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修复在有延时操作的情况下setLetters方法设置后的文字无法在竖直方向上居中的问题 #11

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修复在有延时操作的情况下setLetters方法设置后的文字无法在竖直方向上居中的问题 #11

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13 changes: 6 additions & 7 deletions quicksidebar/src/main/java/com/bigkoo/quicksidebar/QuickSideBarView.java
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,8 @@ public class QuickSideBarView extends View {
private int mHeight;
private float mItemHeight;
private float mItemStartY;
//计算位置
private Rect mRect = new Rect();

public QuickSideBarView(Context context) {
this(context, null);
Expand Down Expand Up @@ -69,6 +71,7 @@ private void init(Context context, AttributeSet attrs) {

protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
mItemStartY = (mHeight - mLetters.size()*mItemHeight)/2;
for (int i = 0; i < mLetters.size(); i++) {
mPaint.setColor(mTextColor);

Expand All @@ -81,12 +84,9 @@ protected void onDraw(Canvas canvas) {
mPaint.setTextSize(mTextSizeChoose);
}


//计算位置
Rect rect = new Rect();
mPaint.getTextBounds(mLetters.get(i), 0, mLetters.get(i).length(), rect);
float xPos = (int) ((mWidth - rect.width()) * 0.5);
float yPos = mItemHeight * i + (int) ((mItemHeight - rect.height()) * 0.5) + mItemStartY;
mPaint.getTextBounds(mLetters.get(i), 0, mLetters.get(i).length(), mRect);
float xPos = (int) ((mWidth - mRect.width()) * 0.5);
float yPos = mItemHeight * i + (int) ((mItemHeight - mRect.height()) * 0.5) + mItemStartY;


canvas.drawText(mLetters.get(i), xPos, yPos, mPaint);
Expand All @@ -100,7 +100,6 @@ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
mHeight = getMeasuredHeight();
mWidth = getMeasuredWidth();
mItemStartY = (mHeight - mLetters.size()*mItemHeight)/2;
}

@Override
Expand Down