Android 列表视图´;s项目按钮单击
在Android上使用Android 列表视图´;s项目按钮单击,android,listview,android-listview,listadapter,Android,Listview,Android Listview,Listadapter,在Android上使用Lisview。列表视图的每个项目都有一个按钮,我想在单击每个按钮时打开活动 我的代码是这样的,它可以工作,但我认为有更好的方法来做到这一点 public class Resul extends Fragment{ ImageView vi; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, B
Lisview
。列表视图
的每个项目都有一个按钮
,我想在单击每个按钮时打开活动
我的代码是这样的,它可以工作,但我认为有更好的方法来做到这一点
public class Resul extends Fragment{
ImageView vi;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v= inflater.inflate(R.layout.resul, container, false);
listview = (ListView) v.findViewById(R.id.lista_resultados_liga);
new DownloadJSON().execute();
listview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
estado = ((TextView) view.findViewById(R.id.estado))
.getText().toString();
jor = ((TextView) view.findViewById(R.id.jor))
.getText().toString();
vi = ((ImageView) view.findViewById(R.id.imageView1));
vi.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent in = new Intent(getActivity(),
Videos.class);
in.putExtra("id_video", resumen_id);
startActivity(in);
}
});
}
}
});
return v;
}
// DownloadJSON AsyncTask
private class DownloadJSON extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
//code
}
@Override
protected Void doInBackground(Void... params) {
//code
}
@Override
protected void onPostExecute(Void args) {
// Locate the listview in listview_main.xml
listview = (ListView) getActivity().findViewById(R.id.mylist);
// Pass the results into ListViewAdapter.java
adapter = new LazyAdapterResul(getActivity(), arraylist);
// Set the adapter to the ListView
listview.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
}
}
}
公共类结果扩展片段{
ImageView vi;
@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v=充气机。充气(R.layout.result,容器,假);
listview=(listview)v.findViewById(R.id.lista_resultados_liga);
新建下载JSON().execute();
setOnItemClickListener(新的OnItemClickListener(){
public void onItemClick(AdapterView父视图、视图、整型位置、,
长id){
estado=((TextView)view.findViewById(R.id.estado))
.getText().toString();
jor=((TextView)view.findViewById(R.id.jor))
.getText().toString();
vi=((ImageView)view.findViewById(R.id.imageView1));
vi.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
意向输入=新意向(getActivity(),
视频(课堂);
in.putExtra(“id\u视频”,resumen\u id);
星触觉(in);
}
});
}
}
});
返回v;
}
//下载JSON异步任务
私有类下载JSON扩展异步任务{
@凌驾
受保护的void onPreExecute(){
//代码
}
@凌驾
受保护的Void doInBackground(Void…参数){
//代码
}
@凌驾
受保护的void onPostExecute(void args){
//在listview_main.xml中找到listview
listview=(listview)getActivity().findViewById(R.id.mylist);
//将结果传递到ListViewAdapter.java中
adapter=newlazyadapterresul(getActivity(),arraylist);
//将适配器设置为ListView
setAdapter(适配器);
//关闭progressdialog
mProgressDialog.disclose();
}
}
}
我的适配器代码,我希望在单击图像活动打开时:
public class LazyAdapterResul extends BaseAdapter {
// Declare Variables
Context context;
LayoutInflater inflater;
ArrayList<HashMap<String, String>> data;
ImageLoader imageLoader;
HashMap<String, String> resultp = new HashMap<String, String>();
public LazyAdapterResultadosLiga(Context context,
ArrayList<HashMap<String, String>> arraylist) {
this.context = context;
data = arraylist;
imageLoader = new ImageLoader(context);
}
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
public interface MyItemClickListener {
void onItemClick(View view, int position);
}
private MyItemClickListener mItemClickListener;
public void setMyItemClickListener(MyItemClickListener listener) {
this.mItemClickListener = listener;
}
public View getView(final int position, View convertView, ViewGroup parent) {
// Declare Variables
TextView equipo_local, equipo_visitante, estado_video;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = inflater.inflate(R.layout.list_row, parent, false);
// Get the position
resultp = data.get(position);
// Locate the TextViews in listview_item.xml
jor= (TextView) itemView.findViewById(R.id.jornada);
