如何在 listView 中存储可点击项目(许多)值并在下一个 Activity listView 中显示项目。我试过了,但我只有一个值(如果我点击更多项目,最后一个只显示)来自之前的Activity listView.i使用了String[] type GlobalVariable myval;
全局类
class GlobalClass extends Application {
public static String[] myval;
}
主页 Activity
public class HomeActivity extends Activity {
String[] Category={"----SELECT---- ","BEVERAGES","BREAKFAST","LUNCH","DINNER","DESSERTS","APPETIZERS & SIDES"};
String[] Beverage={"PEPSI","COKE","LASSI","FALOODA","BUTTER MILK","GREEN TEA","BADAM MILK","MASALA CHAI" };
String[] Breakfast={"SIRLOIN & EGG","CFS STEAK & EGG","T-BONE & EGG","TWO EGGS BREAKFAST","2EGG W/MEAT","BEL WAFFLE","BEL WAFFLE W/MEAT","BLUEBERRY CAKE","CAKES","FABULOUS FRENCH TST","MOONS","FRENCH TST"};
String[] Lunch={" CRAB CAKE SANDWICH","TUSCAN GRILLED CHICKEN PANINI","SOUTHWEST TURKEY CLUB"," LOBSTER ROLL","TUNA MELT"," FRENCH DIP","YOUR OWN SANDWICH"};
String[] Dinner={"DUBLIN BAY PRAWN","CRAB FROM BRITTANY","WHITE ASPARAGUS","BLEWIT MUSHROOM","JOHN DORY FISH","MONKFISH","VEAL SWEET BREAD","LAMB","PIGEON FRY"};
String[] Desserts={"ECHOURGNAC CHEESE","HAZELNUT","GARIGUETTE STRAWBERRY","MOUSSE & ZEST","APRICOT","CHOCOLATE"};
String[] Appetizers={"Greek Artichoke Spinach","Seafood Appetizers","Tapenade Flatbread","Cranberry Blue Cheese","Fig and Blue Cheese","Sun-Dried Tomato","Tropical Crab Rangoon"};
Spinner spinner;
ListView l1;
Button b1;
Button b2;
Button b3;
EditText e1;
EditText e2;
String[] item;
int myid;
/** Called when the activity is first created. **/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home);
spinner = (Spinner) findViewById(R.id.spinnerCategory);
l1=(ListView) findViewById (R.id.list);
b1=(Button)findViewById(R.id.button3);
b2=(Button)findViewById(R.id.button2);
b3=(Button)findViewById(R.id.button1);
e1=(EditText)findViewById(R.id.editText1);
e2=(EditText)findViewById(R.id.editText2);
ArrayAdapter<String> adapter = new ArrayAdapter<String> this,android.R.layout.simple_spinner_item, Category);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
final ArrayAdapter<String> bever = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Beverage);
// Assign adapter to ListView
final ArrayAdapter<String> Breakf = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Breakfast);
final ArrayAdapter<String> lunc= new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Lunch);
final ArrayAdapter<String> Dinn= new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Dinner);
final ArrayAdapter<String> Dessert = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Desserts);
final ArrayAdapter<String> Appet= new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Appetizers);
spinner.setOnItemSelectedListener(new OnItemSelectedListener(){
public void onItemSelected(AdapterView<?> parent, View arg1, int pos,long id) {
String Text = parent.getSelectedItem().toString();
if(Text.equals("----SELECT----")) {
}
else if(Text.equals("BEVERAGES")){
l1.setAdapter(bever);
return;
}
else if(Text.equals("BREAKFAST")){
l1.setAdapter(Breakf);
return;
}
else if(Text.equals("LUNCH")){
l1.setAdapter(lunc);
return;
}
else if(Text.equals("DINNER")){
l1.setAdapter(Dinn);
return;
}
else if(Text.equals("DESSERTS")){
l1.setAdapter(Dessert);
return;
}
else if(Text.equals("APPETIZERS & SIDES")){
l1.setAdapter(Appet);
return;
}
}
public void onNothingSelected(AdapterView<?> arg0){
}
});
l1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
Toast.makeText(getApplicationContext(), "SELECTED :: " +((TextView) view).getText(), Toast.LENGTH_SHORT).show();
String s2=(String) ((TextView) view).getText();
// String ss=Integer.toString(myid);
String[] S5=new String[]{s2};
//String[] S1=new String[]{s2};
GlobalClass.myval=S5;
for (int i=0;i<GlobalClass.myval.length;i++){
System .out.println("Clicked-->"+GlobalClass.myval[i]);
}
//System.out.println("Clicked:" + GlobalClass.myval);
// System.out.println("items--"+l1.getItemIdAtPosition(position));
//i.putExtra("item", item);
//GlobalClass.myval=(String[]) l1.getSelectedItem();
//GlobalClass.myval=a1;
//String[] item = (String[]) (l1.getItemAtPosition(position));
//String[] a2=item;
//GlobalClass.myval=a2;
}
});
b1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String tno = e1.getText().toString();
int tn = Integer.parseInt(tno);
Intent i=new Intent(getApplicationContext(),TicketActivity.class);
Bundle b=new Bundle();
b.putInt("Table No:", tn);
i.putExtras(b);
String et= e2.getText().toString();
int et1 = Integer.parseInt(et);
Bundle be=new Bundle();
be.putInt("Guest:", et1);
i.putExtras(be);
startActivity(i);
}
});
}
}
提前致谢
最佳答案
在列表项中点击
l1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
Toast.makeText(getApplicationContext(), "SELECTED :: " +((TextView) view).getText(), Toast.LENGTH_SHORT).show();
String s2=(String) ((TextView) view).getText();
// String ss=Integer.toString(myid);
you add values to a string array like
String[] S5=new String[]{s2};
this will ovverride the previous element the all time shall
not add any other value
//String[] S1=new String[]{s2};
GlobalClass.myval=S5;
for (int i=0;i<GlobalClass.myval.length;i++){
System .out.println("Clicked-->"+GlobalClass.myval[i]);
}
先这样做
//在您的 Activity 中创建之前声明数组列表
private ArrayList<String> AddedItems = new ArrayList<String>();
l1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
Toast.makeText(getApplicationContext(), "SELECTED :: " +((TextView) view).getText(), Toast.LENGTH_SHORT).show();
when lsit tiem is clicked add it to a array list like
AddedItems.add(((TextView) view).getText());
}
Once all click events are done
before going to next activity
b1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
convert the string list to string array or whereevr in the activity you want
// create string array from array list
myval= listPar.toArray(new String[AddedItems .size()]);
}
});
关于android - 如何使用 onItemClickListener 从 ListView 存储可点击项目?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11465956/
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