Android通过单击recyclerview将jsonObject传递给另一个活动
我正在用Android做一个应用程序 我正在使用改型从URL()获取包含口袋妖怪名称的JSON数据。名称和类型显示在recyclerView中,单击其他活动后打开并显示攻击、防御和移动 到目前为止,我已经能够打开一个新的活动,但不知道如何传递该对象。我想没有必要通过为每个活动重新编写两次相同的代码来重新加载json 这是我的班级:Android通过单击recyclerview将jsonObject传递给另一个活动,android,json,android-recyclerview,retrofit,pass-data,Android,Json,Android Recyclerview,Retrofit,Pass Data,我正在用Android做一个应用程序 我正在使用改型从URL()获取包含口袋妖怪名称的JSON数据。名称和类型显示在recyclerView中,单击其他活动后打开并显示攻击、防御和移动 到目前为止,我已经能够打开一个新的活动,但不知道如何传递该对象。我想没有必要通过为每个活动重新编写两次相同的代码来重新加载json 这是我的班级: public class Pokemon { private String name; private String type; priva
public class Pokemon {
private String name;
private String type;
private Integer attack;
private Integer defense;
private Integer evolveLevel;
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setType(String type) {
this.type = type;
}
public String getType() {
return type;
}
public Integer getattack() { return attack; }
public Integer getdefense() { return defense; }
public Integer getEvolveLevel() { return evolveLevel; }
}
我的数据管理员:
public class DataAdapter extends RecyclerView.Adapter<DataAdapter.ViewHolder> implements Filterable {
private ArrayList<Pokemon> mArrayList;
private ArrayList<Pokemon> mFilteredList;
public DataAdapter(ArrayList<Pokemon> arrayList) {
mArrayList = arrayList;
mFilteredList = arrayList;
}
@Override
public DataAdapter.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.card_row, viewGroup, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(DataAdapter.ViewHolder viewHolder, int i) {
viewHolder.tv_name.setText(mFilteredList.get(i).getName());
viewHolder.tv_version.setText(mFilteredList.get(i).getName());
viewHolder.tv_api_level.setText(mFilteredList.get(i).getType());
}
@Override
public int getItemCount() {
return mFilteredList.size();
}
@Override
public Filter getFilter() {
return new Filter() {
@Override
protected FilterResults performFiltering(CharSequence charSequence) {
String charString = charSequence.toString();
if (charString.isEmpty()) {
mFilteredList = mArrayList;
} else {
ArrayList<Pokemon> filteredList = new ArrayList<>();
for (Pokemon marraylist : mArrayList) {
if (marraylist.getName().toLowerCase().contains(charString) || marraylist.getType().toLowerCase().contains(charString)) {
filteredList.add(marraylist);
}
}
mFilteredList = filteredList;
}
FilterResults filterResults = new FilterResults();
filterResults.values = mFilteredList;
return filterResults;
}
@Override
protected void publishResults(CharSequence charSequence, FilterResults filterResults) {
mFilteredList = (ArrayList<Pokemon>) filterResults.values;
notifyDataSetChanged();
}
};
}
public class ViewHolder extends RecyclerView.ViewHolder{
private TextView tv_name,tv_version,tv_api_level;
public ViewHolder(View view) {
super(view);
tv_name = (TextView)view.findViewById(R.id.tv_name);
tv_version = (TextView)view.findViewById(R.id.tv_version);
tv_api_level = (TextView)view.findViewById(R.id.tv_api_level);
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(view.getContext(), Main2Activity.class);
intent.putExtra("attack", Pokemon);
view.getContext().startActivity(intent);
}
});
}
}
}
公共类DataAdapter扩展了RecyclerView。适配器实现了可过滤{
私人ArrayList结婚名单;
私人阵列列表mFilteredList;
公共数据适配器(ArrayList ArrayList){
mArrayList=arrayList;
mFilteredList=arrayList;
}
@凌驾
public DataAdapter.ViewHolder onCreateViewHolder(视图组视图组,int i){
View View=LayoutInflater.from(viewGroup.getContext()).flate(R.layout.card_行,viewGroup,false);
返回新的ViewHolder(视图);
}
@凌驾
public void onBindViewHolder(DataAdapter.ViewHolder-ViewHolder,int i){
viewHolder.tv_name.setText(mFilteredList.get(i).getName());
viewHolder.tv_version.setText(mFilteredList.get(i).getName());
viewHolder.tv_api_level.setText(mFilteredList.get(i.getType());
}
@凌驾
public int getItemCount(){
返回mFilteredList.size();
}
@凌驾
公共过滤器getFilter(){
返回新筛选器(){
@凌驾
受保护过滤器结果执行过滤(CharSequence CharSequence){
String charString=charSequence.toString();
if(charString.isEmpty()){
mFilteredList=结婚名单;
}否则{
ArrayList filteredList=新建ArrayList();
用于(口袋妖怪结婚名单:结婚名单){
