[Java] SeekBar

res/drawable/seek_bar_thumb.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 원모양의 시크바 컨트롤러 -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval"
    android:useLevel="false"  >
    <!-- 배경 -->
    <solid
        android:color="@android:color/white"/>
    <!-- 크기 -->
    <size
        android:width="16dp"
        android:height="16dp"/>
</shape>

seek_bar_thumb.xml

 

 

 

 

 

 

res/drawable/seek_bar_progress.xml

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:id="@+id/background">
        <shape android:shape="line">
            <stroke
                android:width="4dp"
                android:color="@android:color/holo_blue_bright"/>
        </shape>
    </item>

    <item android:id="@+id/secondaryProgress">
        <clip>
            <shape android:shape="line">
                <stroke
                    android:width="4dp"
                    android:color="@android:color/holo_blue_bright"/>
            </shape>
        </clip>
    </item>

    <item android:id="@+id/progress">
        <clip>
            <shape android:shape="line">
                <stroke
                    android:width="4dp"
                    android:color="#FF541F"/>
            </shape>
        </clip>
    </item>

</layer-list>

seek_bar_progress.xml

 

 

 

 

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#68000000"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/tvProgress"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="20"
        android:textSize="50dp"
        android:textStyle="italic"
        android:textColor="@android:color/white"
        android:layout_gravity="center"/>

    <TextView
        android:id="@+id/tvClick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Ready"
        android:textSize="30dp"
        android:textStyle="bold"
        android:textColor="@android:color/white"
        android:layout_gravity="center"
        android:layout_marginTop="100dp"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="30dp"
        android:layout_marginLeft="16dp"
        android:layout_marginRight="16dp"
        android:layout_gravity="bottom"
        android:orientation="horizontal" >

        <SeekBar
            android:id="@+id/seekBar"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:max="100"
            android:progress="20"
            android:thumb="@drawable/seek_bar_thumb"
            android:progressDrawable="@drawable/seek_bar_progress"/>

    </LinearLayout>

</FrameLayout>

activity_main.xml

 

 

 

 

 

MainActivity.java

package com.jwsoft.javaproject;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.widget.SeekBar;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private TextView tvProgress;
    private TextView tvClick;
    private SeekBar seekBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        tvProgress = findViewById(R.id.tvProgress);
        tvClick = findViewById(R.id.tvClick);
        seekBar = findViewById(R.id.seekBar);

        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                tvClick.setText("Start");
            }

            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                tvProgress.setText(Integer.toString(progress));
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                tvClick.setText("Stop");
            }
        });

    }

}

실행 결과