ボタンをimageButtonに変更,
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app/src/main/java/org/ntlab/irisclient/DrawingActivity.java |
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app/src/main/java/org/ntlab/irisclient/DrawingCanvas.java |
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app/src/main/res/drawable/eraser.png 0 → 100644 |
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app/src/main/res/drawable/pen.png 0 → 100644 |
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app/src/main/res/layout/activity_drawing.xml |
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