在Android中动态添加表行

时间:2013-08-13 11:06:36

标签: android android-layout

我正在尝试创建一个我需要动态添加表行的布局。下面是表格布局xml

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/displayLinear"
    android:background="@color/background_df"
    android:orientation="vertical" >

         <TableRow
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/display_row"
            android:layout_marginTop="280dip" >

</TableLayout>

动态添加行的活动文件是

public void init(){
    menuDB = new MenuDBAdapter(this);
    ll = (TableLayout) findViewById(R.id.displayLinear);

    TableRow row=(TableRow)findViewById(R.id.display_row);
    for (int i = 0; i <2; i++) {

        checkBox = new CheckBox(this);
        tv = new TextView(this);
        addBtn = new ImageButton(this);
        addBtn.setImageResource(R.drawable.add);
        minusBtn = new ImageButton(this);
        minusBtn.setImageResource(R.drawable.minus);
        qty = new TextView(this);
        checkBox.setText("hello");
        qty.setText("10");
        row.addView(checkBox);
        row.addView(minusBtn);
        row.addView(qty);
        row.addView(addBtn);
        ll.addView(row,i);

    }
}

但是当我运行这个时,我的错误

08-13 16:27:46.437: E/AndroidRuntime(23568): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.roms/com.example.roms.DisplayActivity}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

我知道这是由命令ll.addView(row,i);引起的,但当我删除它时,它将所有内容添加到一行而不是为下一个项创建一个新行。我尝试将索引也称为row.addView(addBtn,i),但仍然没有正确填充。请指教。感谢。

7 个答案:

答案 0 :(得分:58)

创建一个init()函数并指向表格布局。 然后创建所需的行和列。

   public void init() {
            TableLayout stk = (TableLayout) findViewById(R.id.table_main);
            TableRow tbrow0 = new TableRow(this);
            TextView tv0 = new TextView(this);
            tv0.setText(" Sl.No ");
            tv0.setTextColor(Color.WHITE);
            tbrow0.addView(tv0);
            TextView tv1 = new TextView(this);
            tv1.setText(" Product ");
            tv1.setTextColor(Color.WHITE);
            tbrow0.addView(tv1);
            TextView tv2 = new TextView(this);
            tv2.setText(" Unit Price ");
            tv2.setTextColor(Color.WHITE);
            tbrow0.addView(tv2);
            TextView tv3 = new TextView(this);
            tv3.setText(" Stock Remaining ");
            tv3.setTextColor(Color.WHITE);
            tbrow0.addView(tv3);
            stk.addView(tbrow0);
            for (int i = 0; i < 25; i++) {
                TableRow tbrow = new TableRow(this);
                TextView t1v = new TextView(this);
                t1v.setText("" + i);
                t1v.setTextColor(Color.WHITE);
                t1v.setGravity(Gravity.CENTER);
                tbrow.addView(t1v);
                TextView t2v = new TextView(this);
                t2v.setText("Product " + i);
                t2v.setTextColor(Color.WHITE);
                t2v.setGravity(Gravity.CENTER);
                tbrow.addView(t2v);
                TextView t3v = new TextView(this);
                t3v.setText("Rs." + i);
                t3v.setTextColor(Color.WHITE);
                t3v.setGravity(Gravity.CENTER);
                tbrow.addView(t3v);
                TextView t4v = new TextView(this);
                t4v.setText("" + i * 15 / 32 * 10);
                t4v.setTextColor(Color.WHITE);
                t4v.setGravity(Gravity.CENTER);
                tbrow.addView(t4v);
                stk.addView(tbrow);
            }

        }

在onCreate方法中调用init函数:

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_main);

        init();
    }

布局文件如:

 <ScrollView
        android:id="@+id/scrollView1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#3d455b"
        android:layout_alignParentLeft="true" >

        <HorizontalScrollView
            android:id="@+id/hscrll1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >

            <RelativeLayout
                android:id="@+id/RelativeLayout1"
                android:layout_width="fill_parent"
                android:layout_gravity="center"
                android:layout_height="fill_parent"
                android:orientation="vertical" >

                <TableLayout
                    android:id="@+id/table_main"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_centerHorizontal="true" >
                </TableLayout>
            </RelativeLayout>
        </HorizontalScrollView>
    </ScrollView>

看起来像:

enter image description here

答案 1 :(得分:51)

