Id tag with red underline - android

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/mylistview"
android:layout_gravity="center_horizontal"
/>
</LinearLayout>
I've this layout in my project and AndroidStudio underlines in red the part (#+id/mylistview) but everything works fine,
I can inflate the XML and also findViewById(R.id.mylistview);
Can't figure out the problem, by placing the mouse over I get this message
"Top level element is not completed".
By changing ListView with ExpandableListView the error disappear.

There is a bug report at the link below that reports a very similar problem. Perhaps it's an Android Studio bug? Does it give the same error in Eclipse? If not, probably it's the same bug reported below.
https://code.google.com/p/android/issues/detail?id=55633

Related

Android text gets clipped on some devices

I am facing an issue in one phone (till yet). My app uses Hindi fonts. It shows well on emulator, tab, many other phones too. But one of the phone which I am using for testing purpose is showing the text going cut from sides.
I tried almost everything for putting it in the right order but none worked. Here posting the screenshots of two of my test phones and the text.
The screenshot with error:
The screenshot of other phones: and the expected one too:
What could be the reason and how can I solve it? Please let me know!!
TextView configs I am using:
<TextView
android:id="#+id/A_lbl_mandir"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/Abt_mandir"
android:textAlignment="center"
android:textColor="#80000A"
android:textSize="35sp" />
EDIT: My complete activity xml:
<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: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" >
<TextView
android:layout_width="wrap_content"
android:id="#+id/text"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="#string/hello_world" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_below="#id/text" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:padding="5sp"
android:text="#string/test"/>
</ScrollView>
</RelativeLayout>
I have tried and deleted many other things especially for this phone. But unable to solve the issue!
this occurs in 4.1.2 and its documented as a bug in Google which they have fixed in 4.2.
https://code.google.com/p/android/issues/detail?id=34432
This happens with unicode fonts where the Android OS is not able to calculate the length of the text.
try this.
<ScrollView
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_below="#id/text"
android:padding="5dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp"
android:gravity="left"
android:padding="5sp"
android:text="#string/test"/>
</ScrollView>
All right! Found another phone with same issue. In that phone too, the text was clipped. I guess there is some problem with the phone. Because even popular apps like Whatsapp has got the same problem on that device. The Hindi text was cut same as shown in the images above.
Possible fix for that issue: (if someone gets that n what I am doing now.) I realised that browser shows the hindi fonts well on that. So better make a native app on html, javascript especially for such devices and view the HTML using WebView.The application will get a little slow but we have to do it Until we get the actual problem creating it.
Please note: this is not a solution, but a fix to make that work. Better known as "JUGAAD" in hindi.
On some phones (specially on Samsung ones) some custom fonts are cuted off (or clipped). I had this with custom italic font. Some say that you can edit font to add some kind of padding (i can't confirm that because my lack of knowledge of editing fonts) but:
- EditText/TextView add some padding from xml
- Ellipsize (on some devices messing with this helps displaying text correctly)
Also could you post screenshot with enabled developer options to draw layout bounds, this could help to resolve your problem if above solutions won't help

android bg prob

I am trying to add a background to my android project. Heres the code.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:backround="#drawable/awesome_face">
</RelativeLayout>
I spelled everything out correct but when i go into my graphical layout after saving and nothing shows up. Furthermore after i cleaned the project I now have an error on the
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
saying "no resource identifier found for attribute background in package 'android'" Anyone have ideas?
Just like ChristopheCVB said, your backgroud tag is missing a G.
android:backGround="#drawable/awesome_face">

xml / linearlayout not showing properly on device

I'm sorry if this question's been asked already but I wasn't able to find any answers. Here's some background context:
I was testing my app on my Nexus 4 to fix some minor bugs. However, just as eclipse was launching it, there was a powercut in the area, switching my computer off. Eventually, once the power restored, I thought I would set a font by .setTypeFace() before running my app again but this made my app crash when I did run it. So after fiddling around with the code and finding no fix, I decided to get rid of the whole font and just run the app with the bug fix. However, this made my app look like this.
Now on eclipse, the graphical layout is showing this. My app before today was showing like the graphical layout perfectly fine. No errors are showing up on eclipse.
Why has this happened and how do I fix this? Could I have corrupted the whole file?
Thanks.
EDIT: the xml file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/testbg"
android:orientation="vertical"
android:weightSum="100" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="33" >
---- bunch of textviews ----
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="57" >
---- More Textviews ----
</RelativeLayout>
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="10"
android:orientation="horizontal"
android:weightSum="3" >
---- three buttons ----
</LinearLayout>
</LinearLayout>
I finally figured it out - it was the background. I must've obviously messed up the 9.png somewhere because it fixed itself once I got rid of the background.
Normally this happens with my apps when i change the font , some fonts appears like this in the layouts , some play around i use is adding a character or a dot after tab space , and it works , however double check the font issue again ,try to set the font again or to set another font.

Anyone know what this error mean for android tabs?

I am trying to try out the tutorial online and wanted to put the tab to the layout xml. I have change the extends from Activity to TabActivity. In the design view of the layout xml, I have the below.
Error during post inflation process:
TabHost requires a TabWidget with id "android:id/tabs".
View found with id 'tabs' is 'com.android.layoutlib.bridge.MockView'
The following classes could not be found:
I have looked for solution but none of them fixed except I found one in different language. I tried using the translator on google but not so helpful.
Does anyone manage to get the tabs function.
I am using Android 2.2 Api and develop with an eclipse IDE
Known bug http://code.google.com/p/android/issues/detail?id=13092
A user suggested to switch build target to 1.6 and the issue goes away. Obviously a temporary fix.
You need a layout like this:
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp" />
</LinearLayout>
</TabHost>
See the Tab Layout tutorial for more info.
Do you have a TabWidget with id android:id/tabs as the error message tells you you need?
Switch to android Target 3.0 or 3.1. You can find that drop down list on the top right side
I had the same issue. The workaround is detailed in this link:
Comment 63 by blundell...#gmail.com, May 5, 2011
As stated above Quick Fix: Just change the API Target (top left of XML
graphical view) to 3.0 and you can see it

Android: ListView Flicker effect. Any hints on how to get rid of this?

For some reason, whenever I scroll through my list of items, the background inside my listview disappears and reappears giving rise to a "flicker" effect which I don't really want. I've tried the suggestion at: How to make a ListView transparent in Android? but it doesn't work for some reason. Any suggestions?
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/screenLayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/background"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:background="#color/title_background"
android:text="#string/whatsnew_title"
>
</TextView>
<ListView
android:id="#android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
</ListView>
</LinearLayout>
Did you include android:cacheColorHint="#00000000"? It's the most important part of the proposed fix. I've just tried your code (obviously not an exact reproduction, as you're using references to project-specific resources) with it, and it seems to work.
This post on the Android Developers blog should be of your interest.
This can also be achieved from Java (code) side: listView.setCacheColorHint(Color.TRANSPARENT);
Check your theme.xml for <item name="android:windowBackground">#null</item>. If you have it - remove it. I think one of the popular resources gives this line as example (that's how I got mine).

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