Android中ViewPager+TabLayout+RecyclerView+点击事件的传递

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Android中ViewPager+TabLayout+RecyclerView+点击事件的传递

这是一套通用的组合，大多数时候都在使用。在这里主要看点击事件的传递，如何将Fragment中RecyclerView的点击事件传递到Activity中去实现其逻辑代码

Activity代码：

public class DownLoadedActivity extends AppCompatActivity implements DownLoadedFragment.onRecyclerItemClick {    @BindView(R.id.down_image_view)    ImageView mDownImageView;    @BindView(R.id.down_tab_layout)    TabLayout mDownTabLayout;    @BindView(R.id.down_view_pager)    ViewPager mDownViewPager;    @BindView(R.id.down_delete_iamge)    ImageView mDownDeleteIamge;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_down);        ButterKnife.bind(this);        initView();    }    private void initView() {        List<DownLoadedBaseFragment> fragments = new ArrayList<>();        fragments.add(new DownLoadedFragment());        fragments.add(new DownLoadedFragment());        DownloadedAdapter adapter = new DownloadedAdapter(getSupportFragmentManager(), fragments);        mDownViewPager.setAdapter(adapter);        mDownTabLayout.setupWithViewPager(mDownViewPager);    }    @Override    public void onRecyclerItemClick(int message) {        Toast.makeText(this, String.valueOf(message), Toast.LENGTH_SHORT).show();    }    @OnClick({R.id.down_image_view, R.id.down_delete_iamge})    public void onClick(View view) {        switch (view.getId()) {            case R.id.down_image_view:                break;            case R.id.down_delete_iamge:                break;        }    }}

DownloadedAdapter代码：

public class DownloadedAdapter extends FragmentPagerAdapter {    private List<DownLoadedBaseFragment> mFragments;    public DownloadedAdapter(FragmentManager fm, List<DownLoadedBaseFragment> fragments) {        super(fm);        mFragments = fragments;    }    @Override    public Fragment getItem(int position) {        return mFragments.get(position);    }    @Override    public int getCount() {        int ret = 0;        if(mFragments != null){            ret = mFragments.size();        }        return ret;    }    @Override    public CharSequence getPageTitle(int position) {        return mFragments.get(position).getFragmentTitle();    }}

DownLoadedBaseFragment 代码

public abstract class DownLoadedBaseFragment extends Fragment {    public DownLoadedBaseFragment(){    }    public abstract String getFragmentTitle();}

DownLoadedFragment代码

public class DownLoadedFragment extends DownLoadedBaseFragment {    private onRecyclerItemClick mListener;    @BindView(R.id.down_recycler_view)    RecyclerView mDownRecyclerView;    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.fragment_downloaded, null);        ButterKnife.bind(this,view);        initView();        return view;    }    private void initView() {        DownloadedRecycylerAdapter adapter = new DownloadedRecycylerAdapter(getActivity());        adapter.setOnRecyclerItemClick(new DownloadedRecycylerAdapter.onRecyclerItemClick() {            @Override            public void onItemClick(View view, int position) {                mListener.onRecyclerItemClick(position);                Log.d("Test", "onItemClick: " + position);            }        });        mDownRecyclerView.setAdapter(adapter);        LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);        mDownRecyclerView.setLayoutManager(layoutManager);    }    @Override    public String getFragmentTitle() {        return "Play";    }    public interface onRecyclerItemClick{        public void onRecyclerItemClick(int message);    }    public void onAttach(Activity activity){        super.onAttach(activity);        try {            mListener = (DownLoadedFragment.onRecyclerItemClick) activity;        } catch (ClassCastException e) {            throw new ClassCastException(activity.toString()                    + "must implement OnGridViewSelectedListener");        }    }}

