-
-
Save codeforfun-jp/de7e0c712560bd4be7931d344ebababb to your computer and use it in GitHub Desktop.
【Kotlin】How to Use SeekBar 5
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package com.example.seekbarsample | |
import androidx.appcompat.app.AppCompatActivity | |
import android.os.Bundle | |
import android.widget.Button | |
import android.widget.SeekBar | |
import android.widget.TextView | |
class MainActivity : AppCompatActivity() { | |
override fun onCreate(savedInstanceState: Bundle?) { | |
super.onCreate(savedInstanceState) | |
setContentView(R.layout.activity_main) | |
val textView = findViewById<TextView>(R.id.textView) | |
val seekbar = findViewById<SeekBar>(R.id.seekbar) | |
val button = findViewById<Button>(R.id.button) | |
// 初期値を表示 | |
textView.text = "${seekbar.progress}" | |
// 「リセット」を押したら50にする | |
button.setOnClickListener { | |
seekbar.progress = 50 | |
} | |
// SeekBarイベント | |
seekbar.setOnSeekBarChangeListener( | |
object : SeekBar.OnSeekBarChangeListener { | |
override fun onProgressChanged(p0: SeekBar?, p1: Int, p2: Boolean) { | |
textView.text = "$p1" | |
} | |
override fun onStartTrackingTouch(p0: SeekBar?) { | |
} | |
override fun onStopTrackingTouch(p0: SeekBar?) { | |
} | |
} | |
) | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment