Android的布局与运行时另一个视图替换视图 [英] Android layout replacing a view with another view on run time

问题描述

我有一个XML布局文件主要有两个textviews A / B和C.观点 比我有其他两个XML布局文件选项1和选项2。 是否有可能通过Java为加载选项1或选项2的运行时间为C？如果是这样，我一定要使用什么功能？

I have a xml-layout file main with two textviews A/B and a view C. Than I have two other xml layout files option1 and option2. Is it possible to load either option1 or option2 in run time via Java into C? If so, what function do I have to use?

推荐答案

您可以取代在任何时候任何看法。

You could replace any view at any time.

    int optionId = someExpression ? R.layout.option1 : R.layout.option2;

    View C = findViewById(R.id.C);
    ViewGroup parent = (ViewGroup) C.getParent();
    int index = parent.indexOfChild(C);
    parent.removeView(C);
    C = getLayoutInflater().inflate(optionId, parent, false);
    parent.addView(C, index);

如果您不希望替换已有的视图，但在初始化时选项1 /选项2之间进行选择，那么你可以这样做更容易：设置机器人：ID为父母的布局，然后：

If you don't want to replace already existing View, but choose between option1/option2 at initialization time, then you could do this easier: set android:id for parent layout and then:

    ViewGroup parent = (ViewGroup) findViewById(R.id.parent);
    View C = getLayoutInflater().inflate(optionId, parent, false);
    parent.addView(C, index);

您必须设置索引为根据的看法结构应有的价值。你也可以使用一个ViewStub：增加你的C视图ViewStub然后：

You will have to set "index" to proper value depending on views structure. You could also use a ViewStub: add your C view as ViewStub and then:

    ViewStub C = (ViewStub) findViewById(R.id.C);
    C.setLayoutResource(optionId);
    C.inflate();

这样，你将不必担心上面的指数值，如果你要调整你的XML布局。

That way you won't have to worry about above "index" value if you will want to restructure your XML layout.

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