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[英]How to pass List<CustomObject> in post method using Spring?
[英]How to pass List<CustomObject> through Intents
我有自定义对象的 ArrayList
ArrayList<AvailableCountry>
listAvailableCountries = new ArrayList();
我有两个 AvailableCountry 对象
AvailableCountry obj1=new AvailableCountry();
AvailableCountry obj2=new AvailableCountry();
然后我添加到arraylist
listAvailableCountries.add(obj1);
listAvailableCountries.add(obj2);
这是自定义对象类
public class AvailableCountry {
@SerializedName("Disabled")
@Expose
private Boolean disabled;
@SerializedName("Selected")
@Expose
private Boolean selected;
@SerializedName("Text")
@Expose
private String text;
@SerializedName("Value")
@Expose
private String value;
public Boolean getDisabled() {
return disabled;
}
public void setDisabled(Boolean disabled) {
this.disabled = disabled;
}
public Boolean getSelected() {
return selected;
}
public void setSelected(Boolean selected) {
this.selected = selected;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
现在我想将这个arraylist从活动A传递给活动B。然后我想在活动B中接收。我怎样才能完成这个任务。
1)首先为您的自定义对象类实现Serializable接口
public class AvailableCountry implements Serializable {
@SerializedName("Disabled")
@Expose
private Boolean disabled;
@SerializedName("Selected")
@Expose
private Boolean selected;
@SerializedName("Text")
@Expose
private String text;
@SerializedName("Value")
@Expose
private String value;
public Boolean getDisabled() {
return disabled;
}
public void setDisabled(Boolean disabled) {
this.disabled = disabled;
}
public Boolean getSelected() {
return selected;
}
public void setSelected(Boolean selected) {
this.selected = selected;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
2)将arrayList从A类发送到B类
Intent intent =new Intent(A.this,B.class);
intent.putExtra("listCountry", (Serializable) listAvailableCountries);
startActivity(intent)
3)接收B类中的arraylist
ArrayList<AvailableCountry>listAvailableCountries = (ArrayList<AvailableCountry>) getIntent().getSerializableExtra("listCountry");
使用 Gson 我们可以轻松共享数据
compile 'com.google.code.gson:gson:2.4'
在 A.class 中像这样发送
Intent intent = new Intent(A.this, B.class);
String favJSONString = new Gson().toJson(listAvailableCountries);
intent.putExtra("listAvailableCountries", favJSONString);
startActivity(intent);
并像这样接收 B.class
try {
Type type = new TypeToken<List<AvailableCountry>>() {
}.getType();
ArrayList<AvailableCountry> listAvailableCountries = new Gson().fromJson(getIntent().getStringExtra("listAvailableCountries"), type);
} catch (Exception e) {
e.printStackTrace();
}
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