if(marraylist.getName().toLowerCase().contains(charString)| | marraylist.getType().toLowerCase().contains(charString)){
filteredList.add(结婚名单);
}
}
mFilteredList=filteredList;
}
FilterResults FilterResults=新的FilterResults();
filterResults.values=mFilteredList;
返回过滤器结果;
}
@凌驾
受保护的无效发布结果(CharSequence CharSequence、FilterResults FilterResults){
mFilteredList=(ArrayList)filterResults.values;
notifyDataSetChanged();
}
};
}
公共类ViewHolder扩展了RecyclerView.ViewHolder{
私有文本视图tv_名称、tv_版本、tv_api_级别;
公共视图持有者(视图){
超级(视图);
tv_name=(TextView)view.findViewById(R.id.tv_name);
tv_version=(TextView)view.findViewById(R.id.tv_version);
tv_api_level=(TextView)view.findviewbyd(R.id.tv_api_level);
view.setOnClickListener(新的view.OnClickListener(){
@凌驾
公共void onClick(视图){
Intent Intent=新意图(view.getContext(),Main2Activity.class);
意图。putExtra(“攻击”,口袋妖怪);
view.getContext().startActivity(intent);
}
});
}
}
}
最后是我的主要活动:
public class MainActivity extends AppCompatActivity {
public static final String BASE_URL = "http://kerast.com";
private RecyclerView mRecyclerView;
private ArrayList<Pokemon> mArrayList;
private DataAdapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
initViews();
loadJSON();
}
private void initViews(){
mRecyclerView = (RecyclerView)findViewById(R.id.card_recycler_view);
mRecyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(layoutManager);
}
private void loadJSON(){
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
RequestInterface request = retrofit.create(RequestInterface.class);
Call<JSONResponse> call = request.getJSON();
call.enqueue(new Callback<JSONResponse>() {
@Override
public void onResponse(Call<JSONResponse> call, Response<JSONResponse> response) {
JSONResponse jsonResponse = response.body();
mArrayList = new ArrayList<>(Arrays.asList(jsonResponse.getPokemons()));
mAdapter = new DataAdapter(mArrayList);
mRecyclerView.setAdapter(mAdapter);
}
@Override
public void onFailure(Call<JSONResponse> call, Throwable t) {
Log.d("Error",t.getMessage());
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
MenuItem search = menu.findItem(R.id.search);
SearchView searchView = (SearchView) MenuItemCompat.getActionView(search);
search(searchView);
return true;
}
private void search(SearchView searchView) {
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
mAdapter.getFilter().filter(newText);
return true;
}
});
}
}
public类MainActivity扩展了AppCompatActivity{
公共静态最终字符串BASE_URL=”http://kerast.com";
私人回收视图mRecyclerView;
私人ArrayList结婚名单;
专用数据适配器;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar Toolbar=(Toolbar)findViewById(R.id.Toolbar);
设置支持操作栏(工具栏);
initViews();
loadJSON();
}
私有void initViews(){
mRecyclerView=(RecyclerView)findViewById(R.id.card\u recycler\u视图);
mRecyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager LayoutManager=新的LinearLayoutManager(此);
mRecyclerView.setLayoutManager(layoutManager);
}
私有void loadJSON(){
改装改装=新改装.Builder()
.baseUrl(基本URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
RequestInterface请求=reformation.create(RequestInterface.class);
Call Call=request.getJSON();
call.enqueue(新回调(){
@凌驾
公共void onResponse(调用、响应){
JSONResponse=response.body();
mArrayList=newarraylist(Arrays.asList(jsonResponse.getPokemons());
mAdapter=新数据适配器(mArrayList);
mRecyclerView.setAdapter(mAdapter);
}
@凌驾
失败时公共无效(调用调用,可丢弃的t){
Log.d(“Error”,t.getMessage());
}
});
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
getMenuInflater().充气(右菜单菜单菜单主菜单);
MenuItem search=menu.findItem(R.id.search);
SearchView SearchView=(SearchView)MenuItemCompat.getActionView(搜索);
搜索(searchView);
返回true;
}
专用无效搜索(SearchView SearchView){
searchView.setOnQueryTextListener(新的searchView.OnQueryTextListener(){
@凌驾
公共布尔值onQueryTextSubmit(字符串查询){
返回false;
}
@凌驾
公共布尔onQueryTextChange(字符串newText){
mAdapter.getFilter().filter(newText);
//send :
intent.putExtra("Pokemon", obj);
//retrieve :
getIntent().getSerializableExtra("MyClass");
//Sending data
intent.putExtra("String name", object);
//Receving end
Bundle bundle = getIntent().getExtras();
if (bundle != null) {
Pokemon pokemon = (Pokemon) bundle.getParcelable("String name")
}