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Apps PercentRelativeLayout only displaying API 23

Discussion in 'Android Development' started by br89, Jul 13, 2016.

  1. br89

    br89 Lurker
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    Working with a `PercentRelativeLayout` (PRL from now on) to scale either `ImageViews` or `Buttons` based on screen size.

    On the emulator running API 23, and on the XML preview API 23 - it looks and works beautifully. However when changing to any other API, including API 24 (or 16, etc), there is no display from `Button` or `ImageView`. Oddly enough `textView` will still show.

    Done so far:

    * Updated appropriate Android Studio patches (do all APIs need to be installed?)

    * Added `compile 'com.android.support:percent:24.0.0'` to gradle build

    * Attempt a load on physical device (phone running API 16 and one API 17) with no luck

    Really getting confused by this one. Any support appreciated. Really would love the simple solution as opposed to setting view percentages programatically.

    Thanks


    Narrowed down to not a problem with the physical device but with the API version itself. Have yet to find a solution as to how to make PRL visible across multiple APIs at least down to 16 and up to 24.


    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="match_parent"
    android: paddingBottom="@dimen/activity_vertical_margin"
    android: paddingLeft="@dimen/activity_horizontal_margin"
    android: paddingRight="@dimen/activity_horizontal_margin"
    android: paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@String/appbar_scrolling_view_behavior"
    tools:context="com.example.y"
    tools:showIn="@layout/app_bar_main"
    android:background="#FFF"
    android:weightSum="1"
    android: orientation="vertical">

    <ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/scrollView"
    android:scrollIndicators="top">

    <android.support.percent.PercentRelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:text="This text appears correctly"
    android:textSize="28sp"
    android:id="@+id/textMainTitle"
    android:layout_gravity="center"
    android:layout_alignParentTop="true"
    android:textColor="#ffffff"
    android:singleLine="true"/>

    <TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:text="As does this text"
    android:id="@+id/textMainSubTitle"
    android:layout_gravity="center_horizontal"
    android:layout_below="@id/textMainTitle"
    />


    <ImageView //DOES NOT APPEAR UNLESS API23
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:id="@+id/btnIntro"
    android:src="@drawable/button1"
    app:layout_widthPercent="30%"
    app:layout_heightPercent="25%"
    android:layout_below="@id/textMainSubTitle"
    android:layout_marginStart="10dp"
    android:layout_marginLeft="10dp" />

    </android.support.percent.PercentRelativeLayout>

    </ScrollView>


    </LinearLayout>
     

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  2. LV426

    LV426 I say we take off and nuke this place from orbit
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  3. br89

    br89 Lurker
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    It's incredibly useless for when it works. I actually used that link/article to learn about the PRL and set it up. The build.gradle only needed the addition of compile 'com.android.support:percent:24.0.0' and has since be synced.

    The UI builder will display API 23, but no others.

    Unfortunately moving the order around doesn't change anything. Since it works in API 23, I don't think it's an issue with the XML layout.
     

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