| 代码如下 | 复制代码 |
//activity的xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="baway.com.cj.myrecyclerview2.MainActivity"> <android.support.v4.widget.SwipeRefreshLayout android:id="@+id/swipeRefreshLayout" android:layout_width="match_parent" android:layout_above="@+id/progress" android:layout_height="match_parent"> <android.support.v7.widget.RecyclerView android:id="@+id/recyclerView" android:layout_width="match_parent" android:layout_height="match_parent">
<ProgressBar android:id="@+id/progress" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:visibility="gone" android:layout_alignParentBottom="true"/> item1的xml和item2的xml就一个背景颜色不同 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#f00000" tools:context="baway.com.cj.myrecyclerview2.MainActivity"> <TextView android:id="@+id/name" android:layout_width="match_parent" android:layout_height="50dp" android:textSize="20sp" android:gravity="center" android:textColor="#00ff00"/> item2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#f000ff" tools:context="baway.com.cj.myrecyclerview2.MainActivity"> <TextView android:id="@+id/name" android:layout_width="match_parent" android:layout_height="50dp" android:textSize="20sp" android:gravity="center" android:textColor="#00ff00"/> //activity,有上啦下拉，添加分割线， packagebaway.com.cj.myrecyclerview2; importandroid.graphics.Color; importandroid.os.Handler; importandroid.support.v4.widget.SwipeRefreshLayout; importandroid.support.v7.app.AppCompatActivity; importandroid.os.Bundle; importandroid.support.v7.widget.DefaultItemAnimator; importandroid.support.v7.widget.LinearLayoutManager; importandroid.support.v7.widget.RecyclerView; importandroid.util.Log; importandroid.view.View; importandroid.widget.ProgressBar; importandroid.widget.Toast; importjava.util.ArrayList; publicclassMainActivityextendsAppCompatActivity { privateRecyclerView recyclerView; privateMainAdapter mainAdapter; privateSwipeRefreshLayout swipeRefreshLayout; privateLinearLayoutManager linearLayoutManager; privateProgressBar progress; @Override protectedvoidonCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initData(); } privatevoidinitView() { recyclerView = (RecyclerView)findViewById(R.id.recyclerView); swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout); progress = (ProgressBar)findViewById(R.id.progress); linearLayoutManager =newLinearLayoutManager(this); recyclerView.setLayoutManager(linearLayoutManager); mainAdapter =newMainAdapter(this); mainAdapter.setOnClickListener(newMyItemOnClickListener() { @Override publicvoidonItemClick(View view,intposition) { Toast.makeText(MainActivity.this," "+position, Toast.LENGTH_SHORT).show(); } }); recyclerView.setAdapter(mainAdapter); recyclerView.addItemDecoration(newMyItemDecoration()); recyclerView.setItemAnimator(newDefaultItemAnimator()); swipeRefreshLayout.setColorSchemeColors(Color.RED,Color.GREEN,Color.BLUE); swipeRefreshLayout.setProgressViewOffset(true,0,200); swipeRefreshLayout.setOnRefreshListener(newSwipeRefreshLayout.OnRefreshListener() { @Override publicvoidonRefresh() { newHandler().postDelayed(newRunnable() { @Override publicvoidrun() { swipeRefreshLayout.setRefreshing(false); } },3000); } }); recyclerView.addOnScrollListener(newRecyclerView.OnScrollListener() { @Override publicvoidonScrolled(RecyclerView recyclerView,intdx,intdy) { super.onScrolled(recyclerView, dx, dy); intlastVisibleItemPosition = linearLayoutManager.findLastVisibleItemPosition(); intitemCount = linearLayoutManager.getItemCount(); if(lastVisibleItemPosition +1>= itemCount && dy >0) { progress.setVisibility(View.VISIBLE); newHandler().postDelayed(newRunnable() { @Override publicvoidrun() { progress.setVisibility(View.GONE); } },3000); } } @Override publicvoidonScrollStateChanged(RecyclerView recyclerView,intnewState) { super.onScrollStateChanged(recyclerView, newState); } }); } privatevoidinitData() { ArrayList