每当 Recyclerview onclick 完成时,我需要完成一个 Activity 并重新打开另一个 Activity。我已经成功地在 Recyclerview 上实现了 onclick。但是我无法在我的适配器中重新创建另一个 Activity 。
我该如何解决这个问题?
public class ThemeAdapter extends RecyclerView.Adapter<ThemeAdapter.MyVH> {
private final LayoutInflater inflater;
private List<Theme> ThemeList;
public ThemeAdapter(Context context, List<Theme> ThemeList){
inflater = LayoutInflater.from(context);
this.ThemeList = ThemeList;
}
@Override
public MyVH onCreateViewHolder(ViewGroup parent, int viewType) {
View view = inflater.inflate(R.layout.theme_card, parent, false);
MyVH holder = new MyVH(view);
return holder;
}
@Override
public void onBindViewHolder(MyVH holder, int position) {
Theme current = ThemeList.get(position);
holder.name.setText(current.Name);
holder.mCardView.setCardBackgroundColor(Color.parseColor(current.Color));
}
@Override
public int getItemCount() {
return ThemeList.size();
}
class MyVH extends RecyclerView.ViewHolder implements View.OnClickListener {
me.arulnadhan.robototextview.widget.RobotoTextView name;
CardView mCardView;
Context context;
public MyVH(View itemView) {
super(itemView);
context = itemView.getContext();
itemView.setOnClickListener(this);
name= (me.arulnadhan.robototextview.widget.RobotoTextView) itemView.findViewById(R.id.Theme);
mCardView = (CardView)itemView.findViewById(R.id.ThemeCard);
}
@Override
public void onClick(View view) {
switch (getAdapterPosition()){
case 1:
Utility.setTheme(context, 1);
ThemeActivity.recreateActivity();
}
public void recreateActivity() {
finish();
final Intent intent = IntentCompat.makeMainActivity(new ComponentName(this, MainActivity.class));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | IntentCompat.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
}
}
}
}
最佳答案
您可以在构造函数中传递对 Activity 的引用,如下所示:
(...)
private final LayoutInflater inflater;
private List<Theme> ThemeList;
private final Activity mActivity;
public ThemeAdapter(Context context, Activity mActivity, List<Theme> ThemeList){
inflater = LayoutInflater.from(context);
this.ThemeList = ThemeList;
this.mActivity = mActivity;
}
(...)
然后,在创建适配器时在您的 Activity 中执行如下操作:
ThemeAdapter adapter = new ThemeAdapter(getContext(), this, mThemeList);
然后您可以通过调用 mActivity.someMethod()
在您的适配器中使用 Activity 方法。
免责声明:未经测试(我从未使用过 RecyclerView),但这在其他任何地方都有效。
关于android - 如何在 RecyclerView Adapter 中使用 Activity 方法?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34465325/