本文实例为大家分享了RecyclerView实现水波纹点击效果的具体代码，供大家参考，具体内容如下
效果图
item.xml
这里就是主要设置background为我们后面写的一个selector
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<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:background="@drawable/recycler_item_selector" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/textView" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:textSize="40sp" android:text="aaaa"/></LinearLayout> |
drawable-v21/recycler_item_selector.xml (v21版本以上)
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<?xml version="1.0" encoding="utf-8"?><ripple xmlns:android="http://schemas.android.com/apk/res/android" android:color="@color/colorPrimary"> <item android:drawable="@color/write"/></ripple> |
drawable/recycler_item_selector.xml (v21版本以下的没有水波纹效果)
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<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@color/colorPrimary" android:state_pressed="true"/> <item android:drawable="@color/colorPrimary" android:state_focused="true"/> <item android:drawable="@color/write"/></selector> |
接下来是MyAdapter
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public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> { private OnRvItemClick mOnRvItemClick; private Context mContext; String[] strings; public MyAdapter(Context ctx, String[] strings, OnRvItemClick onRvItemClick) { mContext = ctx; this.mOnRvItemClick = onRvItemClick; this.strings = strings; } @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from(mContext).inflate(R.layout.item, parent, false); return new ViewHolder(view); } @Override public void onBindViewHolder(ViewHolder holder, int position) { holder.setData(position); } @Override public int getItemCount() { return 20; } public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { @BindView(R.id.textView) TextView textView; public ViewHolder(View itemView) { super(itemView); ButterKnife.bind(this,itemView); itemView.setOnClickListener(this); } public void setData(int position) { textView.setText("position" + position); } @Override public void onClick(View view) { if (mOnRvItemClick != null) mOnRvItemClick.onItemClick(view, getAdapterPosition()); } } /** * item点击接口 */ public interface OnRvItemClick { void onItemClick(View v, int position); }} |
MainActivity
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public class MainActivity extends AppCompatActivity { @BindView(R.id.RecyclerView) RecyclerView mRecyclerView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); MyAdapter myAdapter = new MyAdapter(this, null, new MyAdapter.OnRvItemClick() { @Override public void onItemClick(View v, int position) { Toast.makeText(getApplicationContext(), "click" + position, Toast.LENGTH_SHORT) .show(); } }); mRecyclerView.setLayoutManager(new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false)); mRecyclerView.setAdapter(myAdapter); }} |
github ：RecyclerView水波纹效果
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/REIGE/article/details/68957994