RecyclerView适配器DownloadedRecycylerAdapter代码：

public class DownloadedRecycylerAdapter extends RecyclerView.Adapter<DownloadedRecycylerAdapter.MyViewHolder>{    private Context mContext;    private onRecyclerItemClick mOnRecyclerItemClick;    public DownloadedRecycylerAdapter(Context context) {        mContext = context;    }    @Override    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(mContext).inflate(R.layout.down_loaded_recycler_view_item, parent, false);        ButterKnife.bind(view);        return new MyViewHolder(view);    }    @Override    public void onBindViewHolder(MyViewHolder holder, int position) {        if (mOnRecyclerItemClick != null){            if(!holder.itemView.hasOnClickListeners()){                holder.itemView.setOnClickListener(new View.OnClickListener() {                    @Override                    public void onClick(View v) {                        int pos = holder.getPosition();                        mOnRecyclerItemClick.onItemClick(v,pos);                    }                });            }        }    }    @Override    public int getItemCount() {        return 12;    }    public static class MyViewHolder extends RecyclerView.ViewHolder{        public MyViewHolder(View itemView) {            super(itemView);        }    }    public interface onRecyclerItemClick {        void onItemClick(View view, int position);    }    public void setOnRecyclerItemClick(onRecyclerItemClick mOnRecyclerItemClick) {        this.mOnRecyclerItemClick = mOnRecyclerItemClick;    }}

Activity的布局文件activity_down.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:orientation="vertical"    tools:context="com.home.quhong.quhong.TV.DownLoadedActivity">    <LinearLayout        android:orientation="horizontal"        android:layout_width="match_parent"        android:layout_height="50dp">        <ImageView            android:id="@+id/down_image_view"            android:layout_weight="1"            android:src="@drawable/back"            android:layout_gravity="center"            android:layout_width="wrap_content"            android:layout_height="25dp"/>        <TextView            android:text="DownLoads"            android:textSize="20sp"            android:layout_weight="6"            android:layout_gravity="center"            android:layout_width="wrap_content"            android:layout_height="wrap_content"/>        <ImageView            android:id="@+id/down_delete_iamge"            android:src="@drawable/delete"            android:layout_weight="1"            android:layout_gravity="center"            android:layout_width="wrap_content"            android:layout_height="wrap_content"/>    </LinearLayout>    <android.support.design.widget.TabLayout        android:id="@+id/down_tab_layout"        android:layout_width="match_parent"        app:tabIndicatorColor="#080707"        android:layout_height="@dimen/tab_layout_default_height"/>    <android.support.v4.view.ViewPager        android:id="@+id/down_view_pager"        android:layout_width="match_parent"        android:layout_height="match_parent"/></LinearLayout>

Fragment的布局文件fragment_downloaded.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"             xmlns:tools="http://schemas.android.com/tools"             android:layout_width="match_parent"             android:layout_height="match_parent"              android:orientation="vertical"             tools:context="com.home.quhong.quhong.TV.fragments.DownLoadedFragment">    <!-- TODO: Update blank fragment layout -->    <android.support.v7.widget.RecyclerView        android:id="@+id/down_recycler_view"        android:layout_width="match_parent"        android:layout_height="match_parent"/></LinearLayout>

RecyclerView中的down_loaded_recycler_view_item.xml布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:orientation="horizontal"              android:layout_width="match_parent"              android:layout_height="wrap_content">        <ImageView            android:id="@+id/down_loaded_cover"            android:src="@drawable/one6"            android:layout_width="wrap_content"            android:layout_height="wrap_content"/>    <LinearLayout        android:orientation="vertical"        android:layout_width="match_parent"        android:layout_height="match_parent">        <TextView            android:id="@+id/down_loaded_tv_title"            android:textSize="25sp"            android:text="Sing_Part2"            android:layout_weight="4"            android:layout_width="match_parent"            android:layout_height="wrap_content"/>        <TextView            android:id="@+id/down_loaded_tv_size"            android:text="Unknown Size Wating"            android:layout_weight="1"            android:layout_width="match_parent"            android:layout_height="wrap_content"/>        <ProgressBar            android:id="@+id/down_loaded_pb"            android:max="100"            android:layout_weight="1"            style="@style/Base.Widget.AppCompat.ProgressBar.Horizontal"            android:layout_width="match_parent"            android:layout_height="15dp"/>    </LinearLayout></LinearLayout>

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