我正在开发一个应用程序，并且具有以下文件：
MainActivity.java -填充列表视图
//...
mDBHelper = new DatabaseHelperArchitects(this);
File database = getApplicationContext().getDatabasePath(DatabaseHelperArchitects.DBNAME);
AZModelArchitectsList = mDBHelper.getListWord("");
word_adapter = new Architects_WordAdapter();
word_adapter.setData(AZModelArchitectsList);
rvWord.setAdapter(word_adapter);
//...
DatabaseHelperArchitects.java -用于打开数据库，查询数据并在模型列表中添加数据，升级数据库方法，关闭数据库方法等。
public List<AZModelArchitects> getListWord(String wordSearch) {
AZModelArchitects dictionaryModel = null;
List<AZModelArchitects> dictionaryModelList = new ArrayList<>();
openDatabase();
String[] args = {"%" + wordSearch + "%", "%" + wordSearch + "%"};
cursor = mDatabase.rawQuery("Select * From architects_az Where architect_name Like ? OR architect_period Like ?", args);
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
dictionaryModel = new AZModelArchitects(
cursor.getString(1),
cursor.getString(2),
cursor.getString(3),
cursor.getString(4),
cursor.getString(5)
);
dictionaryModelList.add(dictionaryModel);
cursor.moveToNext();
}
cursor.close();
closeDatabase();
return dictionaryModelList;
}
AZModelArchitects -模型
public class AZModelArchitects {
private String id;
private String architect_image;
private String architect_description;
private String architect_period;
private String architect_source;
public AZModelArchitects(String id, String architect_image, String architect_description, String architect_period, String architect_source) {
this.id = id;
this.architect_image = architect_image;
this.architect_description = architect_description;
this.architect_period = architect_period;
this.architect_source = architect_source;
}
public String getId() {
return id;
}
public String getArchitect_image() {
return architect_image;
}
public String getArchitect_description() {
return architect_description;
}
public String getArchitect_period() {
return architect_period;
}
public String getArchitect_source() {
return architect_source;
}
public void setId(String id) {
this.id = id;
}
public void setArchitect_image(String architect_image) {
this.architect_image = architect_image;
}
public void setArchitect_description(String architect_description) {
this.architect_description = architect_description;
}
public void setArchitect_period(String architect_period) {
this.architect_period = architect_period;
}
public void setArchitect_source(String architect_source) {
this.architect_source = architect_source;
}
}
Architects_WordAdapter -使用RecyclerView创建ViewViewHolder和BindViewHolder，我将数据提供给新的Intent（这是我的 ArchitectsDetailsActivity.java ）
public class Architects_WordAdapter extends RecyclerView.Adapter<Architects_WordAdapter.ViewHolder> {
public List<AZModelArchitects> data;
public Architects_WordAdapter() {
}
public void setData(List<AZModelArchitects> data) {
this.data = data;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Context context = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(context);
View wordView = inflater.inflate(R.layout.entry_list_item, parent, false);
ViewHolder viewHolder = new ViewHolder(wordView, context);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
AZModelArchitects dictionaryModel = data.get(position);
holder.Text1.setText(dictionaryModel.getId());
holder.Text2.setText(dictionaryModel.getArchitect_period());
}
@Override
public int getItemCount() {
return data.size();
}
// int position = getAdapterPosition()-1;
public class ViewHolder extends RecyclerView.ViewHolder {
public Context context;
public TextView Text1;
public TextView Text2;
public ViewHolder(View itemView, final Context context) {
super(itemView);
this.context = context;
Text1 = itemView.findViewById(R.id.textlista);
Text2 = itemView.findViewById(R.id.textlista_cat);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
int position = getAdapterPosition();
AZModelArchitects dictionaryModel = data.get(position);
Intent intent = new Intent(context, ArchitectsDetailsActivity.class);
intent.putExtra("architect_name", dictionaryModel.getId());
intent.putExtra("architect_image", dictionaryModel.getArchitect_image());
intent.putExtra("architect_description", dictionaryModel.getArchitect_description());
intent.putExtra("architect_period", dictionaryModel.getArchitect_period());
intent.putExtra("architect_source", dictionaryModel.getArchitect_source());
context.startActivity(intent);
}
});
}
}
}
ArchitectsDetailsActivity.java -从Architects_WordAdapter.java获取我的StringExtra
//...
String stringPoza = getIntent().getStringExtra("architect_image");
String stringMainWord = getIntent().getStringExtra("architect_name");
String stringDescription = getIntent().getStringExtra("architect_description");
String stringPeriod = getIntent().getStringExtra("architect_period");
String stringSource = getIntent().getStringExtra("architect_source");
architect_name_Text = findViewById(R.id.mainTextPagina);
viewPoza = findViewById(R.id.poza_pagina_detaliu);
architect_description_Text = findViewById(R.id.architect_description_textafisat);
architect_period_Text = findViewById(R.id.architect_period_textafisat);
architect_source_Text = findViewById(R.id.architect_source_textafisat);
architect_description_Text.setText(Html.fromHtml(stringDescription));
architect_period_Text.setText(Html.fromHtml(stringPeriod));
architect_source_Text.setText(Html.fromHtml(stringSource));
architect_name_Text.setText(Html.fromHtml(stringMainWord));
architect_name_Text.setSelected(true);
toolbar.setTitle(stringMainWord);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mDBHelper = new DatabaseHelperArchitects(this);
findViewById(R.id.left_action_button_location).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//move to previous entry
//populate the intent with the data from the previous row of the database
}
});
findViewById(R.id.right_action_button_location).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//move to next entry
//populate the intent with the data from the next row of the database
}
});
try {
InputStream is = assetManager.open("architects/" + stringPoza);
b = BitmapFactory.decodeStream(is);
viewPoza.setImageBitmap(b);
} catch (IOException e) {
Log.e(TAG, e.getMessage());
}
一切正常，但我想在我的 ArchitectsDetailsActivity.java
上放两个按钮findViewById(R.id.left_action_button_location).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//move to previous entry
//populate the intent with the data from the previous row of the database
}
});
findViewById(R.id.right_action_button_location).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//move to next entry
//populate the intent with the data from the next row of the database
}
});
我该怎么办？