我正在尝试创建一个通知徽章,例如Whatsapp(Near tabs)但无法获取存储在片段中的数据值,但由于徽章将在主要活动中,我无法获取(通话来自片段的动态值。
以下是代码:
LoadJSON代码
private void loadJSONClaim() {
sp = this.getActivity().getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
String usr = sp.getString(UserID, "");
Retrofit retrofitclaim = new Retrofit.Builder()
.baseUrl("http://ec2-54-191-118-200.us-west-2.compute.amazonaws.com/")
.addConverterFactory(GsonConverterFactory.create())
.build();
RequestInterfaceClaim requestclaim = retrofitclaim.create(RequestInterfaceClaim.class);
Call<JSONResponseClaim> call = requestclaim.getJSONClaim(usr);
call.enqueue(new Callback<JSONResponseClaim>() {
@Override
public void onResponse(Call<JSONResponseClaim> call, Response<JSONResponseClaim> responseclaim) {
JSONResponseClaim jsonResponseClaim = responseclaim.body();
dataclaim = new ArrayList<>(Arrays.asList(jsonResponseClaim.getAndroidClaim()));
adapterclaim = new DataAdapterClaim(dataclaim);
mRecyclerViewClaim.setAdapter(adapterclaim);
eligitem.setText(" Eligible to earn " + dataclaim.size() + " items");
/* if(dataclaim.size()==0){
filldata.setVisibility(View.GONE);
emptyclaim.setVisibility(View.VISIBLE);
}
else{
emptyclaim.setVisibility(View.GONE);
filldata.setVisibility(View.VISIBLE);
}*/
}
因此,以下代码在Fragment中工作或者在Main活动中调用数据值应该解决问题,我想。
MainActivity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
CleverTapAPI ct;
BadgeView badgeView = new BadgeView(this,tabLayout);
badgeView.setText("2");
badgeView.show();
有人可以提供帮助吗?
编辑:精致的问题
答案 0 :(得分:2)
首先创建一个界面,其中包含您希望发送的任何内容:
public Interface IEventListener{
public void somMethod(data_type_toSend data)
}
然后在你的片段的类define和构造函数中启动这个接口:
IEventListener myListener;
public YourFragment (IEventListener listener){
myListener=listener
}
最后让您的活动实现您的界面
public class myActivity extends ... implements **IEventListener**{
然后在你的活动覆盖事件回调中:
@Override
public void somMethod(data_type_toSend data){
//what you want to do with sent data to activity
}