我尝试具有我的Flightact活动中的deptrurocity值（在FlightCityOnitemSelectedListener class中设置为If/else of onItemselect方法）
现在，如何获得所有我的flightact.java的偏爱？还是其他活动？因为我将在方法中使用许多变量。如何使用它们来使用它们？
package ir.safarbazha.safarbazha.Core.adapter;
import android.provider.Settings;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Spinner;
import android.widget.Toast;
public class FlightCityOnItemSelectedListener
implements AdapterView.OnItemSelectedListener {
String departureCity;
public void onItemSelected(
AdapterView<?> parent,
View view,
int pos,
long id
) {
String selectedCity = parent.getItemAtPosition(pos).toString();
if (selectedCity.equals("آبادان")) {
departureCity="ABD";
Toast.makeText(parent.getContext(),
"آنچه انتخاب شد : " +
parent.getItemAtPosition(pos).toString(),
Toast.LENGTH_SHORT).show();
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
}
=========================================================================================
package ir.safarbazha.safarbazha.Acts;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.ButtonBarLayout;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.animation.Animation;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import ir.safarbazha.safarbazha.Core.adapter.DrawerCustomListAdapter;
import ir.safarbazha.safarbazha.Core.adapter.FlightCityOnItemSelectedListener;
import ir.safarbazha.safarbazha.R;
import uk.co.chrisjenx.calligraphy.CalligraphyContextWrapper;
public class FlightAct extends AppCompatActivity {
Context currentActivity=FlightAct.this;
ActionBar mainActionbar;
ImageView mainToolbarMenu;
ImageView mainToolbarHome;
ImageView mainToolbarAbout;
ImageView mainToolbarAccount;
ImageView mainToolbarSearch;
DrawerLayout mainDLayout;
DrawerCustomListAdapter mainDCLAdapter;
String[] mainDitems;
List<String> mainDItems;
ListView mainDLV;
//Just For This Activity...
Spinner departureCity , arrivalCity;
TextView departureDate , arrivalDate , capacityCount;
RadioButton radioButtonOneWayFlightType , radioButtonRoundTripFlightType;
Button btnSubmitFlightForm;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Localize...
if (!Locale.getDefault().getLanguage().equals("fa")){
String languageToLoad = "fa";
Locale locale = new Locale(languageToLoad);
Locale.setDefault(locale);
Configuration config = new Configuration();
config.locale = locale;
getBaseContext().getResources().updateConfiguration(config,
getBaseContext().getResources().getDisplayMetrics());
this.setContentView(R.layout.act_flight);
}
setContentView(R.layout.act_flight);
//Set Custom ToolBar...
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mainActionbar=getSupportActionBar();
final LayoutInflater inflator = (LayoutInflater) this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = inflator.inflate(R.layout.toolbar, null);
mainActionbar.setCustomView(v);
mainActionbar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
//Set Custom ToolBar Objects...
//MainToolBar Menu Image Object...
mainToolbarMenu=(ImageView)findViewById(R.id.nav_drawer_menu);
mainToolbarMenu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mainDLayout.isDrawerOpen(GravityCompat.START))
mainDLayout.closeDrawer(GravityCompat.START);
else mainDLayout.openDrawer(GravityCompat.START);
}
});
//Main ToolBar Home Image Object...
mainToolbarHome=(ImageView)findViewById(R.id.toolbar_home_icon);
mainToolbarHome.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(currentActivity,HomeAct.class));
}
});
//Main ToolBar About Image Object...
mainToolbarAbout=(ImageView)findViewById(R.id.toolbar_about_icon);
mainToolbarAbout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(currentActivity,AboutAct.class));
}
});
//Main ToolBar Account Image Object...
mainToolbarAccount=(ImageView)findViewById(R.id.toolbar_account_icon);
mainToolbarAccount.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(currentActivity,AccountAct.class));
}
});
//Main ToolBar Search Image Object...
mainToolbarSearch=(ImageView)findViewById(R.id.toolbar_search_icon);
mainToolbarSearch.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(currentActivity,SearchAct.class));
}
});
//Set Custom Navigation Drawer...