estado= (TextView) itemView.findViewById(R.id.estado);
vi = (ImageView) itemView.findViewById(R.id.imageView1);
estado.setText(resultp.get(Resul.TAG_ESTADO));
jor.setText(resultp.get(Resul.TAG_JOR));
vi.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (mItemClickListener != null) {
mItemClickListener.onItemClick(view, position);
}
}
});
return itemView;
}
}
公共类LazyAdapterResul扩展BaseAdapter{
//声明变量
语境;
充气机;
阵列列表数据;
图像加载器;
HashMap resultp=新的HashMap();
公共LazyAdapterResultadosLiga(上下文,
ArrayList(ArrayList){
this.context=上下文;
数据=数组列表;
imageLoader=新的imageLoader(上下文);
}
@凌驾
public int getCount(){
返回data.size();
}
@凌驾
公共对象getItem(int位置){
返回null;
}
@凌驾
公共长getItemId(int位置){
返回0;
}
公共接口MyItemClickListener{
void onItemClick(视图,int位置);
}
私有MyItemClickListener mItemClickListener;
公共无效设置MyItemClickListener(MyItemClickListener listener){
this.mItemClickListener=侦听器;
}
公共视图getView(最终整数位置、视图转换视图、视图组父视图){
//声明变量
TextView设备本地、设备访问、estado视频;
充气器=(充气器)上下文
.getSystemService(上下文布局\充气机\服务);
视图项视图=充气机。充气(R.layout.list\u行,父项,false);
//获得职位
resultp=data.get(位置);
//在listview_item.xml中找到文本视图
jor=(TextView)itemView.findViewById(R.id.jornada);
estado=(TextView)itemView.findViewById(R.id.estado);
vi=(ImageView)itemView.findViewById(R.id.imageView1);
setText(resultp.get(resl.TAG_estado));
jor.setText(resultp.get(resl.TAG_jor));
vi.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
if(mItemClickListener!=null){
mItemClickListener.onItemClick(视图、位置);
}
}
});
返回项目视图;
}
}
使用适配器中的接口进行尝试,如下所示:
public class ListViewAdapter{
public interface MyItemClickListener {
void onItemClick(View view, int position);
}
private MyItemClickListener mItemClickListener;
public void setMyItemClickListener(MyItemClickListener listener) {
this.mItemClickListener = listener;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Find your image view and add clicklistener
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view, int position) {
if (mItemClickListener != null) {
mItemClickListener.onItemClick(view, position);
}
}
});
return convertView;
}
}
// Pass the results into ListViewAdapter.java
adapter = new LazyAdapterResultadosLiga(getActivity(), arraylist);
// add click listener
adapter.setMyItemClickListener(new MyItemClickListener(){
@Override
public void onItemClick(View view, int position) {
Intent in = new Intent(getActivity(), MyOtherActivity.class);
startActivity(in);
}
});
// Set the adapter to the ListView
listview.setAdapter(adapter);
现在,您可以在活动中设置clicklistener,如下所示:
public class ListViewAdapter{
public interface MyItemClickListener {
void onItemClick(View view, int position);
}
private MyItemClickListener mItemClickListener;
public void setMyItemClickListener(MyItemClickListener listener) {
this.mItemClickListener = listener;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Find your image view and add clicklistener
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view, int position) {
if (mItemClickListener != null) {
mItemClickListener.onItemClick(view, position);
}
}
});
return convertView;
}
}
// Pass the results into ListViewAdapter.java
adapter = new LazyAdapterResultadosLiga(getActivity(), arraylist);
// add click listener
adapter.setMyItemClickListener(new MyItemClickListener(){
@Override
public void onItemClick(View view, int position) {
Intent in = new Intent(getActivity(), MyOtherActivity.class);
startActivity(in);
}
});
// Set the adapter to the ListView
listview.setAdapter(adapter);
在列表视图适配器上编写onclick代码。但是我可以从列表视图适配器打开活动吗?怎么用?Intent in=新的Intent(getActivity(),MyOtherActivity.class);星触觉(in)@Elena use Intent in=new Intent(getContext(),MyOtherActivity.class);星触觉(in);您最好创建一个自定义ListView并为它创建一个单独的自定义适配器类是的,使用自定义适配器进行其他类型的实现工作,但是如果我想将.putExtra(“estado”,estado)中的“estado”这样的“estado”传递给这个新活动;如何从列表项中获取它?非常感谢你这件很酷的事。你在我的McClick方法中占有一席之地。您可以使用它进行操作,也可以使用该方法传递的视图(项)查找一些视图。它回答了你的问题吗?那么请把它标上,然后