Android中带分割线的GridView-MyGraidView
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public class MyGraidView extends GridView{public MyGraidView(Context context) {
super(context);
}public MyGraidView(Context context, AttributeSet attrs) {
super(context, attrs);
}public MyGraidView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}@Override
protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
View localView1 = getChildAt(0);
int column = getWidth() / localView1.getWidth();
//列数
int childCount = getChildCount();
Paint localPaint;
localPaint = new Paint();
localPaint.setStyle(Paint.Style.STROKE);
localPaint.setColor(getContext().getResources().getColor(R.color.line));
//这个就是设置分割线的颜色
for (int i = 0;
i < childCount;
i++) {
View cellView = getChildAt(i);
if ((i + 1) % column == 0) {//每一行最后一个
canvas.drawLine(cellView.getLeft(), cellView.getBottom() , cellView.getRight(), cellView.getBottom(), localPaint);
} else if ((i + 1) > (childCount - (childCount % column))) {//最后一行的item
canvas.drawLine(cellView.getRight(), cellView.getTop() , cellView.getRight(), cellView.getBottom() , localPaint);
} else {
canvas.drawLine(cellView.getRight(), cellView.getTop(), cellView.getRight(), cellView.getBottom() - 20, localPaint);
canvas.drawLine(cellView.getLeft(), cellView.getBottom() , cellView.getRight(), cellView.getBottom() , localPaint);
}
}
}
}
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