java ScrollView 内容更新
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ScrollView contents update
提问by FiniteRed
I have a programmatically generated ScrollViewwith a TextViewinside of it. I wish to update the text in the TextViewfrom time to time and some have implemented a handler function to update the TextViewGUI element. This seems to call/work correctly.
我有一个以编程方式生成ScrollView的TextView内部。我希望TextView不时更新文本，有些人已经实现了一个处理程序函数来更新TextViewGUI 元素。这似乎可以正常调用/工作。
However, currently the only way I have found to actuallyget the TextViewto show the appended information is to call:
不过，目前我发现的唯一方法实际上得到了TextView显示附加信息是调用：
consoleText.append("New text to add to TextView");
// then:
myScrollView.removeView(myTextView);
myScrollView.addView(myTextView);
This is not particularity optimal and was wondering how else I can refresh the contents of the ScrollViewto show my newly added information...
这不是特别优化，我想知道我还能如何刷新内容ScrollView以显示我新添加的信息......
Also:
还：
invalidate();
postvalidate();
Do not seem to do anything - the TextViewobject has the new text in it (looking in debug) it's just not drawing it to the screen unless I call the add/remove function.
似乎没有做任何事情 -TextView对象中有新文本（在调试中查看）它只是不将其绘制到屏幕上，除非我调用添加/删除函数。
Thanks for any information/help you can give
感谢您提供的任何信息/帮助
FR
阻燃剂
回答by Samuel
You should call invalidate()and requestLayout()on the TextView, and perhaps the ScrollView.
您应该在 TextView 和 ScrollView 上调用invalidate()和requestLayout()。
