만들기 테이블 행은

Question

나는 나의 테이블 레이아웃 스크롤하기 위해 내 상대 레이아웃의 스크롤 뷰를 작성하려하지만 난이 오류가 점점 계속 :

02-02 19:29:10.116: E/AndroidRuntime(9400): 
 
java.lang.RuntimeException: Unable to start activity ComponentInfo{test.com.classmanagertest/test.com.classmanagertest.StudentsMasterList}: java.lang.IllegalStateException: 
 
The specified child already has a parent. You must call removeView() on the child's parent first.

이것은이다 내 표 레이아웃이 데이터베이스에 디스플레이의 필드 :

@Override 
 
    public void onCreate(Bundle savedInstanceState) 
 
    { 
 

 
     super.onCreate(savedInstanceState); 
 
     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 
 
     setContentView(R.layout.students_masterlist); 
 
     db=openOrCreateDatabase("ClassManager",MODE_WORLD_WRITEABLE, null); 
 

 

 
     Cursor c=db.rawQuery("SELECT StudPic, StudentID, LastName FROM MasterStudents", null); 
 
     int count= c.getCount(); 
 
     c.moveToFirst(); 
 
     TableLayout tableLayout = new TableLayout(getApplicationContext()); 
 
     tableLayout.setVerticalScrollBarEnabled(true); 
 
     TableRow tableRow; 
 
     TextView textView, textView1; 
 
     ImageView StudImageView; 
 

 
     RelativeLayout rl=(RelativeLayout)findViewById(R.id.layout); 
 
     ScrollView sv = new ScrollView(this); 
 
     sv.addView(tableLayout); 
 
     rl.addView(sv); 
 

 
     for (Integer j = 0; j < count; j++) 
 
     { 
 
      tableRow = new TableRow(getApplicationContext()); 
 

 
      StudImageView = new ImageView(getApplicationContext()); 
 
      StudImageView.setPadding(20, 20, 20, 20); 
 
      StudImage=c.getBlob(c.getColumnIndex("StudPic")); 
 
      Bitmap b1= BitmapFactory.decodeByteArray(StudImage, 0, StudImage.length); 
 
      StudImageView.setImageBitmap(b1); 
 
      tableRow.addView(StudImageView); 
 

 
      textView1 = new TextView(getApplicationContext()); 
 
      textView1.setText(c.getString(c.getColumnIndex("StudentID"))); 
 
      textView1.setPadding(20, 20, 20, 20); 
 
      textView1.setTextColor(getResources().getColor(R.color.blueactionbar)); 
 
      textView1.setTextSize(TypedValue.COMPLEX_UNIT_DIP,25); 
 
      textView1.setTypeface(null, Typeface.BOLD); 
 
      tableRow.addView(textView1); 
 

 
      textView = new TextView(getApplicationContext()); 
 
      textView.setText(c.getString(c.getColumnIndex("LastName"))); 
 
      textView.setPadding(20, 20, 20, 20); 
 
      textView.setTextColor(getResources().getColor(R.color.blueactionbar)); 
 
      textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP,25); 
 
      textView.setTypeface(null, Typeface.BOLD); 
 
      tableRow.addView(textView); 
 
      tableLayout.addView(tableRow); 
 

 
      c.moveToNext() ; 
 
     } 
 
     setContentView(tableLayout); 
 
     db.close(); 
 
    }

이 내 XML 파일입니다

<?xml version="1.0" encoding="utf-8"?> 
 

 
<RelativeLayout 
 
    xmlns:android="http://schemas.android.com/apk/res/android" 
 
    android:orientation="horizontal" 
 
    android:layout_width="match_parent" 
 
    android:layout_height="match_parent" 
 
    android:background="@color/white" 
 
    android:layout_gravity="center_horizontal" 
 
    android:scrollbars="vertical|horizontal" 
 
    android:id="@+id/layout"> 
 

 

 

 
</RelativeLayout>

가 어떻게이 오류를 수정합니까?

도움을 주시면 감사하겠습니다. 정말 고맙습니다!

Answer 1

@Override 
 
    public void onCreate(Bundle savedInstanceState) 
 
    { 
 

 
     super.onCreate(savedInstanceState); 
 
     getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 
 
     setContentView(R.layout.students_masterlist); 
 
     db=openOrCreateDatabase("ClassManager",MODE_WORLD_WRITEABLE, null); 
 

 

 
     Cursor c=db.rawQuery("SELECT StudPic, StudentID, LastName FROM MasterStudents", null); 
 
     int count= c.getCount(); 
 
     c.moveToFirst(); 
 
     TableLayout tableLayout = new TableLayout(getApplicationContext()); 
 
     tableLayout.setVerticalScrollBarEnabled(true); 
 
     TableRow tableRow; 
 
     TextView textView, textView1; 
 
     ImageView StudImageView; 
 

 
     RelativeLayout rl=(RelativeLayout)findViewById(R.id.layout); 
 
     ScrollView sv = new ScrollView(this); 
 
     sv.addView(tableLayout); 
 
     rl.addView(sv); 
 
     for (Integer j = 0; j < count; j++) 
 
     { 
 
      tableRow = new TableRow(getApplicationContext()); 
 
      StudImageView = new ImageView(getApplicationContext()); 
 
      StudImageView.setPadding(20, 20, 20, 20); 
 
      StudImage=c.getBlob(c.getColumnIndex("StudPic")); 
 
      Bitmap b1= BitmapFactory.decodeByteArray(StudImage, 0, StudImage.length); 
 
      StudImageView.setImageBitmap(b1); 
 
      tableRow.addView(StudImageView); 
 

 
      textView1 = new TextView(getApplicationContext()); 
 
      textView1.setText(c.getString(c.getColumnIndex("StudentID"))); 
 
      textView1.setPadding(20, 20, 20, 20); 
 
      textView1.setTextColor(getResources().getColor(R.color.blueactionbar)); 
 
      textView1.setTextSize(TypedValue.COMPLEX_UNIT_DIP,25); 
 
      textView1.setTypeface(null, Typeface.BOLD); 
 
      tableRow.addView(textView1); 
 

 
      textView = new TextView(getApplicationContext()); 
 
      textView.setText(c.getString(c.getColumnIndex("LastName"))); 
 
      textView.setPadding(20, 20, 20, 20); 
 
      textView.setTextColor(getResources().getColor(R.color.blueactionbar)); 
 
      textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP,25); 
 
      textView.setTypeface(null, Typeface.BOLD); 
 
      tableRow.addView(textView); 
 
      tableLayout.addView(tableRow); 
 
      c.moveToNext() ; 
 
     } 
 
     db.close(); 
 
     rl.requestLayout(); 
 

 
    }

최초 된 setContentView는 상위에 포함 된보기로 된 setContentView하려는 당신의 rows.Therefore이있는 테이블 레이아웃을 포함 parenet 상대 레이아웃이라고 당신을 이미 ieContentView를 설정했습니다.

rl은 에 tableLayout을 포함한다. 하지만 먼저 활동보기를 rl으로 설정하고 tableLayout으로 설정하십시오.

대신 내용보기를 rl으로 설정해야합니다. 그런 다음 tableLayout을 채우고 부모보기에서이라는 layout.ie 호출을 새로 고칩니다.