android - Activity with ListView and other elements -

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i dont know how set activity layour right. have layout button @ top , when click want populate listview present data(like history of ordered pizzas). when click button this:

enter image description here

i dont understand why button keeps copying. want 1 @ top.

activity_tab_history.xml

<relativelayout 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:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     android:paddingbottom="@dimen/activity_vertical_margin"     tools:context="com.example.tomek.pizzaservice.tabhistoryactivity">      <button         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="refresh"         android:id="@+id/buttrefresh"         android:layout_alignparenttop="true"         android:layout_alignparentleft="true"         android:layout_alignparentstart="true"         android:layout_alignparentright="true"         android:layout_alignparentend="true"         android:onclick="buttrefreshaction" />      <listview         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:id="@+id/listview"         android:layout_alignparentleft="true"         android:layout_alignparentstart="true"         android:clickable="false"         android:layout_below="@+id/textviewitem" />      <textview         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="new text"         android:id="@+id/textviewitem"         android:layout_below="@+id/buttrefresh"         android:layout_alignparentleft="true"         android:layout_alignparentstart="true" /> </relativelayout>

code:

public void buttrefreshaction(view view){     listview.setadapter(loaddatafromdatabase()); }  private arrayadapter<string> loaddatafromdatabase(){     toast.maketext(tabhistoryactivity.this, "loading orders", toast.length_short).show();     arrayadapter<string> arrayadapter = new arrayadapter<string>(this, r.layout.activity_tab_history, r.id.textviewitem);      random rand = new random();     for(int i=0; i<10; i++){         arrayadapter.add("order date: 2000:01:" +(01+i)+                 ", pizza: " + (rand.nextint(15)+1) +                 ". pizza name bla bla bla" +                 " status: somthin");     }      toast.maketext(tabhistoryactivity.this, "completed loading orders", toast.length_short).show();     return arrayadapter; }

you telling adapter each row has same layout whole thing.

look @ 

arrayadapter<string> arrayadapter = new arrayadapter<string>(this, r.layout.activity_tab_history, r.id.textviewitem);

the second item given should layout row. should this

arrayadapter<string> arrayadapter = new arrayadapter<string>(this, r.layout.my_row_template, r.id.textviewitem);

and row template layout file shows want each row like, on other hand this

arrayadapter<string> arrayadapter = new arrayadapter<string>(this, android.r.layout.simple_list_item_1, android.r.id.text1);

which use default android row layout of line of text


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