seekBar.setOnSeekBarChangeListener(object:SeekBar.OnSeekBarChangeListener {
override fun onStopTrackingTouch(seekBar: SeekBar?) {
}
override fun onStartTrackingTouch(seekBar: SeekBar?) {
}
override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
//折扣TextView
discount.setText(progress.toString()+"%")
}
}
)
Seekbar 拖曳時
seekBar.setOnSeekBarChangeListener(object:SeekBar.OnSeekBarChangeListener {
override fun onStopTrackingTouch(seekBar: SeekBar?) {
}
override fun onStartTrackingTouch(seekBar: SeekBar?) {
}
override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
after.setText("${editText.text.toString().toFloat()*progress/100}")
pg = progress
//pg 為全域變數,用來儲存 progress 供其他地方使用
}
}
)
當Edittext 輸入 不一樣的價格
editText.addTextChangedListener(object:TextWatcher{
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
}
override fun afterTextChanged(s: Editable?) {
if (editText.text.toString()!= "" )
after.setText("${editText.text.toString().toFloat()*pg/100}")
else
after.setText("0")
}
}
)