Java Android ListView中的按钮点击处理
帮助处理通过适配器在ListView中设置的按钮上的单击。Java Android ListView中的按钮点击处理,java,android,listview,Java,Android,Listview,帮助处理通过适配器在ListView中设置的按钮上的单击。 ListAdapter adaptiruy=new simpledapter(this,pizzaNames,R.layout.adapter\u backet,from,to);setAdapter(自适应) 以下是适配器代码: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="m
ListAdapter adaptiruy=new simpledapter(this,pizzaNames,R.layout.adapter\u backet,from,to);setAdapter(自适应)代码>
以下是适配器代码:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:background="@drawable/for_bucket_adapter"
android:gravity="center"
android:layout_marginTop="8sp">
<TextView
android:id="@+id/textok1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="22sp"
android:textColor="@color/white"
android:layout_gravity="center"
android:gravity="center"/>
<TextView
android:id="@+id/textok2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/white"
android:textSize="22sp"/>
<ImageButton
android:layout_gravity="center"
android:layout_width="22sp"
android:layout_height="22sp"
android:layout_marginStart="5sp"
android:background="@drawable/plusss"/>
<Button
android:id="@+id/minus"
android:layout_gravity="center"
android:layout_width="22sp"
android:layout_height="5sp"
android:layout_marginStart="5sp"
android:background="@drawable/minuss"
android:onClick="Click"/>
</LinearLayout>
和活动代码:
public class BasketPage extends Activity {
List<Map<String, String>> pizzaNames = new ArrayList<>();
public String name;
public String phoneNumber;
public String street;
public String home;
public String porch;
public String level;
public String apprt;
public String comment;
public boolean b;
//private Button b = (Button)findViewById(R.id.minus);
WorkBD workBD;
MainActivity mainActivity;
public ListView listView;
public int [] PizzaMass = new int [5];
int indexhelper = -1;
public void creator() {
System.out.println(MainActivity.pepperoni.getCount());
if (MainActivity.pepperoni.getCount() != 0) {
Map<String, String> map = new HashMap<>();
map.put("text1", "Пепперони ");
map.put("text2", MainActivity.pepperoni.getCount() + " шт.");
pizzaNames.add(map);
PizzaMass [0] = ++indexhelper;
}
if (MainActivity.calzone.getCount() != 0) {
Map<String, String> map = new HashMap<>();
map.put("text1", "Кальцоне ");
map.put("text2", MainActivity.calzone.getCount() + " шт.");
pizzaNames.add(map);
PizzaMass [1] = ++indexhelper;
}
if (MainActivity.quattrostagioni.getCount() != 0) {
Map<String, String> map = new HashMap<>();
map.put("text1", "Четыре сезона ");
map.put("text2", MainActivity.quattrostagioni.getCount() + " шт.");
pizzaNames.add(map);
PizzaMass [2] = ++indexhelper;
}
if (MainActivity.quattroformaggi.getCount() != 0) {
Map<String, String> map = new HashMap<>();
map.put("text1", "Четыре сыра ");
map.put("text2", MainActivity.quattroformaggi.getCount() + " шт.");
pizzaNames.add(map);
PizzaMass [3] = ++indexhelper;
}
if (MainActivity.mexican.getCount() != 0) {
Map<String, String> map = new HashMap<>();
map.put("text1", "Мексиканская ");
map.put("text2", MainActivity.mexican.getCount() + " шт.");
pizzaNames.add(map);
PizzaMass [4] = ++indexhelper;
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.bascket_page);
mainActivity= new MainActivity();
creator();
listView = (ListView) findViewById(R.id.titles);
String [] from = {"text1" , "text2"};
String [] fromik = {"ftext1" , "ftext2"};
int [] to = {R.id.textok1 , R.id.textok2};
int [] too = {R.id.ftext1 , R.id.ftext2};
ListAdapter adaptiruy = new SimpleAdapter(this, pizzaNames, R.layout.adapter_backet, from, to);
listView.setAdapter(adaptiruy);
workBD = new WorkBD(this);
culculateFprice();
}
...
}
public class BasketPage扩展活动{
List pizzaNames=new ArrayList();
公共字符串名称;
公共字符串电话号码;
公众街;;
公共字符串回家;
公共门廊;
公共字符串级别;
公共字符串处理;
公共字符串评论;
公共布尔b;
//私有按钮b=(按钮)findViewById(R.id.减号);
WorkBD WorkBD;
主要活动主要活动;
公共列表视图列表视图;
公共整数[]PizzaMass=新整数[5];
int indexhelper=-1;
公共无效创建者(){
System.out.println(MainActivity.pepperoni.getCount());
if(MainActivity.pepperoni.getCount()!=0){
Map Map=newhashmap();
地图放置(“文本1”、“ПццПццц”);
map.put(“text2”,MainActivity.pepperoni.getCount()+“цtt.”);
pizzaNames.add(地图);
PizzaMass[0]=++indexhelper;
}
if(MainActivity.calzone.getCount()!=0){
Map Map=newhashmap();
地图放置(“文本1”、“图片1”);
map.put(“text2”,MainActivity.calzone.getCount()+“цtt.”);
pizzaNames.add(地图);
PizzaMass[1]=++索引帮助;
}
if(MainActivity.quattrostagioni.getCount()!=0){
Map Map=newhashmap();
地图放置(“文本1”、“文本1”);
map.put(“text2”,MainActivity.quattrostagioni.getCount()+“цτ”);
pizzaNames.add(地图);
PizzaMass[2]=++indexhelper;
}
if(MainActivity.quattroformaggi.getCount()!=0){
Map Map=newhashmap();
地图放置(“文本1”、“文本1”);
map.put(“text2”,MainActivity.quattroformaggi.getCount()+“цτ”);
pizzaNames.add(地图);
PizzaMass[3]=++索引帮助;
}
if(MainActivity.mexican.getCount()!=0){
Map Map=newhashmap();
地图放置(“文本1”、“Маааааааа”);
map.put(“text2”,MainActivity.mexican.getCount()+“цtt.”);
pizzaNames.add(地图);
PizzaMass[4]=++indexhelper;
}
}
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.bascket_页面);
mainActivity=新的mainActivity();
创造者();
listView=(listView)findViewById(R.id.titles);
字符串[]from={“text1”,“text2”};
字符串[]fromik={“ftext1”,“ftext2”};
int[]to={R.id.textok1,R.id.textok2};
int[]too={R.id.ftext1,R.id.ftext2};
ListAdapter adaptiruy=新的SimpleAdapter(这个,pizzaNames,R.layout.adapter\u backet,from,to);
setAdapter(自适应);
workBD=新的workBD(本);
culleffrice();
}
...
}
我重新阅读了很多考虑过类似任务的网站,但无法在我的代码中找到并实现它,我希望你能帮助我。提前感谢。如果要处理适配器项目内的单击事件,需要通过创建从SimpleAdapter或BaseAdapter扩展而来的自定义适配器,为按钮设置onClickListener:
public class CustomAdapter extends SimpleAdapter {
public CustomAdapter(Context context, List<? extends Map<String, ?>> data, int resource, String[] from, int[] to) {
super(context, data, resource, from, to);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View inflatedLayout = super.getView(position, convertView, parent);
Button btn = inflatedLayout.findViewById(R.id.btn);
btn.setOnClickListener(v -> {
//Do whatever you want
});
return inflatedLayout;
}
}
使用ListView是个坏主意。这是一个过时的组件。我建议看一个回收视图-。下面是一个如何使用clickListener的示例-
ListAdapter adapter = new CustomAdapter(context, data, R.layout.adapter_layout, from, to);
listView.setAdapter(adapter);