推荐一个超级好用的adapter,可以实现ListView的复杂布局。该项目在GitHub上已经具有五百多颗星了。 项目的地址是:cwac-merge
这个MergeAdapter可以通过addView和addAdapter的方式加入多个view或者adapter,实现一些比较复杂的布局。大家可以到github上,下载下来使用。
下面带大家走一波
这是我简单实现的一个效果图,当然大家可以通过addView或者addAdapter实现你想要的布局。
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.lwj.merge.ListMergeActivity">
<ListView
android:id="@+id/meger_lsit"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:divider="@null"
android:dividerHeight="0dp" />
</android.support.constraint.ConstraintLayout>
布局就一个ListView就可以了
public class ListMergeActivity extends AppCompatActivity {
private ListView mListView;
private List<String> mList01 = new ArrayList<>();
private List<String> mList02 = new ArrayList<>();
private MergeAdapter mMergeAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_meger);
getData();
mListView = (ListView)this.findViewById(R.id.meger_lsit);
mMergeAdapter = new MergeAdapter();
//addAdapter
ListAdapter adapter = new ListAdapter(ListMergeActivity.this,mList01);
mMergeAdapter.addAdapter(adapter);
//addView
ImageView mImageView = new ImageView(ListMergeActivity.this);
mImageView.setImageResource(R.drawable.timg);
mMergeAdapter.addView(mImageView);
//addAdapter
ListAdapter adapter02 = new ListAdapter(ListMergeActivity.this,mList02);
mMergeAdapter.addAdapter(adapter02);
//listview设置adapter
mListView.setAdapter(mMergeAdapter);
}
public void getData() {
for (int i = 0; i < 5; i++) {
String data ="mergeadapter01...." + i;
mList01.add(data);
}
for (int i = 5; i < 10; i++) {
String data ="mergeadapter02...." + i;
mList02.add(data);
}
}
}
这里按顺序依次addAdapter、addView、addAdapter,然后布局在ListView上依次显示出来了。
public class ListAdapter extends BaseAdapter {
private List<String> datas;
private Context mContext;
public ListAdapter(Context mContext,List<String> datas) {
this.datas = datas;
this.mContext = mContext;
}
@Override
public int getCount() {
return datas == null ? 0 : datas.size();
}
@Override
public Object getItem(int i) {
return datas == null ? null : datas.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int position, View convertView, ViewGroup viewGroup) {
if (convertView == null && !(convertView instanceof ItemLayout)){
convertView = new ItemLayout(mContext);
}
((ItemLayout)convertView).setData(datas.get(position));
return convertView;
}
public static class ItemLayout extends LinearLayout{
public String tagStr;
private Button mButton;
public ItemLayout(Context context) {
super(context);
initView(context);
}
private void initView(Context context) {
int MP = LinearLayout.LayoutParams.MATCH_PARENT;
int WC = LinearLayout.LayoutParams.WRAP_CONTENT;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(MP, WC);
LinearLayout layout = (LinearLayout) LayoutInflater.from(context).inflate(R.layout.list_item_layout,null);
addView(layout,params);
mButton = (Button)layout.findViewById(R.id.text);
}
public void setData(String str){
if (str == null || str == tagStr){
return;
}else{
tagStr = str;
mButton.setText(str);
}
}
}
}
这是我add进去的adapter。
大家如果需要的话不妨下载下来,我觉得是一个非常棒的adapter。