Develop Reference

Android Multiple seekbar in expandable listview

I have expandable ListView with cds as a groups and tracks as a children. Each child has TextView, ImageButton(playButton) and SeekBar.
Now when I clicked one of the playButtons I want to get access to related seekBar.
My problem is that I have global SeekBar and I can't get the right SeekBar object to set my Runnable object correctly. So when I have for example 3 children, I click the first play button, but the third SeekBar is starting.
I have no idea how to resolve it. Any suggestions? This code is in getChildView() method.
SeekBar sb_songProgress;
iv_trackRowIcon.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View view)
{
int song = l_cds.get(groupPosition).getTracks().get(childPosition).getTrackID();
if(ArtistCardActivity.mediaPlayer.isPlaying())
ArtistCardActivity.mediaPlayer.stop();
ArtistCardActivity.mediaPlayer.newTrack(song);
int finalTime = ArtistCardActivity.mediaPlayer.getDuration();
sb_songProgress.setMax((int) finalTime);
sb_songProgress.setClickable(false);
updateProgress(sb_songProgress);
}
});
public void updateProgress(SeekBar sb)
{
int timeElapsed = ArtistCardActivity.mediaPlayer.getCurrentPosition();
sb_songProgress.setProgress((int) timeElapsed);
durationHandler.postDelayed(updateSeekBarTime, 100);
}
Runnable updateSeekBarTime = new Runnable()
{
public void run()
{
int timeElapsed = ArtistCardActivity.mediaPlayer.getCurrentPosition();
//set seekbar progress
sb_songProgress.setProgress((int) timeElapsed);
durationHandler.postDelayed(this, 100);
}
};

You have to use the ViewHolder pattern (see here, section "Overriding BaseAdapter"), then you will be able to handle seekbar progress with ViewHolder this way:
myHolder.sb_songProgress.setProgress((int) timeElapsed);
Hope it'll work

seekBar off by one driving me crazy

This seekBar is driving me nuts! Help me do this efficiently? I would like to have my starting value at 0 and max number displayed in textView $1,000,000. I would like to increment by $5,000. I also have tickers (plus and minus buttons) but they are off too because of my progress changed / textView display. it seems my textView is always 5,000 less than my actual progress. I can only get to 995,00 0 or do it differently and it skips from 10k to 0.
textView23 = (TextView) view.findViewById(R.id.textView23);
seekBar1.setMax(199);
seekBar1.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (fromUser)
{
{
int newValue = seekBar.getProgress()* (5000);
String nValue = NumberFormat.getInstance().format(newValue);
textView23.setText("$" + nValue);
}
tempHouse = progress;
Calculate();
}
}

Since 1000000 = 200 * 5000, it seems that
seekbar.setMax(200)
would be the correct value ;)

Limit SeekBar Progress Within 20<Range<5000 to one popup

My SeekBar thumb must move within range 20 to 5000.
I need to prevent the thumb to move below 20. when this amount is reached, a toast message appear telling the user "minimum value reached".
However when i slide to minimum value and forced slide on limit, that is multiple slide towards 20, several popup appears onscreen. How can i limit to only one popup on screen on multiple slide towards minimum or maximum value.
Here is my .setOnSeekBarChanged listener :
sbMensualite.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
progress = progress / 1;
progress = progress * 1;
if (progress<20){
progress=20;
}
else {}
if (duree_int>=Constant.DUREE_MAX_VALUE){
Toast.message="durée maximum atteinte";
m.startActivity(new Intent(m, Toast.class));
}else if (duree_int<=Constant.DUREE_MIN_VALUE){
Toast.message="durée minimum atteinte";
m.startActivity(new Intent(m, Toast.class));
}else {
//set progress duree android
sbDDuree.setProgress(duree_int);
//set amount of month for duree
txDDure.setText(Util.doubleNoDp(duree));
}
//set mensualite amount
txMensualite.setText(Util.decimalFormat(progress));
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});

I need to prevent the thumb to move below 20. when this amount is reached, a toast message appear telling the user "minimum value reached".
First. Make the range of your slider be 0-4980. And every time you read the value add +20. If you want to set the value programmatically from a variable add -20.
Second, you really should NOT show a toast to tell that the minimum value was reached, because, using the method described in the previous paragraph, this will be obvious.
EDIT:
Would limiting the duree_int variable work for you???
if (duree_int>Constant.DUREE_MAX_VALUE){
duree_int = Constant.DUREE_MAX_VALUE;
Toast.message="durée maximum atteinte";
m.startActivity(new Intent(m, Toast.class));
}else if (duree_int<Constant.DUREE_MIN_VALUE){
duree_int = Constant.DUREE_MIN_VALUE;
Toast.message="durée minimum atteinte";
m.startActivity(new Intent(m, Toast.class));
}else {

