android - 在 Activity 上下文之外调用 startActivity() 需要 FLAG_ACTIVITY_NEW_TASK

Question

我收到错误消息AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag。完整的堆栈跟踪：

main Process: com.kd.book, PID: 3487 android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? at android.app.ContextImpl.startActivity(ContextImpl.java:1238) at android.app.ContextImpl.startActivity(ContextImpl.java:1225) at com.kd.book.Adapter.MyComicAdapter$1.onClick(MyComicAdapter.java:63) at com.kd.book.Adapter.MyComicAdapter$MyViewHolder.onClick(MyComicAdapter.java:99)

我是 Android 开发新手，不知道如何解决。

我的代码：

public class MyComicAdapter extends RecyclerView.Adapter<MyComicAdapter.MyViewHolder> {
    Context context;
    List<Comic> comicList;
    LayoutInflater inflater;

    public MyComicAdapter(Context context, List<Comic> comicList) {
        this.context = context;
        this.comicList = comicList;
        inflater=LayoutInflater.from(context);
    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

        View itemView = inflater.inflate(R.layout.comic_item, viewGroup, false);
        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(@NonNull MyViewHolder myViewHolder, final int i) {

        Picasso.get().load(comicList.get(i).Image).into(myViewHolder.comic_image);
        myViewHolder.comic_name.setText(comicList.get(i).Name);

        //Event

        myViewHolder.setRecyclerItemClickListener(new IRecyclerItemClickListener(){

            @Override
            public void onClick(View view, int position) {
                //save the comic selected
                Common.comicSelected = comicList.get(position);
                Intent intent = new Intent(Intent.ACTION_VIEW);
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(new Intent(context,ChapterActivity.class));

            }
        });
    }

    @Override
    public int getItemCount() {
        return comicList.size();
    }

    public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        TextView comic_name;
        ImageView comic_image;

        IRecyclerItemClickListener recyclerItemClickListener;

        public void setRecyclerItemClickListener(IRecyclerItemClickListener recyclerItemClickListener) {
            this.recyclerItemClickListener = recyclerItemClickListener;
        }

        public MyViewHolder(@NonNull View itemView) {
            super(itemView);

            comic_image = itemView.findViewById(R.id.image_comic);
            comic_name = itemView.findViewById(R.id.comic_name);

            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {

            recyclerItemClickListener.onClick(view, getAdapterPosition());
        }
    }
}

有任何想法吗？

标签： androidandroid-intentruntime-error

Answer 1

试试这个方法，
1. 在你的适配器中创建一个接口并将位置传递给它（希望你知道如何制作和使用接口）。
2. 为您的活动类实现该接口。
3. 在它的 override 方法中，你会得到一个列表的位置。
4. 通过使用该位置，获取所需的数据并在其中调用意图。
完毕。