Hello stackoverflow users, I am stuck into a problem. I have created a custom number picker in android, eclipse.I put a limitation for number picker to don't go more than 35 and less than 10.The problem is, when I press continuous the button for + or - and I reach the limit, the toast continuously appear on the screen where I setted it up.The time I setted is Short so it's like 4-5 secconds of appearing and there is a little spark where toasts changes( for example: one toast disspear another already is there or now appearing I don't know )
I have the longclicklistener function here:
add.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
mAutoIncrement = true;
repeatUpdateHandler.post(new RptUpdater() );
return false;
}
});
add.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if( (event.getAction()==MotionEvent.ACTION_UP || event.getAction()==MotionEvent.ACTION_CANCEL) && mAutoIncrement )
mAutoIncrement = false;
return false;
}
});
sub.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
mAutoDecrement = true;
repeatUpdateHandler.post(new RptUpdater() );
return false;
}
});
sub.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if( (event.getAction()==MotionEvent.ACTION_UP || event.getAction()==MotionEvent.ACTION_CANCEL) && mAutoDecrement )
mAutoDecrement = false;
return false;
}
});
and the decrement and increment function with the Toast is here:
public void increment(){
if(counter<35){
counter++;
display.setText( "" + counter+"°C");
showup.setText(" "+counter+"°C");
}
else
{
Context context = getApplicationContext();
CharSequence text = "Maximum value is 35°C!";
int duration = Toast.LENGTH_SHORT;
final Toast toast = Toast.makeText(context, text, duration);
toast.show();
toast.setGravity(Gravity.TOP, 0, 100);
}
}
public void decrement(){
if(counter>10){
counter--;
display.setText( "" + counter+"°C");
showup.setText(" "+counter+"°C");
}
else
{
Context context = getApplicationContext();
CharSequence text = "Minimum value is 10°C!";
int duration = Toast.LENGTH_SHORT;
final Toast toast = Toast.makeText(context, text, duration);
toast.show();
toast.setGravity(Gravity.BOTTOM, 0, 50);
}
}
If anyone need to take a look on the whole code here is it:
package com.example.symbol_temp;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.ActionBarActivity;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
Integer counter=20;
Button add,sub;
static int REP_DELAY = 50;
public TextView display,showup;
private Handler repeatUpdateHandler = new Handler();
private boolean mAutoIncrement = false;
private boolean mAutoDecrement = false;
class RptUpdater implements Runnable {
public void run() {
if( mAutoIncrement ){
increment();
repeatUpdateHandler.postDelayed( new RptUpdater(), REP_DELAY );
} else if( mAutoDecrement ){
decrement();
repeatUpdateHandler.postDelayed( new RptUpdater(), REP_DELAY );
}
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
add = (Button) findViewById(R.id.plus);
sub = (Button) findViewById(R.id.minus);
display = (TextView) findViewById(R.id.showtemperature);
showup = (TextView) findViewById(R.id.showmeup);
showup.setText(" "+counter+"°C");
display.setText(""+counter+"°C");
add.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(counter<35){
counter++;
display.setText( "" + counter+"°C");
showup.setText(" "+counter+"°C");
}
else{
Context context = getApplicationContext();
CharSequence text = "Maximum value is 35°C!";
int duration = Toast.LENGTH_SHORT;
final Toast toast = Toast.makeText(context, text, duration);
toast.show();
toast.setGravity(Gravity.TOP, 0, 100);
}
}
});
sub.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if(counter>10){
counter--;
display.setText( "" + counter+"°C");
showup.setText(" "+counter+"°C");
}
else{
Context context = getApplicationContext();
CharSequence text = "Minimum value is 10°C!";
int duration = Toast.LENGTH_SHORT;
final Toast toast = Toast.makeText(context, text, duration);
toast.show();
toast.setGravity(Gravity.BOTTOM, 0, 50);
}
}
});
add.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
mAutoIncrement = true;
repeatUpdateHandler.post(new RptUpdater() );
return false;
}
});
add.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if( (event.getAction()==MotionEvent.ACTION_UP || event.getAction()==MotionEvent.ACTION_CANCEL) && mAutoIncrement )
mAutoIncrement = false;
return false;
}
});
sub.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
mAutoDecrement = true;
repeatUpdateHandler.post(new RptUpdater() );
return false;
}
});
sub.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if( (event.getAction()==MotionEvent.ACTION_UP || event.getAction()==MotionEvent.ACTION_CANCEL) && mAutoDecrement )
mAutoDecrement = false;
return false;
}
});
if(savedInstanceState != null)
counter = savedInstanceState.getInt("myCounter");
display.setText( "" + counter+"°C");
showup.setText(" "+counter+"°C");
}
public void increment(){
if(counter<35){
counter++;
display.setText( "" + counter+"°C");
showup.setText(" "+counter+"°C");
}
else
{
Context context = getApplicationContext();
CharSequence text = "Maximum value is 35°C!";
int duration = Toast.LENGTH_SHORT;
final Toast toast = Toast.makeText(context, text, duration);
toast.show();
toast.setGravity(Gravity.TOP, 0, 100);
}
}
public void decrement(){
if(counter>10){
counter--;
display.setText( "" + counter+"°C");
showup.setText(" "+counter+"°C");
}
else
{
Context context = getApplicationContext();
CharSequence text = "Minimum value is 10°C!";
int duration = Toast.LENGTH_SHORT;
final Toast toast = Toast.makeText(context, text, duration);
toast.show();
toast.setGravity(Gravity.BOTTOM, 0, 50);
}
}
protected void onSaveInstanceState(Bundle savedInstance) {
super.onSaveInstanceState(savedInstance);
savedInstance.putInt("myCounter",counter);
}
}
I have readed the stackoverflow topic here: How to Customize Toast In Android but didn't helped me ( at the suggestion of creating project name )
You could only repeat if the number is not already the max for add / min for subtract:
class RptUpdater implements Runnable {
public void run() {
if( mAutoIncrement && counter<35){
increment();
repeatUpdateHandler.postDelayed( new RptUpdater(), REP_DELAY );
} else if( mAutoDecrement && counter>10){
decrement();
repeatUpdateHandler.postDelayed( new RptUpdater(), REP_DELAY );
}
}
}