To cancel your existing toast and show a new one after, try this:
Toast myToast = new Toast(getApplicationContext());
sbMensualite.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
progress = progress / 1;
progress = progress * 1;
if (progress<20){
progress=20;
}
if (duree_int>=Constant.DUREE_MAX_VALUE){
myToast.cancel(); //hide existing toast
myToast.setText("durée maximum atteinte");
myToast.setDuration(Toast.LENGHT_SHORT);
myToast.show();
}else if (duree_int<=Constant.DUREE_MIN_VALUE){
myToast.cancel(); //hide existing toast
myToast.setText("durée minimum atteinte");
myToast.setDuration(Toast.LENGHT_SHORT);
myToast.show();
}else {
//set progress duree android
sbDDuree.setProgress(duree_int);
//set amount of month for duree
txDDure.setText(Util.doubleNoDp(duree));
}
//set mensualite amount
txMensualite.setText(Util.decimalFormat(progress));
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
});

Restart CountDownTimer on click

I have a simple CountDownTimer that displays its content in a textView. I am trying to accomplish the following:
during count down, the view is not clickable: textview.setClickable(false);
after count down finish, if the user clicks the textview, the count down should restart.
So I try a combination of
#Override
public void onFinish() {//inside CountDownTimer
view.setClickable(true);
}
and
textview.setOnClickListener(countAgain);
OnClickListener countAgain = new OnClickListener() {//inside activity
#Override
public void onClick(View v) {
// counter.cancel();
counter.start();
}
};
But this is not doing it. Any ideas?

Set onclick listener for that text view, make it clickable .
In onclicklistner, make textview as non-clickable( yourTextView.setclickable(false) ).
change the text view values as you want and every time check the value against 0. When it becomes zero, make the text view clickable( yourTextView.setclickable(true) ).

Using a SeekBar within a ListView

I have a seekbar in a listview, it is disabled to stop the user from changing the value whilst scrolling the list. I wish to enable it if the list item is long clicked, allow the user to change it and then disable it again.
Any suggestions.
I seem unable to access the seekbar from the activity as it is setup inside the ArrayAdapter to display a value from the database
I am able to fire a both a click event and a long click event for the list item, as the seekbar is currently disabled.

Solution
In the ArrayAdapter I set both enabled and focusable to false and added the SeekBar listener, setting the attributes to false allowed me to use the list item onItemClicked listener. Inside the onItemCLickListener I retreived the seekbar, set the attributes to true, this meant it could be slid up or down. I then disabled it after the adjustment had been made. code below
ArrayAdapter Snippet
this code is inside the creation of the list item, in which the seekbar is housed
seekBar.setClickable(false);
seekBar.setFocusable(false);
seekBar.setEnabled(false);
/* attach listener */
attachProgressUpdatedListener(seekBar, positionOfItemInList);
AttachProgressUpdatedListener
this method attaches the listener to the seekbar, inside the arrayAdapter class
private void attachProgressUpdatedListener(SeekBar seekBar,
final int position) {
seekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
public void onStopTrackingTouch(SeekBar seekBar) {
int progress = seekBar.getProgress();
int task_id = (Integer) seekBar.getTag();
TaskHandler taskHandler = new TaskHandler(DBAdapter
.getDBAdapterInstance(getContext()));
taskHandler.updateTaskProgress(task_id, progress);
mList.get(position).setProgress(progress);
//need to fire an update to the activity
notifyDataSetChanged();
seekBar.setEnabled(false);
}
public void onStartTrackingTouch(SeekBar seekBar) {
// empty as onStartTrackingTouch listener not being used in
// current implementation
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// empty as onProgressChanged listener not being used in
// current implementation
}
});
}
OnItemCLickListener
this snipped is from the activity which houses the list view.
taskListView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
SeekBar sb = (SeekBar) view.findViewById(R.id.seek);
sb.setFocusable(true);
sb.setEnabled(true);
}
});

I had overcame this issue by setting the following attributes to the seekbar in listview item layout file. Then I had the click event of listitem and seekbar working.
android:focusable="false"
android:focusableInTouchMode="false"
<SeekBar
android:id="#+id/playback_icon"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:progress="0"
android:progressDrawable="#drawable/red_scrubber_progress"
android:thumb="#drawable/red_scrubber_control"
android:focusable="false"
android:focusableInTouchMode="false"/>