Android Image Dialog/Popup same size as image and no border

Question

At the moment I am working on a file browser. Everything works fine with one exception: If the user clicks on an image (jpg, png, bmp, ..), I want the image to be displayed

Answer 1

Add single line code under your image view initialization into your activity and it will solve your problem..

image.setScaleType(ImageView.ScaleType.FIT_XY); 

Answer 2

Have u tried set setType in ImageView?

<ImageView ... android:scaleType="fitXY" ... />

Answer 3

you can make a custom dialog for showing images , make a layout for inflating in dialog's setcontentview , take one linear layout with width and height wrap content and imageview with in it with scale property fitxy .

Answer 4

Change your ImageView from this:

<ImageView
        android:id="@+id/thumbnail_IMAGEVIEW"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:contentDescription="@string/icon_DESCRIPTION" />

To this:

<ImageView
        android:id="@+id/thumbnail_IMAGEVIEW"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:adjustViewBounds="true" <!-- Here is the thing -->
        android:contentDescription="@string/icon_DESCRIPTION" />

Hope this helps.

Answer 5

Use FrameLayout as it's parent rather than RelativeLayout and set to wrap_content and 0 margins.

Try:

<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=".MainActivity"
android:background="@color/background">

<FrameLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/frameLayout"
        android:background="#b2ff7c">

    <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/imageView"
            android:src="@drawable/ic_launcher"/>
</FrameLayout>

</RelativeLayout>

The result should be a background the same size as the ImageView.

If this does work. Try modifying this in a custom theme:

    <style name="Widget.ImageWell">
    <item name="android:background">@android:drawable/panel_picture_frame_background</item>
    </style>