Java Android实现不对称GridView
您好,我对AsymetricGridView的实现有一些问题,它仍然会崩溃,但我不知道有什么问题,如何使用我的适配器正确地实现它存在指向AsymetricGridView库的错误链接。多谢各位Java Android实现不对称GridView,java,android,xml,view,grid,Java,Android,Xml,View,Grid,您好,我对AsymetricGridView的实现有一些问题,它仍然会崩溃,但我不知道有什么问题,如何使用我的适配器正确地实现它存在指向AsymetricGridView库的错误链接。多谢各位 Adapter must be an instance of AsymmetricGridViewAdapter at com.felipecsl.asymmetri
Adapter must be an instance of AsymmetricGridViewAdapter
at com.felipecsl.asymmetricgridview.library.widget.AsymmetricGridView.setAdapter(AsymmetricGridView.java:71)
at com.gabriel.movies.fragment.MainFragment.render(MainFragment.java:140)
at com.gabriel.movies.fragment.MainFragment$MyTask.onPostExecute(MainFragment.java:228)
at com.gabriel.movies.fragment.MainFragment$MyTask.onPostExecute(MainFragment.java:161)
我的代码
<com.felipecsl.asymmetricgridview.library.widget.AsymmetricGridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/gridView1"
android:layout_width="match_parent"
android:layout_height="match_parent" />
AsymmetricGridView gridview;
List<ItemCategory> list;
AdapterCategory adapter;
gridview = (AsymmetricGridView) mRootView.findViewById(R.id.gridView1);
gridview.setRequestedColumnWidth(Utils.dpToPx(getActivity(), 120));
list = new ArrayList<ItemCategory>();
adapter = new AdapterCategory(getActivity(), R.layout.fragment_worcipe_main_item, list);
gridview.setAdapter(adapter);
不对称网格视图;
名单;
适配器类别适配器;
gridview=(AsymmetricGridView)mRootView.findViewById(R.id.gridView1);
setRequestedColumnWidth(Utils.dpToPx(getActivity(),120));
列表=新的ArrayList();
adapter=newadapterCategory(getActivity(),R.layout.fragment\u worcipe\u main\u项,列表);
setAdapter(适配器);
和适配器代码
public class AdapterCategory extends ArrayAdapter<ItemCategory> {
ItemCategory object;
private Activity activity;
private List<ItemCategory> item;
private int row;
public AdapterCategory(Activity act, int resource, List<ItemCategory> arrayList) {
super(act, resource, arrayList);
this.activity = act;
this.row = resource;
this.item = arrayList;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
ViewHolder holder;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(row, null);
holder = new ViewHolder();
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
if ((item == null) || ((position + 1) > item.size()))
return view;
object = item.get(position);
holder.title = (TextView) view.findViewById(R.id.category_title);
holder.image = (ImageView) view.findViewById(R.id.category_image);
holder.title.setText(object.getCategoryName());
Picasso.with(getContext()).load(RecipeConfig.SERVER_URL + "/upload/" +
object.getCategoryImageurl()).placeholder(R.drawable.ic_thumbnail).into(holder.image);
return view;
}
public class ViewHolder {
public TextView title;
public ImageView image;
}
}
公共类AdapterCategory扩展了ArrayAdapter{
项目类别对象;
私人活动;
私人清单项目;
私人int row;
公共适配器类别(活动法案、int资源、列表数组列表){
超级(act、资源、arrayList);
这个活动=行动;
this.row=资源;
this.item=arrayList;
}
@凌驾
公共视图getView(最终整数位置、视图转换视图、视图组父视图){
视图=转换视图;
视窗座;
如果(视图==null){
LayoutInflater充气器=(LayoutInflater)activity.getSystemService(Context.LAYOUT\u充气器\u服务);
视图=充气机。充气(行,空);
holder=新的ViewHolder();
视图.设置标签(支架);
}否则{
holder=(ViewHolder)view.getTag();
}
if((item==null)| |((position+1)>item.size())
返回视图;
object=item.get(位置);
holder.title=(TextView)view.findViewById(R.id.category\u title);
holder.image=(ImageView)view.findViewById(R.id.category\u image);
holder.title.setText(object.getCategoryName());
