如何修复“预期找到的数组类型 java.util.arraylist”？
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How to fix "array type expected found java.util.arraylist"?
提问by Alex
Given the function as below, AndroidStudio gives an error in the labeled line:
给定如下函数，AndroidStudio 在标记行中给出错误：
array type expected found java.util.arraylist
I also tried to use getinstead of a direct referencing, but then Android Studio is telling me something that setItemscannot be resolved. The code is here:
我也尝试使用get而不是直接引用，但是 Android Studio 告诉我一些setItems无法解决的问题。代码在这里：
protected void multiSelect(final ArrayList items) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Selection")
.setItems(items, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
Log.i("Select", "Selected entry: " + items[item]); // error here
}
});
builder.create();
}
采纳答案by Mohammed Aouf Zouag
Change
改变
Log.i("Select", "Selected entry: " + items[item]);
to :
到 ：
Log.i("Select", "Selected entry: " + items.get(item));
and change
和改变
protected void multiSelect(final ArrayList items)
to
到
protected void multiSelect(final ArrayList<String> items)
UPDATE:
更新：
the setItemsmethod of the DialogBuilderexpects an array, not an arrayList.
的setItems方法DialogBuilder需要一个array，而不是一个arrayList。
