[英]How to add buttons toast message "onClick" in fragment
我想在用户单击按钮时显示 Toast 消息。
我尝试了很多解决方案,但对我不起作用。
这是代码
Java “帐户片段”
public class AccountFragment extends Fragment {
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_account, container, false);
// return the view "Layout"
return rootView;
}
// display message for the user
public void Tosta (View view) {
Toast.makeText(getActivity() , "There is no need to Login because you are a tester :D" , Toast.LENGTH_LONG).show();
}}
XML“fragment_account”我在点击时使用
<Button
android:id="@+id/button_login_google"
android:layout_width="261dp"
android:layout_height="50dp"
android:layout_marginTop="50dp"
android:background="@drawable/account_view2"
android:text="Login with Google"
android:onClick="Tosta"
android:textColor="#fff"
android:textSize="18dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView_login" />
看一下这个:
public class AccountFragment extends Fragment {
Button btn;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_account, container, false);
btn = (Button) rootView.findViewById(R.id.button_login_google);
btn.setOnClickListener(this);
return rootView;
}
// display message for the user
@Override
public void onClick(View v) {
// Toast here
Toast.makeText(getActivity(), "toast", Toast.LENGTH_LONG).show();
}
}
你也可以试试这个:
btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
Toast.makeText(getActivity(), "toast", Toast.LENGTH_LONG).show();
}
});
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