自RecyclerAdapter和startActivityForResult [英] Custom RecyclerAdapter and startActivityForResult

问题描述

我有一个包含片段 A RecyclerView 它使用一个自定义的 RecyclerAdapter 。我有一个 onClickListener 我的自定义里面 RecyclerAdapter - 被点击的位置时，我想它来启动 startActivityForResult 。到目前为止，这部作品在这样的时候被点击，并根据需要启动该活动的。然而，当我preSS后退按钮转到片段包含的 RecyclerView 的onActivityResult 永远不会被调用。我有一个背景下自定义 RecyclerAdapter 通过。这东西是可能的吗？抑或是活动/片段开始 startActivityForResult 是拦截它的人？如果不是我最终会处理片段中的onClick用手势检测器或类似的东西，但在此之前，我想这给出一个公正的裂缝！注：我已经包括的onActivityResult 在 MainActivity 里面有片段容器，以便在片段并收到的onActivityResult 如果 startActivityForResult 从片段启动。我的code：

RecyclerAdapter onClickListener：

  @覆盖
        公共无效的onClick（视图v）{            串titleId = titlesListDataArrayList.get（getLayoutPosition（））getTitle_id（）;            意向意图=新意图（背景下，CreateItemsActivity.class）;
            intent.putExtra（title_id的titleId）;
            （（活动）上下文）.startActivityForResult（意向，Constants.NEW_ITEMS_REQUEST_ code）;
        }
 

CreateItemsActivity.class - onBack pressed（）

  @覆盖
        公共无效onBack pressed（）{            意向意图=新的Intent（）;
            的setResult（Constants.NEW_ITEMS_REQUEST_ code，意向）;
            完（）;
        }
 

MyListsFragment.class（含RecyclerView）

  @覆盖
    公共无效的onActivityResult（INT申请code，INT结果code，意图数据）{
        super.onActivityResult（要求code，结果code，数据）;        Log.e（叫，OnActivity结果）;        //如果请求code从CreateItemsActivity匹配
        如果（要求code == Constants.NEW_ITEMS_REQUEST_ code）{            Log.e（REQUEST code，将String.valueOf（要求code））;            populateRecyclerView（）;
        }
    }
 

我也有这个在MainActivity：

  @覆盖
    保护无效的onActivityResult（INT申请code，INT结果code，意图数据）{
        super.onActivityResult（要求code，结果code，数据）;
        //包括允许片段接收的onActivityResult    }
 

解决方案

好了，万一别人在这里有这个问题是我的

解决方案。我说这个code到在MainActivity的onActivityResult（注意我有​​一个框架容器，是所有片段充气）：

  @覆盖
    保护无效的onActivityResult（INT申请code，INT结果code，意图数据）{
        super.onActivityResult（要求code，结果code，数据）;        //获取集装箱当前片段
        片段片段= getSupportFragmentManager（）findFragmentById（R.id.frameContainer）。
        fragment.onActivityResult（要求code，结果code，数据）;
    }
 

我相信这可以作为在MainActivity是顶部的层次和拦截的onActivityResult，所以基本上我只是点吧，我希望它被使用。

I have a Fragment that contains a RecyclerView which uses a custom RecyclerAdapter. I have an onClickListener inside my custom RecyclerAdapter - when a position is clicked I want it to start startActivityForResult. So far this works in as such as when it is clicked it starts the Activity as desired. However when I press the back button to go to the Fragment containing the RecyclerView onActivityResult is never called. I have passed in a context to the custom RecyclerAdapter. Is this something that is possible? Or does the Activity/Fragment initiating startActivityForResult be the one that intercepts it? If not I will end up handling the onClick in the Fragment with a gesture detector or something similar, but before that I wanted to give this a fair crack! Note: I have included onActivityResult in the MainActivity which has the Fragment container so the Fragment does receive onActivityResult if startActivityForResult is initiated from the Fragment. My code:

RecyclerAdapter onClickListener:

@Override
        public void onClick(View v) {

            String titleId = titlesListDataArrayList.get(getLayoutPosition()).getTitle_id();

            Intent intent = new Intent(context, CreateItemsActivity.class);
            intent.putExtra("TITLE_ID", titleId);
            ((Activity) context).startActivityForResult(intent, Constants.NEW_ITEMS_REQUEST_CODE);
        }

CreateItemsActivity.class - onBackPressed()

    @Override
        public void onBackPressed() {

            Intent intent = new Intent();
            setResult(Constants.NEW_ITEMS_REQUEST_CODE, intent);
            finish();
        }

MyListsFragment.class (contains RecyclerView)

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        Log.e("CALLED", "OnActivity Result");

        // if requestCode matches from CreateItemsActivity
        if (requestCode == Constants.NEW_ITEMS_REQUEST_CODE) {

            Log.e("REQUEST CODE", String.valueOf(requestCode));

            populateRecyclerView();
        }
    }

Also I have this in the MainActivity:

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        // included to allow fragment to receive onActivityResult

    }

解决方案

OK, so IF by any chance somebody else has this problem here is my

solution. I added this code into the MainActivity onActivityResult (note I have a frame container which is where all fragments are inflated):

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        // get current fragment in container
        Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.frameContainer);
        fragment.onActivityResult(requestCode, resultCode, data);
    }

I believe this works as the MainActivity is top in the hierarchy and intercepts the onActivityResult, so basically I just point it where I want it to be used.

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