表在Android Studio中切换活动后移动

我正在尝试为Android编写一个简单的应用程序，我遇到了一个问题，希望你能帮助我） 我正在动态地向表中添加行。在切换活动之前，一切都正常。当我移动到另一个活动并尝试返回时，表中的所有项目都将被移动。我的代码可能有问题，因为我不熟悉android开发，实际上也不熟悉XML。提前感谢您的帮助

我的XML代码：

enter code here

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" android:orientation="vertical">`


<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical" >


<LinearLayout
        android:id="@+id/members"
        android:layout_width="match_parent"
        android:layout_height="240dip"
        android:orientation="vertical"
        android:background="@drawable/layout_border"
        >

        <TextView
            android:layout_width="match_parent"
            android:layout_height="35dip"
            android:text="Mitglieder:"
            android:textColor="@android:color/black"
            android:textSize="18sp"
            android:textStyle="bold"
            android:layout_margin="5dp"/>

    <TableLayout
            android:id="@+id/tblmembers"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center|bottom"
            android:layout_weight="1"
            android:orientation="vertical">


        </TableLayout>

        <Button

            android:id="@+id/add_new_member"
            android:layout_width="150dip"
            android:layout_height="wrap_content"
            android:layout_gravity="right|center"
            android:layout_margin="5dp"
            android:background="@drawable/button_color"
            android:padding="10sp"
            android:text="Neues Mitglied"
            android:textColor="@android:color/white"
            android:clickable="true"
             />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:background="@drawable/layout_border"
        android:layout_marginTop="2dp">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="35dip"
            android:text="Zahlungshistorie:"
            android:textColor="@android:color/black"
            android:textSize="18sp"
            android:textStyle="bold"
            android:layout_margin="5dp"/>

        <TableLayout
            android:id="@+id/bill_history"
            android:layout_width="match_parent"
            android:layout_height="300dip"
            android:layout_gravity="center|bottom"
            android:layout_weight="1"
            android:orientation="vertical"></TableLayout>

        <Button
            android:id="@+id/add_new_entry"
            android:layout_width="150dip"
            android:layout_height="wrap_content"
            android:layout_gravity="right|center"
            android:layout_margin="5dp"
            android:background="@drawable/button_color"
            android:text="Neuer Eintrag"

            android:textColor="@android:color/white"
            />
    </LinearLayout>


</LinearLayout>

<!--</ScrollView>-->
</android.support.constraint.ConstraintLayout>

在此处输入代码

谢谢大家!
 尝试查看当您将所有代码添加到方法
onResume（）
而不是`onCreate（），以生成动态表行时会发生什么情况。但首先需要创建它，还是应该复制代码？
enter code here

package hci.univie.ac.at.myapplication;

import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;

/**
 * Created by Benne on 01.05.2018.
 */

public class SelectedGroupActivity extends AppCompatActivity implements 
View.OnClickListener{
TableLayout tableMembers;
TableLayout bills;
TableRow tmrow;
TableRow tmrow1;
TextView tv1, tv2, tv3, tv4, tv5;
Button btn_member;
Button btn_bill;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_selectedgroup);
    setTitle("Gruppenübersicht");
    Drawable d = getResources().getDrawable(R.drawable.button_border);

    tableMembers = (TableLayout)findViewById(R.id.tblmembers);
    bills = (TableLayout)findViewById(R.id.bill_history);

    btn_member = (Button)findViewById(R.id.add_new_member);
    btn_bill = (Button)findViewById(R.id.add_new_entry);
    btn_member.setOnClickListener(this);
    btn_bill.setOnClickListener(this);


    TableRow.LayoutParams lp= new 
TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
            TableRow.LayoutParams.WRAP_CONTENT);

    lp.setMargins(5, 5, 5, 5);

