Vertical Seek not progress value not showing on MainActivity textView
- by Raju Gujarati
I am try to display the progress value of the seekBar but when it comes to the execution, there is no update on the value being display on the TextView. I wonder what alternatives than putting two classes onto one big class in order to archive this aim ?
The below is my code
VerticalSeekBar.java
package com.example.imagerotation;
import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.SeekBar;
import android.widget.Toast;
public class VerticalSeekBar extends SeekBar {
public VerticalSeekBar(Context context) {
super(context);
}
public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public VerticalSeekBar(Context context, AttributeSet attrs) {
super(context, attrs);
}
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(h, w, oldh, oldw);
}
@Override
protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(heightMeasureSpec, widthMeasureSpec);
setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
}
protected void onDraw(Canvas c) {
c.rotate(-90);
c.translate(-getHeight(), 0);
super.onDraw(c);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabled()) {
return false;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_MOVE:
case MotionEvent.ACTION_UP:
int progress = getMax() - (int) (getMax() * event.getY() / getHeight());
setProgress(progress);
onSizeChanged(getWidth(), getHeight(), 0, 0);
//Toast.makeText(getContext(), String.valueOf(progress), Toast.LENGTH_SHORT).show();
break;
case MotionEvent.ACTION_CANCEL:
break;
}
return true;
}
}
MainActvity.java
package com.example.imagerotation;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
public class MainActivity extends Activity {
private VerticalSeekBar seek;
private TextView by;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
seek = (VerticalSeekBar)findViewById(R.id.seekBar1);
by = (TextView)findViewById(R.id.textView1);
by.setText(String.valueOf(seek.getProgress()));
}
}
