dan.jpg
第三方 库 git 地址 https://github.com/CymChad/BaseRecyclerViewAdapterHelper
常用功能：
- 添加Item事件
- Item的点击事件
- Item的长按事件
- Item子控件的点击事件
- Item子控件的长按事件
- 添加列表加载动画
- 一行代码轻松切换5种默认动画。
- 添加头部、尾部
- 一行代码搞定，感觉又回到ListView时代。
- 自动加载
- 上拉加载无需监听滑动事件,可自定义加载布局，显示异常提示，自定义异常提示。同时支持下拉加载。
- 分组布局
- 随心定义分组头部。
- 多布局
- 简单配置、无需重写额外方法。
- 设置空布局
- 比Listview的setEmptyView还要好用。
- 添加拖拽、滑动删除
- 开启，监听即可，就是这么简单。
- 树形列表
- 比ExpandableListView还要强大，支持多级。
- 自定义ViewHolder
- 支持自定义ViewHolder，让开发者随心所欲。
- 扩展框架
- 组合第三方框架，轻松实现更多需求定制。
框架引入
先在 build.gradle
buildscript {
repositories {
google()
jcenter(
)
maven { url "https://jitpack.io" }
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.1'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
maven { url "https://jitpack.io" }
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
然后在 build.gradle(Module:app) 的 dependencies 添加:
dependencies {
compile 'com.github.CymChad:BaseRecyclerViewAdapterHelper:2.9.30'
}
多布局
RecyclerView 使用和数据添加
rv_list= (RecyclerView) findViewById(R.id.rv_list);
LinearLayoutManager linearLayoutManager=new LinearLayoutManager(this);
rv_list.setLayoutManager(linearLayoutManager);
List<ChatMultipleItem> list=new ArrayList<>();
for (int i=0;i<8;i++){
int itemType=i%2;
ChatMultipleItem chatMultipleItem=new ChatMultipleItem(itemType,"第"+i+"个");
list.add(chatMultipleItem);
}
ChatMainAdapter adapter=new ChatMainAdapter(this,list);
rv_list.setAdapter(adapter);
ChatMainAdapter 代码
public class ChatMainAdapter extends BaseMultiItemQuickAdapter<ChatMultipleItem,BaseViewHolder> {
private String imge1="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1517034699540&di=6a9afc9b394eafeec7dd4234dd42aca1&imgtype=0&src=http%3A%2F%2Fd.hiphotos.baidu.com%2Fimage%2Fpic%2Fitem%2Fa044ad345982b2b713b5ad7d3aadcbef76099b65.jpg";
private String imge2="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1517034295939&di=3ceafe0c6f289a68585dddea96bf1daf&imgtype=0&src=http%3A%2F%2Ff.hiphotos.baidu.com%2Fimage%2Fpic%2Fitem%2F503d269759ee3d6db032f61b48166d224e4ade6e.jpg";
public ChatMainAdapter(Context context,List<ChatMultipleItem> data) {
super(data);
// 添加类型
addItemType(ChatMultipleItem.CHATTYPETEXT, R.layout.chat_item_text_view);
addItemType(ChatMultipleItem.CHATTYPETEXTANDIMG,R.layout.chat_item_image_view);
}
// 图片地址
// https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1517034295939&di=3ceafe0c6f289a68585dddea96bf1daf&imgtype=0&src=http%3A%2F%2Ff.hiphotos.baidu.com%2Fimage%2Fpic%2Fitem%2F503d269759ee3d6db032f61b48166d224e4ade6e.jpg
@Override
protected void convert(BaseViewHolder helper, ChatMultipleItem item) {
if(helper.getItemViewType()==ChatMultipleItem.CHATTYPETEXT){
// 第一个类型
helper.setText(R.id.tv,item.getContent());
}else if(helper.getItemViewType()==ChatMultipleItem.CHATTYPETEXTANDIMG){
ImageView imageView=helper.getView(R.id.iv);
Log.i("position",helper.getLayoutPosition()%2+" "+helper.getLayoutPosition());
if(helper.getLayoutPosition()%2 ==0){
Glide.with(mContext).load(imge1).crossFade().into(imageView);
}else{
Glide.with(mContext).load(imge2).crossFade().into(imageView);
}
}
}
}
ChatMultipleItem 代码 一定要继承 MultiItemEntity
public class ChatMultipleItem implements MultiItemEntity {
public static int CHATTYPETEXT=0;
public static int CHATTYPETEXTANDIMG=1;
private int itemType;
private String content;
public ChatMultipleItem(int itemType,String content) {
this.itemType = itemType;
this.content=content;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
@Override
public int getItemType() {
return itemType;
}
}
布局文件
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
android:id="@+id/card_view"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_gravity="center"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:foreground="?android:attr/selectableItemBackground"
card_view:cardCornerRadius="4dp"
card_view:cardElevation="2dp"
card_view:cardUseCompatPadding="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/black"
android:textSize="18sp"
android:textStyle="bold"
/>
<TextView
android:id="@+id/tv1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textColor="@android:color/darker_gray"
android:textSize="14sp"
android:text="If you would hit the mark, you must aim a little above it. Every arrow that flies feels the attraction of earth. －Henry Wadsworth Longfellow."
/>
</LinearLayout>
</android.support.v7.widget.CardView>
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="90dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_gravity="center"
android:foreground="?android:attr/selectableItemBackground"
card_view:cardCornerRadius="4dp"
card_view:cardElevation="2dp"
card_view:cardUseCompatPadding="true">
<ImageView
android:id="@+id/iv"
android:layout_gravity="center"
android:layout_width="match_parent"
android:layout_height="90dp"
android:scaleType="fitXY"
/>
</android.support.v7.widget.CardView>
一个布局的adapter
public class ChatQuickAdapter extends BaseQuickAdapter<ChatMultipleItem,BaseViewHolder> {
private String imge1="https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1517034699540&di=6a9afc9b394eafeec7dd4234dd42aca1&imgtype=0&src=http%3A%2F%2Fd.hiphotos.baidu.com%2Fimage%2Fpic%2Fitem%2Fa044ad345982b2b713b5ad7d3aadcbef76099b65.jpg";
public ChatQuickAdapter(int layoutResId, @Nullable List<ChatMultipleItem> data) {
super(layoutResId, data);
}
@Override
protected void convert(BaseViewHolder helper, ChatMultipleItem item) {
helper.setText(R.id.tv,item.getContent());
ImageView imageView=helper.getView(R.id.chat_iv_bg);
Glide.with(mContext).load(imge1).into(imageView);
}
}
MultiItem.jpg
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