无法在 Cloud Firestore 的编辑文本中设置文本?

Not able to set text in edit text from cloud firestore?

打开笔记后,我看到了笔记标题和内容的文本视图。我想编辑笔记。但是编辑笔记有问题activity。它仅显示 edittext 中的标题文本。但在此内容下方未显示文本。我尝试了很多方法,比如我试图检查我放置标题数据的问题。但它也没有显示标题。表示上层标题编辑文本可以显示标题数据和内容数据,但第二个编辑文本不显示标题数据和内容数据。

这是notes_open.class

public class notes_open extends AppCompatActivity {
        Intent data;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_notes_open);
            Toolbar toolbar = findViewById(R.id.toolbar);
            setSupportActionBar(toolbar);
    
            getSupportActionBar().setDisplayShowHomeEnabled(true);
    
           data= getIntent();
            TextView MyTitle = findViewById(R.id.notesopentitle);
            TextView MyContent= findViewById(R.id.notesopencontent);
            MyContent.setMovementMethod(new ScrollingMovementMethod());
    
    
    
    
            MyTitle.setText(data.getStringExtra("ourtitle"));
            MyContent.setText(data.getStringExtra("ourcontent"));
    
    
    
            FloatingActionButton fab = findViewById(R.id.fab);
            fab.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                            .setAction("Action", null).show();
                }
            });
        }
        @Override
    
        public boolean onCreateOptionsMenu(Menu menu) {
            // Inflate the menu; this adds items to the action bar if it is present.
            MenuInflater inflater= getMenuInflater();
            getMenuInflater().inflate(R.menu.notesopen, menu);
            return super.onCreateOptionsMenu(menu);
        }
        @Override
        public boolean onOptionsItemSelected(@NonNull MenuItem item) {
            switch(item.getItemId()){
                case  android.R.id.home:
                onBackPressed();
                case R.id.edit_note:
                    Intent i =  new Intent(getApplication(),edit_note.class);
                    i.putExtra("ourtitle",data.getStringExtra("ourtitle"));
                    i.putExtra("ourcontent",data.getStringExtra("ourcontent"));
                    startActivity(i);
            }
            return super.onOptionsItemSelected(item);
        }
    }

下面是edit_note.class

public class edit_note extends AppCompatActivity {
Intent data;
EditText edit_title,  edit_note;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_edit_note);
        data =  getIntent();

        edit_title =  findViewById(R.id.edit_ttile);
        edit_note =  findViewById(R.id.edit_note);
        String edititle =  data.getStringExtra("ourtitle");
        String editcontent =  data.getStringExtra("ourcontent");
        try {


            edit_title.setText(edititle);
            edit_note.setText(editcontent);



}catch (NullPointerException ignore){}
    }
}

编辑备注xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".edit_note">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appBarLayout2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay"
        tools:ignore="MissingConstraints">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </com.google.android.material.appbar.AppBarLayout>

    <EditText
        android:id="@+id/edit_ttile"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="textPersonName"
        android:hint="Title"
        android:layout_below="@id/appBarLayout2"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        tools:layout_editor_absoluteY="56dp" />

    <EditText
        android:id="@+id/edit_content"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="textPersonName"
        android:hint="Content"
        android:layout_below="@id/edit_ttile"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        tools:layout_editor_absoluteY="56dp" />


</RelativeLayout>

您的 edittext 分配错误:

edit_note =  findViewById(R.id.edit_note);

相反,它需要:

edit_note =  findViewById(R.id.edit_content);