0)
{
String str = alarm[time];
SimpleDateFormat formatter = new SimpleDateFormat("hh:mm");
try {
Date date = (Date)formatter.parse(str);
Calendar c2 = GregorianCalendar.getInstance(); // creates a new calendar instance
c2.setTime(date); // assigns calendar to given date
hours=c2.get(Calendar.HOUR_OF_DAY); // gets hour in 24h format
minutes=c2.get(Calendar.MINUTE);
System.out.println("TIME TABLE Hour:" + hours);
System.out.println("TIME TABLE minute:" + minutes);
if(hours==hour && min==minutes)
{
Intent notificationIntent = new Intent(this, Attendance.class);
notificationIntent.putExtra("class",alarm[time+4]);
PendingIntent contentIntent = PendingIntent.getActivity(this,
0, notificationIntent,
PendingIntent.FLAG_CANCEL_CURRENT);
/*Intent in = new Intent(getApplicationContext(), Record.class);
in.putExtra("class",alarm[time+1]);
PendingIntent pIn = PendingIntent.getBroadcast(getApplicationContext(), 0, in,0);
*/
builder.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.ic_books)
.setLargeIcon(BitmapFactory.decodeResource(res, R.drawable.ic_launcher))
.setTicker(res.getString(R.string.Cal))
.setWhen(System.currentTimeMillis())
.setAutoCancel(true)
.setContentTitle("You Have a Lecture !!")
//.addAction(R.drawable.cross, "Cancell", btPendingIntent)
//.addAction(R.drawable.attn,"Attending",pIn)
.setLights(0xff00ff00,1000 * 6,1000*6)
.setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 })
.setContentText(alarm[time+4]);
Notification n = builder.getNotification();
nm.notify(0, n);
}
i--;
time=days;
}
catch (java.text.ParseException e) {
e.printStackTrace();
}
}
break;
case 6: time = days+1;
while(i>0)
{
String str = alarm[time];
SimpleDateFormat formatter = new SimpleDateFormat("hh:mm");
try {
Date date = (Date)formatter.parse(str);
Calendar c2 = GregorianCalendar.getInstance(); // creates a new calendar instance
c2.setTime(date); // assigns calendar to given date
hours=c2.get(c2.HOUR_OF_DAY); // gets hour in 24h format
minutes=c2.get(c2.MINUTE);
System.out.println("TIME TABLE Hour:" + hours);
System.out.println("TIME TABLE minute:" + minutes);
if(hours==hour && min==minutes)
{
Intent notificationIntent = new Intent(this, Attendance.class);
notificationIntent.putExtra("class",alarm[time+5]);
PendingIntent contentIntent = PendingIntent.getActivity(this,
0, notificationIntent,
PendingIntent.FLAG_CANCEL_CURRENT); builder.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.ic_books)
.setLargeIcon(BitmapFactory.decodeResource(res, R.drawable.ic_launcher))
.setTicker(res.getString(R.string.Cal))
.setWhen(System.currentTimeMillis())
.setAutoCancel(true)
.setContentTitle("You Have a Lecture !!")
//.addAction(R.drawable.cross, "Cancell", btPendingIntent)
//.addAction(R.drawable.attn,"Attending",pIn)
.setLights(0xff00ff00,1000 * 6,1000*6)
.setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 })
.setContentText(alarm[time+5]);
Notification n = builder.getNotification();
nm.notify(0, n);
}
i--;
time=time+days;
}
catch (java.text.ParseException e) {
e.printStackTrace();
}
}
break;
case 7:
time = days+1;
while(i>0)
{
String str = alarm[time];
SimpleDateFormat formatter = new SimpleDateFormat("hh:mm");
try {
Date date = (Date)formatter.parse(str);
Calendar c2 = GregorianCalendar.getInstance(); // creates a new calendar instance
c2.setTime(date); // assigns calendar to given date
hours=c2.get(Calendar.HOUR_OF_DAY); // gets hour in 24h format
minutes=c2.get(Calendar.MINUTE);
System.out.println("TIME TABLE Hour:" + hours);
System.out.println("TIME TABLE minute:" + minutes);if(hours==hour && min==minutes)
{
Intent notificationIntent = new Intent(this, Attendance.class);
notificationIntent.putExtra("class",alarm[time+6]);
PendingIntent contentIntent = PendingIntent.getActivity(this,
0, notificationIntent,
PendingIntent.FLAG_CANCEL_CURRENT);
/*Intent in = new Intent(getApplicationContext(), Record.class);
in.putExtra("class",alarm[time+1]);
PendingIntent pIn = PendingIntent.getBroadcast(getApplicationContext(), 0, in,0);
*/
builder.setContentIntent(contentIntent)
.setSmallIcon(R.drawable.ic_books)
.setLargeIcon(BitmapFactory.decodeResource(res, R.drawable.ic_launcher))
.setTicker(res.getString(R.string.Cal))
.setWhen(System.currentTimeMillis())
.setAutoCancel(true)
.setContentTitle("You Have a Lecture !!")
//.addAction(R.drawable.cross, "Cancell", btPendingIntent)
// .addAction(R.drawable.attn,"Attending",pIn)
.setLights(0xff00ff00,1000 * 6,1000*6)
.setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 })
.setContentText(alarm[time+6]);
Notification n = builder.getNotification();
nm.notify(0, n);
}
i--;
time=time+days;
}
catch (java.text.ParseException e) {
e.printStackTrace();
}
}
break;
}
}
}
}
catch(IOException e)
{
e.printStackTrace();
}
return Service.START_REDELIVER_INTENT;
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
無法弄清楚這個問題，但是當我開始在onPostExecute服務程序將顯示logcat的錯誤的循環如下問題開始。 （請幫助時，你的應用程序的應用程序的主線程（UI線程），它執行服用的時間不合理量上執行代碼出現
好吧..所以如果我打電話服務，並執行該服務的文件I/O會有所作爲？ – Ruchika
@Ruchika：默認情況下，android的Service類回調函數在主線程中執行，所以如果你想要保證安全性，也必須使用異步任務/工作者線程或其他任何方式從輔助線程執行此類操作可以做到這一點。 –
我已經使用AsynTask進行文件I/O。但是我的應用程序仍然顯示一個ANR對話框。這次我嘗試在textviews中寫點東西。 – Ruchika