安卓自定义ViewGroup(加上了内外边距)

@Override

protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {//这个方法测量出当前自定义View所需要的宽高

super.onMeasure(widthMeasureSpec, heightMeasureSpec);

int widthMode = (widthMeasureSpec);

int heightMode = (heightMeasureSpec);

int widthSize = (widthMeasureSpec);

int heightSize = (heightMeasureSpec);

(TAG, "widthSize=" + widthSize);

(TAG, "heightSize=" + heightSize);

int width = 0;

int height = 0;

int childCount = getChildCount();

for (int i = 0; i < childCount; i++) {

View child = getChildAt(i);

measureChild(child, widthMeasureSpec, heightMeasureSpec);//这里非常重要千万别搞错

MarginLayoutParams lp = (MarginLayoutParams) ();

int measuredWidth = () + + ;//子View的宽需要加上左右边距

int measuredHeight = () + + ;//子View的高需要加上下边距

(TAG, "measuredWidth=" + measuredWidth);

(TAG, "measuredHeight=" + measuredHeight);

width = (width, measuredWidth);

height += measuredHeight;

}

width += getPaddingLeft() + getPaddingRight();//这里需要加上自己的左右内边距

height += getPaddingTop() + getPaddingBottom();//这里需要加上自己的上下内边距

(TAG, "width=" + width);

(TAG, "height=" + height);

setMeasuredDimension(widthMode == ? widthSize : width, heightMode == ? heightSize : height);

}