for(inti =0; i<50; i++) { strings.add("name "+i); } mainAdapter.setData(strings); mainAdapter.notifyDataSetChanged(); } } //adpter有多条目展示 packagebaway.com.cj.myrecyclerview2; importandroid.content.Context; importandroid.support.v7.widget.RecyclerView; importandroid.view.LayoutInflater; importandroid.view.View; importandroid.view.ViewGroup; importandroid.widget.TextView; importjava.util.ArrayList; /** * Created by cj on 2017/1/12. */ publicclassMainAdapterextendsRecyclerView.Adapter { privateContext context; privateArrayList privateMyItemOnClickListener myItemOnClickListener; privatefinalintTYPE_0 =0; privatefinalintTYPE_1 =1; publicMainAdapter(Context context) { this.context = context; } @Override publicintgetItemViewType(intposition) { if(position %3==0) { returnTYPE_0; }else{ returnTYPE_1; } } publicvoidsetOnClickListener(MyItemOnClickListener onClickListener) { this.myItemOnClickListener = onClickListener; } @Override publicRecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent,intviewType) { if(viewType == TYPE_0) { View inflate = LayoutInflater.from(context).inflate(R.layout.item_main,null); returnnewMyViewHolder(inflate); }else{ View inflate = LayoutInflater.from(context).inflate(R.layout.item_main2,null); returnnewMyViewHolder2(inflate); } } @Override publicvoidonBindViewHolder(RecyclerView.ViewHolder holder,finalintposition) { if(getItemViewType(position) == TYPE_0) { MyViewHolder myViewHolder = (MyViewHolder)holder; myViewHolder.name.setText(datas.get(position)); myViewHolder.name.setOnClickListener(newView.OnClickListener() { @Override publicvoidonClick(View v) { myItemOnClickListener.onItemClick(v,position); } }); }else{ MyViewHolder2 myViewHolder = (MyViewHolder2)holder; myViewHolder.name.setText(datas.get(position)); myViewHolder.name.setOnClickListener(newView.OnClickListener() { @Override publicvoidonClick(View v) { myItemOnClickListener.onItemClick(v,position); } }); } } @Override publicintgetItemCount() { returndatas.size(); } publicvoidsetData(ArrayList if(data ==null) { return; } this.datas.addAll(data); } publicclassMyViewHolderextendsRecyclerView.ViewHolder{ publicTextView name; publicMyViewHolder(View itemView) { super(itemView); name = (TextView) itemView.findViewById(R.id.name); } } publicclassMyViewHolder2extendsRecyclerView.ViewHolder{ publicTextView name; publicMyViewHolder2(View itemView) { super(itemView); name = (TextView) itemView.findViewById(R.id.name); } } } //自定义分割线继承系统的 RecyclerView.ItemDecoration packagebaway.com.cj.myrecyclerview2; importandroid.graphics.Canvas; importandroid.graphics.Color; importandroid.graphics.Paint; importandroid.graphics.Rect; importandroid.support.v7.widget.RecyclerView; importandroid.util.Log; importandroid.view.View; /** * Created by cj on 2017/1/12. */ publicclassMyItemDecorationextendsRecyclerView.ItemDecoration { privatePaint paint; publicMyItemDecoration() { paint =newPaint(); paint.setColor(Color.BLUE); } @Override publicvoidonDraw(Canvas c, RecyclerView parent, RecyclerView.State state) { super.onDraw(c, parent, state); //c.drawCircle(300,300,300,paint); intchildCount = parent.getChildCount(); for(inti =0; i < childCount; i++) { View childAt = parent.getChildAt(i); c.drawRect(childAt.getLeft(),childAt.getBottom(),childAt.getWidth()+childAt.getLeft(),childAt.getBottom()+5,paint); } } @Override publicvoidonDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) { super.onDrawOver(c, parent, state); // int childCount = parent.getChildCount(); // for (int i = 0; i < childCount; i++) { // View childAt = parent.getChildAt(i); // c.drawRect(childAt.getLeft(),childAt.getTop(),childAt.getWidth()+childAt.getLeft(),childAt.getBottom()+5,paint); // } } @Override publicvoidgetItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) { super.getItemOffsets(outRect, view, parent, state); outRect.set(20,0,20,5); } } | |