我收到此错误。
无法解决此错误,请帮忙。
项目中没有其他错误。
卡在这了。
主要 Activity
public class MainActivity extends AppCompatActivity {
String name, email;
FirebaseAuth mAuth;
Button submit;
DatabaseReference rootRef,demoRef;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE); //will hide the title
getSupportActionBar().hide(); // hide the title bar
setContentView(R.layout.activity_main);
name = findViewById(R.id.uName);
email = findViewById(R.id.uEmail);
我正在使用 constarint 布局。我已将所有内容设置正确。
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background"
android:gravity="center">
<EditText
android:id="@+id/uName"
android:layout_width="0dp"
android:layout_height="58dp"
android:layout_marginStart="48dp"
android:layout_marginLeft="48dp"
android:layout_marginTop="24dp"
android:layout_marginEnd="48dp"
android:layout_marginRight="48dp"
android:background="@drawable/border"
android:hint="@string/name"
android:paddingLeft="5dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView" />
错误
Unexpected implicit cast to String: layout tag was EditText less... (Ctrl+F1)
Inspection info:Keeps track of the view types associated with ids and if it finds a usage of the id in the Java code it ensures that it is treated as the same type. Issue id: WrongViewCast
Type parameter T has incompatible upper bounds: View and String
最佳答案
您好,欢迎来到 Stack Overflow
实际上,您正在尝试从布局中获取 editText 的引用。
name = findViewById(R.id.uName);
变量name
不是EditText
类型变量。它是String
类型变量。这就是为什么您的应用程序显示转换异常。
使用 EditText
代替 String
并替换
String name, email;
与
EditText name, email;
关于java - 意外隐式转换为字符串 : layout tag was EditText error,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/57017622/