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POAdjust view width and height to 50%
 

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    <p>I'm creating a gallery with custom adapter (a relative layout in witch i place an imageview as a thumbnail, a textview as Name and other staff).</p> <p>The gallery displays in fullscreen perfectly, but this is not what i want.. i want the custom relative layout to be scaled to 50% in height and width relatively to the screen size. I tried this : </p> <pre><code>gallery.getLayoutParams().width = relativelayout.getWidth() / 2; gallery.getLayoutParams().height = relativelayout.getHeight() / 2; </code></pre> <p>This was a wrong try, it just set the height and width to the correct size without scaling the content.</p> <p>This is the original view :</p> <p><img src="https://i.stack.imgur.com/lIuNz.png" alt="Original"></p> <p>This is what i've expected :</p> <p><img src="https://i.stack.imgur.com/kGzuL.png" alt="Expectation"></p> <p>And this is what i've got : </p> <p><img src="https://i.stack.imgur.com/sX20j.png" alt="Result"></p> <p>This is the layout Cover : </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" &gt; &lt;ImageView android:id="@+id/ivTourCover" android:layout_width="640dp" android:layout_height="240dp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:contentDescription="@string/app_name" android:scaleType="fitXY" android:src="@drawable/croppedstopgallery_f45d88e4_7864_4dbc_9123_ad7953d8724a" /&gt; &lt;ImageButton android:id="@+id/ivHorizontalLine" android:layout_width="match_parent" android:layout_height="1dp" android:layout_below="@+id/tvTourName" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" android:layout_marginTop="0dp" android:contentDescription="@string/app_name" android:scaleType="fitXY" android:src="@drawable/horizontal_line" /&gt; &lt;TextView android:id="@+id/tvAuthorName" style="@style/Cover.AuthorName" android:layout_width="fill_parent" android:layout_height="19dp" android:layout_alignTop="@+id/ivAuthorThumbnail" android:layout_marginLeft="12dp" android:layout_marginRight="17dp" android:layout_toLeftOf="@+id/ivGo" android:layout_toRightOf="@+id/ivAuthorThumbnail" android:text="Anna Greenleaf" /&gt; &lt;ImageView android:id="@+id/ivAuthorThumbnail" android:layout_width="46dp" android:layout_height="46dp" android:layout_alignLeft="@+id/ivHorizontalLine" android:layout_below="@+id/ivHorizontalLine" android:layout_marginTop="20dp" android:contentDescription="@string/app_name" android:scaleType="fitXY" android:src="@drawable/croppedstopgallery_f45d88e4_7864_4dbc_9123_ad7953d8724a" /&gt; &lt;ImageView android:id="@+id/ivGo" android:layout_width="46dp" android:layout_height="46dp" android:layout_alignRight="@+id/ivHorizontalLine" android:layout_alignTop="@+id/tvAuthorName" android:contentDescription="@string/app_name" android:scaleType="fitXY" android:src="@drawable/tour_cover_go" /&gt; &lt;TextView android:id="@+id/tvAuthorDescription" style="@style/Cover.AuthorDescription" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/tvAuthorName" android:layout_alignRight="@+id/tvAuthorName" android:layout_below="@+id/tvAuthorName" android:text="London native and London over!" /&gt; &lt;SurfaceView android:id="@+id/svFooter" android:layout_width="wrap_content" android:layout_height="30dp" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:layout_alignParentRight="true" android:background="@color/CoverFooter" /&gt; &lt;TextView android:id="@+id/tvFooterText" style="@style/Cover.FooterText" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/svFooter" android:layout_alignBottom="@+id/svFooter" android:layout_centerHorizontal="true" android:layout_marginBottom="10dp" android:text="Individual" /&gt; &lt;com.example.zipdownload.utilities.ui.AutoResizeTextView android:id="@+id/tvTourName" style="@style/Cover.TourName" android:layout_width="wrap_content" android:layout_height="79dp" android:layout_below="@+id/ivTourCover" android:layout_centerHorizontal="true" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" android:layout_marginTop="15dp" android:gravity="center|top" android:text="Beautiful London in Winston Churchill&amp;apos;s footsteps" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>The View Gallery : </p> <pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/rlGallery" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".Gallery" &gt; &lt;Gallery android:id="@+id/gCoverflow" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:gravity="top" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>And the Activity Gallery : </p> <pre><code>public class Gallery extends Activity { private android.widget.Gallery gCoverflow; private RelativeLayout rlGallery; private CoverAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_gallery); rlGallery = (RelativeLayout) findViewById(R.id.rlGallery); adapter = new CoverAdapter(this); gCoverflow = (android.widget.Gallery) findViewById(R.id.gCoverflow); gCoverflow.setAdapter(adapter); } @Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); gCoverflow.getLayoutParams().width = rlGallery.getWidth() / 2; gCoverflow.getLayoutParams().height = rlGallery.getHeight() / 2; } } </code></pre>
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    1. USSeifallah Azzabi
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    1. COandroid:scaleType="fitXY" => "fitCenter"
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    2. COwhere should i put this? in the gallery? or in the parent relative layout of the cover?
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      1. USSeifallah Azzabi
    3. COalso, i'd put width as match_parent, height at wrap_content, and adjustViewBounds at true
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