[챕터 2-6-2] 버튼 커스터마이징

결과화면

 

버튼 클릭 시

 

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프로젝트명 : MyView

 

 

 

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이름 : MyButton

슈퍼클래스 : androidx.appcompat.widget.AppCompatButton

 

 

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package org.minokuma.myview;

import android.content.Context;
import android.util.AttributeSet;

import androidx.appcompat.widget.AppCompatButton;

public class MyButton extends AppCompatButton {
    public MyButton(Context context) {
        super(context);
    }

    public MyButton(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
}

 

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demens.xml 생성

 

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dimens.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <dimen name="text_size">30sp</dimen>
</resources>

 

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MyButton.java

package org.minokuma.myview;

import android.content.Context;
import android.graphics.Color;
import android.util.AttributeSet;

import androidx.appcompat.widget.AppCompatButton;

public class MyButton extends AppCompatButton {
    public MyButton(Context context) {
        super(context);
        init(context);
    }

    public MyButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }

    public void init(Context context){
        setBackgroundColor(Color.CYAN);
        setTextColor(Color.BLACK);

        float textSize = getResources().getDimension(R.dimen.text_size);
        setTextSize(textSize);
    }
}

 

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MyButton.java

package org.minokuma.myview;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;

import androidx.appcompat.widget.AppCompatButton;

public class MyButton extends AppCompatButton {
    public MyButton(Context context) {
        super(context);
        init(context);
    }

    public MyButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }

    public void init(Context context){
        setBackgroundColor(Color.CYAN);
        setTextColor(Color.BLACK);

        float textSize = getResources().getDimension(R.dimen.text_size);
        setTextSize(textSize);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        Log.d("MyButton", "onDraw()");
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        Log.d("MyButton", "onTouchEvent()");

        int action = event.getAction();
        switch (action) {
            case MotionEvent.ACTION_DOWN:
                setBackgroundColor(Color.BLUE);
                setTextColor(Color.RED);
                break;
            case MotionEvent.ACTION_OUTSIDE:
            case MotionEvent.ACTION_CANCEL:
            case MotionEvent.ACTION_UP:
                setBackgroundColor(Color.CYAN);
                setTextColor(Color.BLACK);
                break;
        }

        invalidate();

        return true;
    }
}

 

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demens.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity">

    <org.minokuma.myview.MyButton
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="확인"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>