Picasso.with(getContext()).load(RecipeConfig.SERVER_URL+“/upload/”+
object.getCategoryImageurl())。占位符(R.drawable.ic_缩略图)。插入(holder.image);
返回视图;
}
公共类视图持有者{
公共文本视图标题;
公众形象;
}
}
首先,您需要一个类来扩展表单AsymmetricItem。这应该是这样的:
public class DemoItem implements AsymmetricItem {
private int columnSpan;
private int rowSpan;
private int position;
private String text;
public DemoItem() {
this(1, 1, 0,"");
}
public DemoItem(int columnSpan, int rowSpan, int position,String text) {
this.columnSpan = columnSpan;
this.rowSpan = rowSpan;
this.position = position;
this.text=text;
}
public DemoItem(Parcel in) {
readFromParcel(in);
}
@Override public int getColumnSpan() {
return columnSpan;
}
@Override public int getRowSpan() {
return rowSpan;
}
public String getText(){
return text;
}
public int getPosition() {
return position;
}
@Override public String toString() {
return String.format("%s: %sx%s", position, rowSpan, columnSpan);
}
@Override public int describeContents() {
return 0;
}
private void readFromParcel(Parcel in) {
columnSpan = in.readInt();
rowSpan = in.readInt();
position = in.readInt();
}
@Override public void writeToParcel(@NonNull Parcel dest, int flags) {
dest.writeInt(columnSpan);
dest.writeInt(rowSpan);
dest.writeInt(position);
}
/* Parcelable interface implementation */
public static final Parcelable.Creator<DemoItem> CREATOR = new Parcelable.Creator<DemoItem>() {
@Override public DemoItem createFromParcel(@NonNull Parcel in) {
return new DemoItem(in);
}
@Override @NonNull
public DemoItem[] newArray(int size) {
return new DemoItem[size];
}
};
}
private ListAdapter adapter;
private AsymmetricGridView listView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.dashboard_gridview, container, false);
listView = (AsymmetricGridView) rootView.findViewById(R.id.listView);
listView.setAllowReordering(true);
final List<DemoItem> items = new ArrayList<>();
items.add(new DemoItem(2,2,0,"Example Text 1"));
items.add(new DemoItem(1,1,0,"Example Text 2"));
items.add(new DemoItem(1,1,0,"Example Text 3"));
items.add(new DemoItem(2,2,0,"Example Text 4"));
items.add(new DemoItem(1,1,0,"Example Text 5"));
items.add(new DemoItem(1,1,0,"Example Text 6"));
items.add(new DemoItem(1,1,0,"Example Text 7"));
items.add(new DemoItem(2,2,0,"Example Text 8"));
items.add(new DemoItem(1,1,0,"Example Text 9"));
items.add(new DemoItem(1,1,0,"Example Text 10"));
adapter = new GridAdapter(getContext(), items);
listView.setAdapter(new AsymmetricGridViewAdapter(getContext(), listView, adapter));
return rootView;
}
}
public类DemoItem实现AsymmetricItem{
私营企业;
私有int rowSpan;
私人职位;
私有字符串文本;
公共项目(){
这(1,1,0,“”);
}
公共DemoItem(int-columnSpan、int-rowSpan、int-position、String-text){
this.columnSpan=columnSpan;
this.rowSpan=rowSpan;
这个位置=位置;
this.text=文本;
}
公共物品(包裹中){
从包裹中读取;
}
@重写公共int getColumnSpan(){
返回列跨度;
}
@重写公共int getRowSpan(){
返回行跨度;
}
公共字符串getText(){
返回文本;
}
public int getPosition(){
返回位置;
}
@重写公共字符串toString(){
返回字符串。格式(“%s:%sx%s”,位置,行跨度,列跨度);
}
@重写公共int描述符内容(){
返回0;
}
private void readFromParcel(地块位于中){
columnSpan=in.readInt();
rowSpan=in.readInt();
位置=in.readInt();
}
@覆盖公共无效writeToParcel(@NonNull Parcel dest,int标志){
目的写入(第span列);
目的写入(行范围);
目的写入(位置);
}
/*可包裹接口的实现*/
public static final Parcelable.Creator=新建Parcelable.Creator(){
@覆盖公共DemoItem createFromParcel(@NonNull Parcel in){
返回新的DemoItem(在中);
}
@覆盖@NonNull
公共DemoItem[]新数组(整数大小){
返回新的DemoItem[大小];
}
};
}