您不应该使用布局XML中定义的项目来创建更多的实例。您应该在单独的XML中创建它并对其进行膨胀或者创建TableRow programmaticaly。如果以programmaticaly方式创建它们,应该是这样的:

    public void init(){
    TableLayout ll = (TableLayout) findViewById(R.id.displayLinear);


    for (int i = 0; i <2; i++) {

        TableRow row= new TableRow(this);
        TableRow.LayoutParams lp = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT);
        row.setLayoutParams(lp);
        checkBox = new CheckBox(this);
        tv = new TextView(this);
        addBtn = new ImageButton(this);
        addBtn.setImageResource(R.drawable.add);
        minusBtn = new ImageButton(this);
        minusBtn.setImageResource(R.drawable.minus);
        qty = new TextView(this);
        checkBox.setText("hello");
        qty.setText("10");
        row.addView(checkBox);
        row.addView(minusBtn);
        row.addView(qty);
        row.addView(addBtn);
        ll.addView(row,i);
    }
}

答案 2 :(得分:9)

正如Fredigato所说,您也可以在单独的布局文件中声明 RelativeLayout 。然后使用:

实例化它
for(int i = 0; i < 6; i ++){
LayoutInflater inflater = (LayoutInflater)getApplicationContext().getSystemService
                (Context.LAYOUT_INFLATER_SERVICE);
RelativeLayout row = (RelativeLayout) inflater.inflate(R.layout.table_view,null);
        quizesTableLayout.addView(row,i);
}

在这种方法中,您可以轻松地使用XML 设计一个自定义行并重复使用。

现在,能够在实例化的RelativeLayout中更改子视图。您可以调用 row.childAt(index)

因此,假设您在RelativeLayout中有一个TextView,您可以使用:

TextView tv = (TextView) row.childAt(0);
tv.setText("Text");

答案 3 :(得分:3)

更改init的代码,如下所示,

public void init(){
    menuDB = new MenuDBAdapter(this);
    ll = (TableLayout) findViewById(R.id.displayLinear);
    ll.removeAllViews()

    for (int i = 0; i <2; i++) {
        TableRow row=(TableRow)findViewById(R.id.display_row);
        checkBox = new CheckBox(this);
        tv = new TextView(this);
        addBtn = new ImageButton(this);
        addBtn.setImageResource(R.drawable.add);
        minusBtn = new ImageButton(this);
        minusBtn.setImageResource(R.drawable.minus);
        qty = new TextView(this);
        checkBox.setText("hello");
        qty.setText("10");
        row.addView(checkBox);
        row.addView(minusBtn);
        row.addView(qty);
        row.addView(addBtn);
        ll.addView(row,i);

    }

答案 4 :(得分:1)

Activity
    <HorizontalScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TableLayout
            android:id="@+id/mytable"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

        </TableLayout>
    </HorizontalScrollView>

你的班级

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_testtable);
    table = (TableLayout)findViewById(R.id.mytable);
    showTableLayout();
}


public  void showTableLayout(){
    Date date = new Date();
    int rows = 80;
    int colums  = 10;
    table.setStretchAllColumns(true);
    table.bringToFront();

    for(int i = 0; i < rows; i++){

        TableRow tr =  new TableRow(this);
        for(int j = 0; j < colums; j++)
        {
            TextView txtGeneric = new TextView(this);
            txtGeneric.setTextSize(18);
            txtGeneric.setText( dateFormat.format(date) + "\t\t\t\t" );
            tr.addView(txtGeneric);
            /*txtGeneric.setHeight(30); txtGeneric.setWidth(50);   txtGeneric.setTextColor(Color.BLUE);*/
        }
        table.addView(tr);
    }
}

答案 5 :(得分:0)

公共布尔addArtist(String artistName){

    SQLiteDatabase db= getWritableDatabase();

    ContentValues data=new ContentValues();
    data.put(ArtistMaster.ArtistDetails.COLUMN_ARTIST_NAME,artistName);
    long id = db.insert(ArtistMaster.ArtistDetails.TABLE_NAME,null,data);

    if(id>0){
        return true;
    }else{
        return false;
    }


}

//在活动中

答案 6 :(得分:0)

您可以在TableRow中使用充气机:

for (int i = 0; i < months; i++) {
    
    View view = getLayoutInflater ().inflate (R.layout.list_month_data, null, false);
        
    TextView textView = view.findViewById (R.id.title);
    
    textView.setText ("Text");
        
    tableLayout.addView (view);
    
}

布局:

<TableRow
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:layout_centerInParent="true"
    android:gravity="center_horizontal"
    android:paddingTop="15dp"
    android:paddingRight="15dp"
    android:paddingLeft="15dp"
    android:paddingBottom="10dp"
    >
    
    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:gravity="center"
        />
    
</TableRow>