Android在adapter布局里跳转Activity页面，并获取Activity页面数据回调到在适配器的布局中

客官°小女子只卖身不卖艺 2022-12-10 04:51 256阅读 0赞

1.adapter里写一个接口，点击条目时，  
//点击item到Activity

public void chooseUser(CollectSonGoodsAddEntry data);

2.在activity页面中实现adapter接口的方法并赋值，

mCollectionSonAdapter = new CollectionSonAdapter(this, mEntryAddList, new CollectionSonAdapter.ICollectionSonListener() { 
                @Override
                public void chooseUser(CollectSonGoodsAddEntry data) { 
                    mChooseUserData = data;
                    //打开职员/列表页面
                    Intent intent = new Intent(CollectionPageActivity.this, PersonListDialogActivity.class);
                    intent.putExtra("isSelect", true);
                    // mContext.startActivity(intent);
                    startActivityForResult(intent, 111);
                }
            });
            mRecyCollectionData.setAdapter(mCollectionSonAdapter);
            mCollectionSonAdapter.notifyDataSetChanged();
        }
        //onActivityResult回调 PersonListDialogActivity的参数
     @Override
        protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { 
    
            super.onActivityResult(requestCode, resultCode, data);
    
            PersonInfo personInfo = (PersonInfo) data.getSerializableExtra("person_info");
    
            //对象添加回调的职员信息，添加到对象离，适配器获取对象的
            mChooseUserData.setConsumeUserName(personInfo.name);
            mChooseUserData.setConsumeUserId(personInfo.id);
    
            mCollectionSonAdapter.notifyDataSetChanged();

3.在adapter获取接口实现的参数`ICollectionSonListener.chooseUser(collectSonGoodsEntry);`

//适配器简要代码

public class CollectionSonAdapter extends RecyclerView.Adapter<CollectionSonAdapter.ViewHolder> implements Serializable { 
        Context mContext;
        List<CollectSonGoodsAddEntry> mCollectSonGoodsAddList;  //列表
        CollectionPageActivity activity;
        //获取当前日期
        private int year, month, day;
    
        public CollectionSonAdapter(Context context, List<CollectSonGoodsAddEntry> dataList, ICollectionSonListener listener) { 
            this.mContext = context;
            this.mCollectSonGoodsAddList = dataList;
            this.ICollectionSonListener = listener;
        }
    
        ICollectionSonListener ICollectionSonListener;
    
        public interface ICollectionSonListener { 
      
            //点击item到Activity
            public void chooseUser(CollectSonGoodsAddEntry data);
        }
    
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) { 
            if (mCollectSonGoodsAddList == null || mCollectSonGoodsAddList.size() < 0) { 
                return;
            }
            CollectSonGoodsAddEntry collectSonGoodsEntry = mCollectSonGoodsAddList.get(position);
            holder.tvSeq.setText(String.valueOf(position + 1));
            
            //设置领用人
            holder.tvPerson.setOnClickListener(new View.OnClickListener() { 
                @Override
                public void onClick(View v) { 
                    ICollectionSonListener.chooseUser(collectSonGoodsEntry);
                }
            });
             holder.tvPerson.setText(collectSonGoodsEntry.getConsumeUserName());
    }
    }

Activity简要参考代码

//点击新增领用
        @OnClick(R.id.btn_addCollection_collectionSonPage)
        void addCollectionDataView() { 
            mEntryAddList.add(new CollectSonGoodsAddEntry());
            mCollectionSonAdapter = new CollectionSonAdapter(this, mEntryAddList, new CollectionSonAdapter.ICollectionSonListener() { 
                @Override
                public void chooseUser(CollectSonGoodsAddEntry data) { 
                    mChooseUserData = data;
                    //打开职员/列表页面
                    Intent intent = new Intent(CollectionPageActivity.this, PersonListDialogActivity.class);
                    intent.putExtra("isSelect", true);
                    // mContext.startActivity(intent);
                    startActivityForResult(intent, 111);
                }
            });
            mRecyCollectionData.setAdapter(mCollectionSonAdapter);
            mCollectionSonAdapter.notifyDataSetChanged();
        }
        //onActivityResult回调 PersonListDialogActivity的参数
     @Override
        protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { 
    
            super.onActivityResult(requestCode, resultCode, data);
    
            PersonInfo personInfo = (PersonInfo) data.getSerializableExtra("person_info");
    
            //对象添加回调的职员信息，添加到对象离，适配器获取对象的
            mChooseUserData.setConsumeUserName(personInfo.name);
            mChooseUserData.setConsumeUserId(personInfo.id);
    
            mCollectionSonAdapter.notifyDataSetChanged();
    
        }