然后,您需要创建适配器,它应该如下所示(您应该循环使用视图除外):
公共类GridAdapter扩展了ArrayAdapter{
私人最终裁员;
公共GridAdapter(上下文、列表项){
超级(上下文,0,项);
layoutInflater=layoutInflater.from(上下文);
}
公共GridAdapter(上下文){
超级(上下文,0);
layoutInflater=layoutInflater.from(上下文);
}
@凌驾
公共视图getView(int位置、视图转换视图、视图组父视图){
DemoItem=getItem(位置);
视图v=布局更平坦。充气(R.layout.adapter_项,父项,false);
TextView TextView=(TextView)v.findViewById(R.id.TextView);
setText(item.getText());
返回v;
}
@重写公共int getViewTypeCount(){
返回2;
}
@重写公共int getItemViewType(int位置){
返回位置%2==0?1:0;
}
公共项目(列出新项目){
addAll(新项目);
notifyDataSetChanged();
}
公共无效设置项(列出更多项){
清除();
附加项目(更多项目);
}
}
最后,当您拥有所有这些时,您可以实现活动/片段中的所有内容,如下所示:
public class DemoItem implements AsymmetricItem {
private int columnSpan;
private int rowSpan;
private int position;
private String text;
public DemoItem() {
this(1, 1, 0,"");
}
public DemoItem(int columnSpan, int rowSpan, int position,String text) {
this.columnSpan = columnSpan;
this.rowSpan = rowSpan;
this.position = position;
this.text=text;
}
public DemoItem(Parcel in) {
readFromParcel(in);
}
@Override public int getColumnSpan() {
return columnSpan;
}
@Override public int getRowSpan() {
return rowSpan;
}
public String getText(){
return text;
}
public int getPosition() {
return position;
}
@Override public String toString() {
return String.format("%s: %sx%s", position, rowSpan, columnSpan);
}
@Override public int describeContents() {
return 0;
}
private void readFromParcel(Parcel in) {
columnSpan = in.readInt();
rowSpan = in.readInt();
position = in.readInt();
}
@Override public void writeToParcel(@NonNull Parcel dest, int flags) {
dest.writeInt(columnSpan);
dest.writeInt(rowSpan);
dest.writeInt(position);
}
/* Parcelable interface implementation */
public static final Parcelable.Creator<DemoItem> CREATOR = new Parcelable.Creator<DemoItem>() {
@Override public DemoItem createFromParcel(@NonNull Parcel in) {
return new DemoItem(in);
}
@Override @NonNull
public DemoItem[] newArray(int size) {
return new DemoItem[size];
}
};
}
private ListAdapter adapter;
private AsymmetricGridView listView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.dashboard_gridview, container, false);
listView = (AsymmetricGridView) rootView.findViewById(R.id.listView);
listView.setAllowReordering(true);
final List<DemoItem> items = new ArrayList<>();
items.add(new DemoItem(2,2,0,"Example Text 1"));
items.add(new DemoItem(1,1,0,"Example Text 2"));
items.add(new DemoItem(1,1,0,"Example Text 3"));
items.add(new DemoItem(2,2,0,"Example Text 4"));
items.add(new DemoItem(1,1,0,"Example Text 5"));
items.add(new DemoItem(1,1,0,"Example Text 6"));
items.add(new DemoItem(1,1,0,"Example Text 7"));
items.add(new DemoItem(2,2,0,"Example Text 8"));
items.add(new DemoItem(1,1,0,"Example Text 9"));
items.add(new DemoItem(1,1,0,"Example Text 10"));
adapter = new GridAdapter(getContext(), items);
listView.setAdapter(new AsymmetricGridViewAdapter(getContext(), listView, adapter));
return rootView;
}
}
私有列表适配器;
私有不对称GridView listView;
@凌驾
创建视图上的公共视图(布局、充气机、视图组容器、,
Bundle savedInstanceState){
视图根视图=充气机。充气(R.layout.dashboard\u网格视图,容器,false);
listView=(AsymmetricGridView)rootView.findViewById(R.id.listView);
setAllowerOrdering(true);
最终列表项=新的ArrayList();
添加(新的DemoItem(2,2,0,“示例文本1”);
添加(新的DemoItem(1,1,0,“示例文本2”);
添加(新的DemoItem(1,1,0,“示例文本3”);
添加(新的DemoItem(2,2,0,“示例文本4”);
添加(新的DemoItem(1,1,0,“示例文本5”);
添加(新的DemoItem(1,1,0,“示例文本6”);
添加(新的DemoItem(1,1,0,“示例文本7”);
项目。添加(新)