java - Use LinearLayout to display multiple images -

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trying set image on image view stretch image based on screen size , auto fit images doesn't go beyond screen.

my mainactivity:

package com.example.testting;  import android.os.bundle; import android.app.activity; import android.view.menu; import android.widget.imageview; import android.widget.linearlayout; import android.widget.relativelayout; import android.widget.relativelayout.layoutparams;  public class mainactivity extends activity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.main);          linearlayout ll = (linearlayout) findviewbyid(r.id.lllayout);         for(int i=0;i<10;i++)         {                 linearlayout.layoutparams layoutparams = new linearlayout.layoutparams(r.dimen.num_icon, r.dimen.num_icon);                 imageview ii= new imageview(this);                 ii.setbackgroundresource(r.drawable.apple);                 ii.setlayoutparams(layoutparams);                 ll.addview(ii);         }     }      @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }  }

my xml:

<linearlayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:paddingbottom="@dimen/activity_vertical_margin"     android:paddingleft="@dimen/activity_horizontal_margin"     android:paddingright="@dimen/activity_horizontal_margin"     android:paddingtop="@dimen/activity_vertical_margin"     tools:context=".mainactivity"     android:id="@+id/lllayout"     android:orientation="horizontal"     android:gravity="center" >  </linearlayout>

my res/values/dimens file standard phone screen:

<resources>      <!-- default screen margins, per android design guidelines. -->     <dimen name="activity_horizontal_margin">16dp</dimen>     <dimen name="activity_vertical_margin">16dp</dimen>         <dimen name="num_icon">55dp</dimen>  </resources>

my res/values/dimens file 7" screen:

<resources>      <!--          customize dimensions defined in res/values/dimens.xml (such          screen margins) sw600dp devices (e.g. 7" tablets) here.     -->      <dimen name="num_icon">110dp</dimen>  </resources>

my res/values/dimens file 10" screen:

<resources>      <!--          customize dimensions defined in res/values/dimens.xml (such          screen margins) sw720dp devices (e.g. 10" tablets) here.     -->      <dimen name="num_icon">160dp</dimen>  </resources>

it supposed display 10 images using dimension xml it's not. seeing following: enter image description here

1. r.dimen.some_value should contain dimens defined in res/values-xxxx folder.

2. i'm not sure mean adding image in next line, try using relativelayout instead, childs of relativelayout can positioned relative other views using properties android:layout_above, android:layout_below, etc.


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