안드로이드 스튜디오 event 처리 4 (seekbar)

seekbar 처리

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity"
    android:layout_margin="10dp">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <TextView
            android:id="@+id/text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20dp"
            android:text="R(128)"/>

        <SeekBar
            android:id="@+id/seekBar_r"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:progress="128"
            android:layout_gravity="center"
            android:max="255" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:id="@+id/button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="20dp"
            android:text="-"
            android:onClick="minus"/>

        <Button
            android:id="@+id/button2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="20dp"
            android:text="+"
            android:onClick="plus"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <TextView
            android:id="@+id/text2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20dp"
            android:text="G(128)"/>

        <SeekBar
            android:id="@+id/seekBar_g"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:progress="128"
            android:layout_gravity="center"
            android:max="255"/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:id="@+id/button3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="20dp"
            android:text="-"
            android:onClick="minus"/>

        <Button
            android:id="@+id/button4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="20dp"
            android:text="+"
            android:onClick="plus"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <TextView
            android:id="@+id/text3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="20dp"
            android:text="B(128)"/>

        <SeekBar
            android:id="@+id/seekBar_b"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:progress="128"
            android:layout_gravity="center"
            android:max="255"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <Button
            android:id="@+id/button5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="20dp"
            android:text="-"
            android:onClick="minus"/>

        <Button
            android:id="@+id/button6"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:textSize="20dp"
            android:text="+"
            android:onClick="plus"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <EditText
            android:id="@+id/edit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="6"
            android:hint="입력하세요"
            />

        <Button
            android:id="@+id/submit"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="확인" />
    </LinearLayout>


    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:textSize="50dp"
        android:gravity="center_horizontal|center_vertical"
        android:text="TextView" />

</LinearLayout>

package com.example.seekbar;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.SeekBar;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    SeekBar seek_r,seek_g,seek_b;
    TextView textView;
    TextView text_r,text_g,text_b;
    EditText editText;
    Button submit;

    int red,green,blue;


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

        textView = findViewById(R.id.textView);
        text_r = findViewById(R.id.text);
        text_g = findViewById(R.id.text2);
        text_b = findViewById(R.id.text3);

        seek_r = findViewById(R.id.seekBar_r);
        seek_g = findViewById(R.id.seekBar_g);
        seek_b = findViewById(R.id.seekBar_b);

        editText = findViewById(R.id.edit);
        submit = findViewById( R.id.submit);

        submit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                textView.setText(editText.getText());
            }
        });

        seek_r.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                text_r.setText(String.format("R(%03d)",progress));
                red = progress;
                textView.setTextColor(Color.rgb(red,green,blue));
            } // 드래그 하는 중

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            } //누르기 시작함함
            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }// 드래그 멈춤
        });

        seek_g.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                text_g.setText(String.format("G(%03d)",progress));
                green =progress;
                textView.setTextColor(Color.rgb(red,green,blue));
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });

        seek_b.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                text_b.setText(String.format("B(%03d)",progress));
                blue = progress;
                textView.setTextColor(Color.rgb(red,green,blue));
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });
    }

    public void minus(View view) {
        switch (view.getId())
        {
            case R.id.button:
                if (seek_r.getProgress()>10)
                    seek_r.setProgress(seek_r.getProgress()-10);
                else
                    seek_r.setProgress(0);
                break;
            case R.id.button3:
                if (seek_g.getProgress()>10)
                    seek_g.setProgress(seek_g.getProgress()-10);
                else
                    seek_g.setProgress(0);
                break;
            case R.id.button5:
                if (seek_b.getProgress()>10)
                    seek_b.setProgress(seek_b.getProgress()-10);
                else
                    seek_b.setProgress(0);
                break;
        }
    }

    public void plus(View view) {
        switch (view.getId())
        {
            case R.id.button2:
                if (seek_r.getProgress()>245)
                    seek_r.setProgress(255);
                else
                    seek_r.setProgress(seek_r.getProgress()+10);
                break;
            case R.id.button4:
                if (seek_g.getProgress()>245)
                    seek_g.setProgress(255);
                else
                seek_g.setProgress(seek_g.getProgress()+10);
                break;
            case R.id.button6:
                if (seek_b.getProgress()>245)
                    seek_b.setProgress(255);
                else
                    seek_b.setProgress(seek_b.getProgress()+10);
                break;
        }
    }
}