    //First Rows to the table Bills
    tmrow1 = new TableRow(this);
    tv3 = new TextView(this);
    tv4 = new TextView(this);
    tv5 = new TextView(this);

    tv3.setBackground(d);
    tv4.setBackground(d);
    tv5.setBackground(d);

    tv3.setHeight(110);
    tv4.setHeight(110);
    tv5.setHeight(110);

    tv3.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
    tv4.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
    tv5.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);

    tv3.setTextSize(18);
    tv4.setTextSize(18);
    tv5.setTextSize(18);

    tv3.setTextColor(Color.rgb(255, 0, 0));
    tv4.setTextColor(Color.rgb(255, 0, 0));
    tv5.setTextColor(Color.rgb(255, 0, 0));

    tv3.setText("Beschreibung");
    tv4.setText("Summe");
    tv5.setText("Bezahlt von");

    tmrow1.setId(0);
    tmrow1.addView(tv3);
    tmrow1.addView(tv4);
    tmrow1.addView(tv5);

    tv3.setLayoutParams(lp);
    tv4.setLayoutParams(lp);
    tv5.setLayoutParams(lp);

    bills.addView(tmrow1, new 
TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT,
            TableLayout.LayoutParams.WRAP_CONTENT));

    bills.setColumnStretchable(0, true);
    bills.setColumnStretchable(1, true);
    bills.setColumnStretchable(2, true);



    for (int i = 0; i < MainActivity.mainGruppe.getMembers().size(); ++i) {
        //Adding members
        tmrow = new TableRow(this);
        tv1 = new TextView(this);
        tv2 = new TextView(this);

        tv1.setBackground(d);
        tv2.setBackground(d);

        tv1.setHeight(110);
        tv2.setHeight(110);

        tv1.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
        tv2.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);

        tv1.setTextSize(18);
        tv2.setTextSize(18);

        tv1.setTextColor(Color.rgb(0, 0, 0));
        tv2.setTextColor(Color.rgb(0, 0, 0));

        tv1.setText(MainActivity.mainGruppe.getMembers().get(i));
        tv2.setText("");

        tmrow.setId(i);
        tmrow.addView(tv1);
        tmrow.addView(tv2);

       /* tv1.setLayoutParams(lp);
        tv2.setLayoutParams(lp);*/

        tableMembers.addView(tmrow);
        tableMembers.setColumnStretchable(0, true);
        tableMembers.setColumnStretchable(1, true);
    }
        //Adding bills
    for (int i = 0; i < MainActivity.mainGruppe.getBills().size(); ++i){
        tmrow1 = new TableRow(this);
        tv3 = new TextView(this);
        tv4 = new TextView(this);
        tv5 = new TextView(this);

        tv3.setBackground(d);
        tv4.setBackground(d);
        tv5.setBackground(d);

        tv3.setHeight(110);
        tv4.setHeight(110);
        tv5.setHeight(110);

        tv3.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
        tv4.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
        tv5.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);

        tv3.setTextSize(18);
        tv4.setTextSize(18);
        tv5.setTextSize(18);

        tv3.setTextColor(Color.rgb(0, 0, 0));
        tv4.setTextColor(Color.rgb(0, 0, 0));
        tv5.setTextColor(Color.rgb(0, 0, 0));


tv3.setText(MainActivity.mainGruppe.getBills().get(i).getDescription());

    tv4.setText(String.valueOf(MainActivity.mainGruppe.getBills().get(i).getPrice())) ;
        tv5.setText(MainActivity.mainGruppe.getBills().get(i).getPayer());

        tmrow1.setId(i+1);
        tmrow1.addView(tv3);
        tmrow1.addView(tv4);
        tmrow1.addView(tv5);

        tv3.setLayoutParams(lp);
        tv4.setLayoutParams(lp);
        tv5.setLayoutParams(lp);

        bills.addView(tmrow1, new 
TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT,
                TableLayout.LayoutParams.WRAP_CONTENT));
        bills.setColumnStretchable(0, true);
        bills.setColumnStretchable(1, true);
        bills.setColumnStretchable(2, true);

    }

}

/**
 * Called when a view has been clicked.
 *
 * @param v The view that was clicked.
 */
@Override
public void onClick(View v) {
    int tempid = v.getId();
    Log.i("ID: ", String.valueOf(tempid));

    switch (tempid){
        case (R.id.add_new_member):
            Intent intent = new Intent(this, NewMemberActivity.class);
            startActivity(intent);
            break;
        case (R.id.add_new_entry):
            Intent intent1 = new Intent(this, NewBillActivity.class);
            startActivity(intent1);
            break;
    }

}
}