ProgressBar 이미지 커스터마이징하기

1. layout/main.xml의 progress bar의 android:progressDrawable 속성을 설정한다.

 

<ProgressBar

android:progressDrawable="@drawable/new_drawable"

...

</ProgressBar>

 

2. res/drawable/new_drawable.xml 파일을 생성한다.

각 스타일을 설정한다.

<?xml version="1.0" encoding="utf-8"?>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+android:id/background" android:drawable="@drawable/backgroundProgress" />
    <item android:id="@+android:id/secondaryProgress" android:drawable="@drawable/secondaryProgress" />
    <item android:id="@+android:id/progress" android:drawable="@drawable/progress" />
</layer-list>

3. res/drawable 디렉토리 밑에 다음의 파일을 생성한다.

 

backgroundProgress.png

secondaryProgress.png

progress.png

 

png파일을 생성하지 않고 drawable로 작성하려면

2b. res/drawable/new_drawable.xml 파일을 다음과 같이 설정한다.

<?xml version="1.0" encoding="utf-8"?>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    
    <item android:id="@android:id/background">
        <shape>
            <corners android:radius="0dip" />
            <gradient
                    android:startColor="#ff9d9e9d"
                    android:centerColor="#ff5a5d5a"
                    android:centerY="0.75"
                    android:endColor="#ff747674"
                    android:angle="270"
            />
        </shape>
    </item>
    
    <item android:id="@android:id/secondaryProgress">
        <clip>
            <shape>
                <corners android:radius="0dip" />
                <gradient
                        android:startColor="#80ffd300"
                        android:centerColor="#80ffb600"
                        android:centerY="0.75"
                        android:endColor="#a0ffcb00"
                        android:angle="270"
                />
            </shape>
        </clip>
    </item>
    
    <item android:id="@android:id/progress">
        <clip>
            <shape>
                <corners android:radius="0dip" />
                <gradient
                        android:startColor="#ff0000"
                        android:centerColor="#00ff00"
                        android:centerY="0.75"
                        android:endColor="#0000ff"
                        android:angle="0"
                />
                <stroke android:width="3dp" color="#000000"/> 
                <padding android:left="10dp" android:top="10dp"         
      android:right="10dp" android:bottom="10dp" /> 
            </shape>     
        </clip>       
    </item>    
</layer-list>

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