Trying to implement swipe movement - android-fragments

Question

public class CoursesActivity extends SherlockFragmentActivity {
ArrayList<CourseData> mCoursesList = new ArrayList<CourseData>();
public CoursesListAdapter coursesListAdapter;
public ListView mList;
public AlertDialog.Builder dlgAlert;
public Dialog loginDialog;
public Dialog loginDialogOverflow;
LinearLayout progressBar;
static SQLiteWebcourse dbHelper;
private GestureDetectorCompat mDetector;
public final static String EXTRA_MESSAGE = "com.technion.coolie.webcourse.MESSAGE";
public CoursesActivity() {
dbHelper = new SQLiteWebcourse(this, "WebcoureDB", null, 1);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Create list of courses
mCoursesList = new ArrayList<CourseData>();
setContentView(R.layout.web_activity_courses);
mList = (ListView) findViewById(R.id.courses_list);
dlgAlert = new AlertDialog.Builder(getApplicationContext());
if (!CoolieAccount.WEBCOURSE.isAlreadyLoggedIn()) {
loginDialog = CoolieAccount.WEBCOURSE.openSigninDialog(this);
OnDismissListener dismissListener = new OnDismissListener() {
#Override
public void onDismiss(DialogInterface dialog) {
// Check if connection success
if (CoolieAccount.WEBCOURSE.isAlreadyLoggedIn()) {
// Connection SUCCESS
progressBar = (LinearLayout) findViewById(R.id.progressBarLayout_courses);
progressBar.setVisibility(View.VISIBLE);
asyncParse<CourseData> a = new asyncParse<CourseData>() {
#Override
protected List<CourseData> doInBackground(
String... params) {
// TODO Auto-generated method stub
try {
courseList crL = new courseList(
getApplicationContext());
crL.getCourses(CoolieAccount.WEBCOURSE
.getUsername(),
CoolieAccount.WEBCOURSE
.getPassword());
mCoursesList = dbHelper
.getAllCourses(CoolieAccount.WEBCOURSE
.getUsername());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return super.doInBackground(params);
}
#Override
protected void onPostExecute(List<CourseData> result) {
// TODO Auto-generated method stub
CoursesListAdapter coursesListAdapter = new CoursesListAdapter(
getApplicationContext(), mCoursesList);
mList.setAdapter(coursesListAdapter);
mList.setBackgroundColor(0xFFF0F0F0);
progressBar.setVisibility(View.INVISIBLE);
super.onPostExecute(result);
}
};
a.execute("");
} else {
// Connection FAILED
Log.v("dbAss", "Second Time");
}
}
};
loginDialog.setOnDismissListener(dismissListener);
} else {
mCoursesList = dbHelper.getAllCourses(CoolieAccount.WEBCOURSE
.getUsername());
CoursesListAdapter coursesListAdapter = new CoursesListAdapter(
getApplicationContext(), mCoursesList);
mList.setAdapter(coursesListAdapter);
mList.setBackgroundColor(0xFFF0F0F0);
}
Log.v("Gestures", "OnTouchEvent#!$#%##%^&^$%");
// OnItemClickListener itemClicked = new OnItemClickListener() {
//
// #Override
// public void onItemClick(AdapterView<?> list, View view,
// int position, long id) {
// // TODO Auto-generated method stub
// loadCourseInformationActivity(((CourseData) mList
// .getItemAtPosition(position)).CourseDescription);
// }
// };
// mList.setOnItemClickListener(itemClicked);
mDetector = new GestureDetectorCompat(this, new MyGestureListener());
}
#Override
public boolean onTouchEvent(MotionEvent event) {
Log.v("Gestures", "OnTouchEvent#!$#%##%^&^$%");
this.mDetector.onTouchEvent(event);
// Be sure to call the superclass implementation
return super.onTouchEvent(event);
}
class MyGestureListener extends GestureDetector.SimpleOnGestureListener {
private static final String DEBUG_TAG = "Gestures";
#Override
public boolean onFling(MotionEvent event1, MotionEvent event2,
float velocityX, float velocityY) {
Log.v(DEBUG_TAG,
"onFling: " + event1.toString() + event2.toString());
Toast.makeText(getApplicationContext(), "SWIPED", Toast.LENGTH_LONG)
.show();
if (event2.getX() - event1.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)
Toast.makeText(getApplicationContext(), "SWIPED",
Toast.LENGTH_LONG).show();
// if (showDeleteButton(e1))
// return true;
return super.onFling(event1, event2, velocityX, velocityY);
}
}
}
Hey fellas, i'm trying to implement swipe detection I went through android lesson and did exactly what is written there: http://developer.android.com/training/gestures/detector.html
For some reason when I touch the screen it doesnt go to onTouchEvent. What seems to be the problem?

Answer 1

You haven't set the touch listener to your ListView.
listView.setOnTouchListener(this);