Every fragment must have an empty constructor Android Java Class
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You have to add constructor!
public static class YourFragment extends Fragment {
//you have to add constructor!!!!!
public YourFragment(){}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.activity_main, container, false);
return view;
}
}
396LW NO topic_id
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Další témata ....(Topics)
Start Stop Stopwatch Timer Android example source code.
private static long mStartTime = 0L;
Calendar cal;
TextView hTextViewVypis = (TextView)findViewById(R.id.idTextVypis);
void start(){
cal = Calendar.getInstance();
mStartTime = cal.getTimeInMillis();
}
void stop(){
prinOutStopWatchTime();
}
private void prinOutStopWatchTime() {
final long start = mStartTime;
cal = Calendar.getInstance();
long stopTime = cal.getTimeInMillis();
long millis = stopTime - start;
long milisekundy = millis % 1000;
int seconds = (int) (millis / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;
int hour = minutes / 60;
hour = hour % 60;
if (seconds < 10) {
hTextViewVypis.setText(hour + ":" + minutes + ":0" + seconds + ":" + milisekundy);
} else {
hTextViewVypis.setText(hour + ":" + minutes + ":" + seconds + ":" + milisekundy);
}
}
[2013-07-06 16:10:29 - SDK Manager] [SDK Manager] Error: Error parsing the sdk.
[2013-07-06 16:10:29 - SDK Manager] [SDK Manager] Error: Failed to create C:\Program Files\android\sdk\add-ons.
[2013-07-06 16:10:29 - SDK Manager] [SDK Manager] Error: Unable to parse SDK content.
You have to create add-ons folder as admin of PC
[2013-07-06 16:10:29 - SDK Manager] [SDK Manager] Error: Failed to create C:\Program Files\android\sdk\add-ons.
[2013-07-06 16:10:29 - SDK Manager] [SDK Manager] Error: Unable to parse SDK content.
You have to create add-ons folder as admin of PC
Go to Eclipse menu:
Window -> Preferences -> Java -> Code Style -> Formatter
Press NEW profile or EDIT if have you some profile.
Setup your settings.
Save settings.
Window -> Preferences -> Java -> Code Style -> Formatter
Press NEW profile or EDIT if have you some profile.
Setup your settings.
Save settings.

Dialog Yes No sample code
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Are you sure you want to exit application?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
MyActivity.this.finish(); //Close this Activity for example: MyActivity.java
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// some code if you want
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
Throws multiple exceptions Java example source code
public void callFc()
throws IndexOutOfBoundsException, ArithmeticException
{
// my code for example:
String[] sArray = {"aa","bb"};
String str = sArray[5]; // IndexOutOfBoundsException
int n = 5 / 0; // ArithmeticException
}
public void someFC (){
try{
callFc();
}
catch(IndexOutOfBoundsException e){
Log.e("TAG", e.toString());
}
catch(ArithmeticException e2){
Log.e2("TAG",e2.toString());
}
}
Editace: 2014-09-10 10:40:35
Počet článků v kategorii: 396
Url:every-fragment-must-have-an-empty-constructor-android-java-class
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