java - 我无法在 Android 的 Baseadapter 中使用 viewgroup

Question

我正在尝试在 BaseAdapter 中使用 Viewgroup。这是我的代码

private ViewGroup createAnimLayout() {
        ViewGroup rootView = (ViewGroup) this.getWindow().getDecorView();
        LinearLayout animLayout = new LinearLayout(con);
        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.MATCH_PARENT);

但是我在 this.getWindow() 中遇到错误，例如“无法解析方法 getWindow()”。如何在 Baseadpater 中使用它。但它在 Activity 中起作用。

Answer 1

像这样在适配器中使用...

create Constructor of your Adapter and global variable of activity ....

private Activity ref;

public MyAdapter(Activity ref){
this.ref=ref;
}

并像这样使用......

private ViewGroup createAnimLayout() {
        ViewGroup rootView = (ViewGroup) ref.getWindow().getDecorView();
        LinearLayout animLayout = new LinearLayout(con);
        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.MATCH_PARENT);

注意:- 使用context代替this ....