TextViews invisible inside LinearLayout?

0
votes

I have some TextViews inside a LinearLayout. At runtime, the LinearLayout is visible, but none of the TextViews are. Here is the XML:

<FrameLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="0.5384615384615385"
        android:scaleType="fitXY"
        android:adjustViewBounds="true">
<LinearLayout 
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <LinearLayout 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:orientation="horizontal"
    >
    <TextView
            android:id="@+id/onezero"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="one"
            android:typeface="sans"
            android:layout_weight="1"
            android:layout_margin="17dp"
            android:textIsSelectable="true"
            android:clickable="true" />
    <TextView
            android:id="@+id/oneone"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="two"
            android:typeface="sans"
            android:layout_margin="17dp"
            android:textIsSelectable="true"
            android:clickable="true" />
    <TextView
            android:id="@+id/onefour"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="three"
            android:layout_weight="1"
            android:typeface="sans"
            android:layout_margin="17dp"
            android:textIsSelectable="true"
            android:clickable="true" />
    <TextView
            android:id="@+id/other"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="four"
            android:layout_margin="17dp"
            android:typeface="sans"
            android:layout_weight="1" 
            android:textIsSelectable="true"
            android:clickable="true" />
    </LinearLayout>
    <ScrollView 
        android:id="@+id/scrollview1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:scrollbars="vertical"
    android:fillViewport="true">
    <TextView
            android:id="@+id/tv1"
            android:layout_width="fill_parent"
        android:layout_height="wrap_content"

            android:typeface="sans"
            android:textSize="17sp" 
            />

    </ScrollView>
    </LinearLayout>
</FrameLayout>

How do I make them visible?

EDIT: Code that accesses this layout:

void fragment(){
                ten.setTextColor(0xFFFFFF);//These are the 4 TextViews
        eleven.setTextColor(0xFFFFFF);
        fourteen.setTextColor(0xFFFFFF);
        other.setTextColor(0xFFFFFF);

            ten.setVisibility(View.VISIBLE);
            eleven.setVisibility(View.VISIBLE);
        fourteen.setVisibility(View.VISIBLE);
        other.setVisibility(View.VISIBLE);
}

Code where I am initializing the textviews:

ten=(TextView)findViewById(R.id.onezero);
eleven=(TextView)findViewById(R.id.oneone); 
fourteen=(TextView)findViewById(R.id.onefour);
other=(TextView)findViewById(R.id.other);

EDIT: I tried clicking on the LinearLayout area and the TextViews are registering clicks.. that means that they are there but invisible...

6
androidxmlandroid-listviewandroid-linearlayout
I ran your code.. its working fine... Can u show the code that accesses this view to the activity? - amalBit
+1 @amal, views are visible - Y2i
@amal Added the code. - vergil corleone
@vergilcorleone set the background color of your framelayout to red and see if the framelayout itself is showing at all. - Su-Au Hwang
@Su-AuHwang Hi, I set the TextViews' background to red, now they are visible as red rectangles, but no text is visible inside them, additionally, they are registering clicks, that means the text is present, but somehow invisible . - vergil corleone

6 Answers

2
votes

The color you are applying is white... 

 0xFFFFFF

try changing the color to contrast with your layout color..

Edit:

Its took a long time for me to realize this.. try it with the following code:

 textview.setTextColor(Color.parseColor("#bdbdbd"));
0
votes

you are using android:layout_weight - ratio based space distribution. To make it work you have to set:

android:layout_width="0dp"

0
votes

Add this in your xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

And then change your text color in java class

use

000000

instead 

0xFFFFFF
0
votes

Change your layout with this prefixes 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"

or

In FrameLayout android:layout_height="0dp" this will make the view invisible, probably intended for layout_width should be wrap_content

0
votes
You have not assigned the layout_height of your parent layout i.e. FrameLayout. Try this:

<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="0.5384615384615385"
    android:adjustViewBounds="true"
    android:scaleType="fitXY" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" >

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:orientation="horizontal" >

            <TextView
                android:id="@+id/onezero"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_margin="17dp"
                android:layout_weight="1"
                android:clickable="true"
                android:text="one"
                android:textIsSelectable="true"
                android:typeface="sans" />

            <TextView
                android:id="@+id/oneone"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_margin="17dp"
                android:layout_weight="1"
                android:clickable="true"
                android:text="two"
                android:textIsSelectable="true"
                android:typeface="sans" />

            <TextView
                android:id="@+id/onefour"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_margin="17dp"
                android:layout_weight="1"
                android:clickable="true"
                android:text="three"
                android:textIsSelectable="true"
                android:typeface="sans" />

            <TextView
                android:id="@+id/other"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_margin="17dp"
                android:layout_weight="1"
                android:clickable="true"
                android:text="four"
                android:textIsSelectable="true"
                android:typeface="sans" />
        </LinearLayout>

        <ScrollView
            android:id="@+id/scrollview1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:fillViewport="true"
            android:scrollbars="vertical" >

            <TextView
                android:id="@+id/tv1"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:textSize="17sp"
                android:typeface="sans" />
        </ScrollView>
    </LinearLayout>

</FrameLayout>
0
votes

Apparently, using hex codes for colors in:

    ten.setTextColor(0xFFFFFF);//These are the 4 TextViews
    eleven.setTextColor(0xFFFFFF);
    fourteen.setTextColor(0xFFFFFF);
    other.setTextColor(0xFFFFFF);

doesn't work. I switched the 0xFFFFFF with Color.WHITE:

    ten.setTextColor(Color.WHITE);//These are the 4 TextViews
    eleven.setTextColor(Color.WHITE);
    fourteen.setTextColor(Color.WHITE);
    other.setTextColor(Color.WHITE);

This works perfectly.

EDIT: Figured out why the hex codes didn't work. We need to attach a transparency hex at the beginning of every hex. For example if you want the colors to be 80% opaque, here's how to find the transparency hex:

255 * 0.8 = 204

Now convert 204 to hex( using google), you'll get 0xCC. Add this before the hex code, and you'll get 0xCCFFFFFF. Using this makes it work perfectly.