问题描述
This is the error I'm getting我正在尝试在onViewCreated()方法内的片段中使用此库,但我遇到此强制转换错误:-无法强制转换java.lang.classCastException:androidx.appcompat.widget.AppCompatTextView前往de.hdodenhof.circleimageview.CircleImageView。我不知道如何解决这个错误。有人可以帮我吗? FragmentProfile.java:
public class FragmentProfile extends Fragment implements View.OnClickListener {
Button sign_out;
TextView user_number;
private CircleImageView userImage;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater,@Nullable ViewGroup container,@Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_profile,container,false);
}
@Override
public void onViewCreated(@NonNull View view,@Nullable Bundle savedInstanceState) {
super.onViewCreated(view,savedInstanceState);
sign_out = getActivity().findViewById(R.id.user_logout);
userImage = getActivity().findViewById(R.id.user_display_name);
user_number = getActivity().findViewById(R.id.phone_number);
sign_out.setonClickListener(this);
}
@Override
public void onClick(View view) {
FirebaseAuth.getInstance().signOut();
startActivity(new Intent(getActivity(),Login.class));
getActivity().finish();
}
}
fragment_profile.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="match_parent"
android:layout_height="@dimen/dp_180"
android:scaleType="fitXY"
android:src="@drawable/money" />
<de.hdodenhof.circleimageview.CircleImageView xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/profile_image"
android:layout_width="@dimen/dp_95"
android:layout_height="@dimen/dp_95"
android:layout_centerHorizontal="true"
android:layout_marginTop="@dimen/dp_140"
android:scaleType="centerCrop"
android:src="@mipmap/ic_launcher"
app:civ_border_color="@color/textColor"
app:civ_border_width="@dimen/dp_2" />
<TextView
android:id="@+id/user_display_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/profile_image"
android:layout_centerHorizontal="true"
android:layout_marginTop="@dimen/dp_4"
android:fontFamily="@font/balsamiq_sans_bold"
android:text="@string/username"
android:textColor="@color/border"
android:textSize="@dimen/sp_22" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/user_logout"
android:layout_below="@id/user_display_name"
android:layout_margin="@dimen/dp_12"
android:orientation="vertical">
<TextView
android:id="@+id/phone_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/dp_12"
android:layout_marginTop="@dimen/dp_30"
android:fontFamily="@font/balsamiq_sans_bold"
android:text="+91-987654321"
android:textColor="@android:color/black"
android:textSize="@dimen/dp_18" />
</LinearLayout>
<Button
android:id="@+id/user_logout"
android:layout_width="@dimen/dp_200"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="@dimen/dp_30"
android:background="@drawable/button_shape"
android:text="@string/sign_out"
android:textAllCaps="false"
android:textColor="@android:color/white"
android:textStyle="bold" />
</RelativeLayout>
解决方法
key
,
在这里,您正在将Textview ID解析为CircleImageView。您应该将userImage = getActivity().findViewById(R.id.user_display_name);
更改为userImage = getActivity().findViewById(R.id.profile_image);
。这就是为什么您遇到java.lang.ClassCastException:androidx.appcompat.widget.AppCompatTextView异常的原因。
您的问题在这里:
private CircleImageView userImage;
userImage = getActivity().findViewById(R.id.user_display_name);
并在您的布局中:
<TextView
android:id="@+id/user_display_name"
您不能将TextView
投射到CircleImageView
中。