正从字符串布局ID，将无法正常工作 [英] getting layout id from string, won't work

问题描述

通过每一个问题来看，不能让它的工作。

Looked through every question, can't get it working.

我想设置一个AppWidgets布局字符串的值（这样的布局可以通过只是改变了串切换到另一个）。

I wanna set an AppWidgets layout with the value of a string (So the layout can be switched to another one by just changing the string).

String NoteString = "R.layout.widget_blue".toString();

int resID = context.getResources().getIdentifier(NoteString, "layout", context.getPackageName());

RemoteViews views = new RemoteViews(context.getPackageName(), resID);

不知道为什么它不工作，只部件表示：问题加载部件。

don't know why it doesn't work, widget just says: "problem loading widget"..

这工作得很好：

RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_blue);

感谢

推荐答案

为了构建从字符串组件的资源ID，你必须通过单个部件到则getIdentifier（），不完全限定ID作为一个参数：

In order to construct a resource ID from string components, you must pass the individual components into getIdentifier(), not the fully qualified ID as a single parameter:

//Get the ID for R.layout.widget_blue
int resID = context.getResources().getIdentifier("widget_blue", "layout", context.getPackageName());

然后，只需更改第一个参数名称来获得不同的布局资源。

Then just change the first parameter name to get a different layout resource.

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