LayoutInflater 的inflate(int resource, ViewGroup root, boolean attachToRoot)方法研究

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原创最新推荐文章于 2026-06-17 16:37:34 发布 1.3k 阅读 AI 写同款· GEO 优化 ›

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情况一： root =null, attachToRoot = false;

View temp = createViewFromTag(root, name, attrs);

// Inflate all children under temp
rInflate(parser, temp, attrs, true);

return temp;

情况二：root != null, attachToRoot = false;

View temp = createViewFromTag(root, name, attrs);

ViewGroup.LayoutParams params = root.generateLayoutParams(attrs);
temp.setLayoutParams(params);

// Inflate all children under temp
rInflate(parser, temp, attrs, true);

return temp;

情况三：root != null, attachToRoot = true;

View temp = createViewFromTag(root, name, attrs);

ViewGroup.LayoutParams params = root.generateLayoutParams(attrs);
temp.setLayoutParams(params);

// Inflate all children under temp
rInflate(parser, temp, attrs, true);

root.addView(temp, params);

return root;

总结：

root为空时，返回temp。

root 不为空时， attachToRoot = true 。返回root；

attachToRoot = false。设置temp layoutParams 。返回temp。