@SuppressWarnings("NullableProblems")
@Override
protected void onDraw(Canvas canvas) {
// Draw Title Text
if (mAttributes.isShowTitle()
&& mTitlePaint != null
&& mCurTitleProperty != null
&& mCurTitleProperty.mAlpha != 0) {
CharSequence buf = getHint();
if (buf != null) {
mTitlePaint.setTextSize(mCurTitleProperty.mTextSize);
int color = getCurrentTitleTextColor();
int alpha = GeniusUi.modulateAlpha(Color.alpha(color), mCurTitleProperty.mAlpha);
mTitlePaint.setColor(color);
mTitlePaint.setAlpha(alpha);
canvas.drawText(
buf,
0,
buf.length(),
mCurTitleProperty.mPaddingLeft,
mCurTitleProperty.mPaddingTop + mCurTitleProperty.mTextSize,
mTitlePaint);
}
}
super.onDraw(canvas);
}
/**
* Set the draw paint alpha by modulateAlpha
*
* @param paint Paint
* @param alpha Alpha
* @return PrevAlpha
*/
protected int setPaintAlpha(Paint paint, int alpha) {
final int prevAlpha = paint.getAlpha();
paint.setAlpha(GeniusUi.modulateAlpha(prevAlpha, alpha));
return prevAlpha;
}