mainDLayout=(DrawerLayout)findViewById(R.id.drawer_layout);
mainDLV=(ListView)findViewById(R.id.drawer_lv);
mainDitems= getResources().getStringArray(R.array.main_titles);
mainDItems=new ArrayList<String>(Arrays.asList(mainDitems));
mainDCLAdapter=new DrawerCustomListAdapter(this,mainDItems);
mainDLV.setAdapter(mainDCLAdapter);
mainDLV.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String selectedItem = getResources().getStringArray(R.array.main_titles)[position];
if (position==0)
startActivity(new Intent(currentActivity, HomeAct.class));
else if (position == 1)
startActivity(new Intent(currentActivity,AboutAct.class));
else if (position == 2)
startActivity(new Intent(currentActivity, PostAct.class));
else if (position == 3)
Snackbar.make(view, "کاربر گرامی شما هم اکنون در *پرواز ها* برنامه سفر باز ها هستید!", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
else if (position == 4)
startActivity(new Intent(currentActivity, ProductAct.class));
else if (position == 5)
startActivity(new Intent(currentActivity, AccountAct.class));
else if (position == 6)
startActivity(new Intent(currentActivity, ContactAct.class));
}
});
//Just For This Activity...
addListenerOnButton();
addListenerOnSpinnerItemSelection();
//Selected Departure And Arrival Airports...
departureCity=(Spinner)findViewById(R.id.departure_city);
arrivalCity=(Spinner)findViewById(R.id.arrival_city);
//Selected Flight Type (OneWay or RoundTrip)...
radioButtonOneWayFlightType=(RadioButton)findViewById(R.id.btnRadioOneWayFlightType);
radioButtonRoundTripFlightType=(RadioButton)findViewById(R.id.btnRadioRoundTripFlightType);
radioButtonOneWayFlightType.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
arrivalDate.setVisibility(View.GONE);
}
});
radioButtonRoundTripFlightType.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
arrivalDate.setVisibility(View.VISIBLE);
}
});
//Selected Departure And Arrival Date...
departureDate=(TextView)findViewById(R.id.departure_date);
arrivalDate=(TextView)findViewById(R.id.arrival_date);
//Selected Count Of Capacity...
capacityCount=(TextView)findViewById(R.id.capacity_count);
}
//Set Custom Font For All Views in Core/app/AppController ...
@Override
protected void attachBaseContext(Context newBase) {
super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
}
//Just For This Activity...
//DropDown City Choosing...
public void addListenerOnSpinnerItemSelection() {
departureCity = (Spinner) findViewById(R.id.departure_city);
arrivalCity = (Spinner)findViewById(R.id.arrival_city);
departureCity.setOnItemSelectedListener(new FlightCityOnItemSelectedListener());
arrivalCity.setOnItemSelectedListener(new FlightCityOnItemSelectedListener());
}
// get the selected dropdown list value
public void addListenerOnButton() {
departureCity = (Spinner) findViewById(R.id.departure_city);
arrivalCity = (Spinner) findViewById(R.id.arrival_city);
btnSubmitFlightForm = (Button) findViewById(R.id.btnSubmitFlightActForm);
btnSubmitFlightForm.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(currentActivity,"OnClickListener : "
+"nشهر مبدا : "+
String.valueOf(departureCity.getSelectedItem())
+
"nشهر مقصد : "+
String.valueOf(arrivalCity.getSelectedItem())
,
Toast.LENGTH_SHORT).show();
}
});
}
}
将所需的数据保存在类变量中。
您可以使用捆绑包将数据发送到可以访问该数据的其他活动。
代码示例将数据存储在用于启动第二个活动
的意图中Intent intent = new Intent(FirstActivity.this, SecondActivity.class);
Bundle b = new Bundle();
b.putString("stringvalue", strValue);
b.putLong("longvalue", lngValue);
b.putDouble("doublevalue", doubValue);
b.putBoolean("boolvalue", boolValue);
intent.putExtras(b);
startActivity(intent);
代码从第二个活动中获取捆绑包的数据（此代码将放置在 increate（）方法中）：
// get the Intent that started this Activity
Intent in = getIntent();
Bundle b = in.getExtras();
String strValue= b.getString("stringvalue");
long longValue = b.getLong("longvalue");
double doubleValue= b.getDouble("doublevalue");
boolean boolValue= b.getBoolean("boolvalue");
您可以使其静态，因此您可以在其他类中的任何地方使用它。
更改"公共静态字符串deptrurocity"，而不是"字符串deptrurecity";
然后您可以这样称呼：FlightCityOnitemSelectedListener.departurecity（没有实例化FlightcityOnitemSelectedListener）。