Develop Reference

View too large to fit into drawing cache on Webview inside scrollview

I am working on a scrollview that contain a webview, it works perfect on the 2.3, 4.1 , but when I try it on the 4.4 emulator, it show
View too large to fit into drawing cache, needs 5744640 bytes, only 3932160 available
The webview is just blank.
And it is the layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:overScrollMode="never" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp" >
<TextView
android:id="#+id/newsTitle"
android:textSize="18sp"
android:textStyle="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/last_update" />
<WebView
android:id="#+id/newsContent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="#string/last_update" />
<TextView
android:id="#+id/newsDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/last_update" />
</LinearLayout>
</ScrollView>
</LinearLayout>
I tried to use mywebView.setDrawingCacheEnabled(false); but it just return the same warning.
Also, I find the problem occur when the webpage is overscreen size , but when I show it , I find the layout of the web is slightly different, on 2.3 , 4.1 , it can simply start the new line if the word is exceed the page, however , in 4.4 it does not , so part of the word is out of the screen .
How to fix it? Thanks

My Suggestion is give layout height to webview so that it wont exceed the your specified height
<LinearLayout
android:id="#+id/webview1"
android:layout_width="fill_parent"
android:layout_height="150dip" >
<WebView
android:id="#+id/sampletxt"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
In your activity just include the below lines
SampleTxt.getSettings().setLoadWithOverviewMode(true);
SampleTxt.getSettings().setJavaScriptEnabled(true);
SampleTxt.loadData("Your Text To show the Webview",
"text/html; charset=UTF-8", null);
It will work fine. any doubts let me know

I suggest you to use your own WebView client. In android we can use WebViewClient or WebChromeClient. Using this you would get better result that you want. Just try it and check.

For WebViews in Android, you should start from the assumption that things are buggy. They shouldn't be, but as you discovered, if you make the background a flat color, it "resolves" the issue.
Having said that, it is still a good idea to keep in mind that you're dealing with a wide range of mobile devices with wildly different processing and memory allocations when you're coding for Android phones, so always be sure to test on a real device.
If you don't have at least 4 or 5 different physical Android devices that you can test on, then look around for services that allow you to use their devices to test remotely. Never believe that because you have tested something in an emulator, it will behave the same on a real device.

Android AdMob SDK strange behaviour

I'm using the latest android admob SDK 6.3.1 and the first ad is downloaded and is shown on the device. Then after the refresh rate time is due, in my case 30 seconds, logcat shows that the ad has been downloaded and the new add is shown correctly. However after a second or less the new ad disappears leaving the space where the add should be blank.
Through trial and error I have found that if I touch the blank space where the ad should be it opens the correct 2nd ad link in the browser. So the add appears to be hidden in some way.
Also if I touch the bottom left hand corner of the blank 2nd ad, then the 2nd ad is shown correctly.
I've tried this with both relative and linear layouts and on different devices but the same thing happens. The first Ad shows correctly, after the refresh interval, the 2nd and all subsequent ads are downloaded and briefly displayed before going blank.
As well as trying different layouts I have also tried setting adview code in XML and programmatically in java source.
That fact that I briefly see the 2nd ad confirms that everything is okay admob server side so that makes me think it's the layout. But I have tried every combination can think of without success.
Ive tried setting: android:layout_width="320dp" android:layout_height="50dp" instead of "wrap_content" or "fill_parent".
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<com.google.ads.AdView android:id="#+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
ads:adUnitId="xxxxxxxxxxxxxxxx"
ads:adSize="BANNER"
ads:loadAdOnCreate="true"/>
</LinearLayout>
This is what I have now which is as per the official admob page.
Manifest
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<activity
android:name="com.google.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize" />
This is my third day trying to solve this, has anyone got any clues?

Do you think it could be device specific. Or API specific.

Best Answer for This Question is that :-
You can set up an Animation to slide the banner down, and when it's out of the view (setup a onAnimationComplete listener) call it's method :
Code in Activity:-
For visible:-
setVisibility(View.VISIBLE);
For:not Hide
setVisibility(View.INVISIBLE);
so it will not take up space in layout any more.

I'm pretty sure this can happen if the same adview id name is used in more than one activity xml.
android:id="#+id/adMob1"

Android apps button size

am an upcoming android developer. I have my app in eclipse running on 2.2 android platform and the only thing remaining is adding fancy buttons to it. I have designed some buttons using photoshop but my main problem is to get the right dimensions (width, height and pixels) for my button so that they can fit properly on the screen. Please help! Thank you.

lucky for you, android sdk comes with a tool that allows you to adjust which parts of your image can be stretched, and which shouldn't be (as i'm thinking that's what you're worrying about). it's called 9-patch, and you can read about it here

What you have to do is play with your .xml file. You have to adjust your Buttons's properties like width and height and that will do.
Start playing with this for example:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:height="50sp"
android:width="100sp"
android:background="#drawable/my_image"
android:text="I'm a button"
/>
</LinearLayout>
I recommend you this reading:
Android Button

Layout displayed in Emulator is not same as in real device

I am trying to display a text box using textView.I am adding some data in it during runtime. I just want it to display a box of size 23 lines.
Code am using is this.
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/twittertext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fadingEdge="vertical"
android:maxLines="23"
android:minLines="23"
android:background="#drawable/dropshadow"
android:scrollbars="vertical"
android:text="Getting data on your slow n/w..."
android:textColor="#ffffff"
/>
</ScrollView>
</LinearLayout>
Now when i see this in emulator it's coming perfectly (Android 2.2) but when i test the same code in a real device (Wildfire 2.2.1) the box is not coming for 23 lines. Rather it just show a 5 line box. Am able to scroll but looks like the
:minLine
is not working.
Please help me.

Ok. I dont have a answer for it. But this is how i solved, just in case someone else want it.
I have used the screen pixels and then calculated the pixels i need for the view. Then added the same as
android:layout_height
property and it worked for me.

Admob ads not showing up

I've got a problem with Admob not showing up Ads...
Here's the LogCat:
WARN/AdMobSDK(502): Ignoring requestFreshAd() because we are requesting an ad right now already.
INFO/AdMobSDK(502): No fill. Server replied that no ads are available (1164ms)
INFO/AdMobSDK(502): No fill. Server replied that no ads are available (846ms)
I've tried test mode, no test mode, emulator, real phone, etc. It never shows anything up, but I get requests and prints on Admob stats, like if it ever worked...
AFAIK, I did everything in the Admob Android SDK... the only thing that could be the cause of any problems, IMHO, would be the fact that I'm using tabbed layout with scrollview and then a relativelayout where the ad shows...
Here's a sample of the layout for a tab:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:myapp="http://schemas.android.com/apk/res/com.xxx.xxx"
android:id="#+id/tababout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FF000000">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FF000000"
android:padding="10px">
<ImageView
android:id="#+id/label_img"
android:src="#drawable/about_header"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:scaleType="centerInside" />
<TextView android:id="#+id/label_know_more_desc"
style="#style/Desc"
android:layout_below="#id/label_img"
android:text="#string/tab_about_know_more_desc" />
<Button android:id="#+id/bt_know_more"
style="#style/Button"
android:gravity="center_vertical|center_horizontal"
android:layout_below="#id/label_know_more_desc"
android:text="#string/tab_about_know_more_bt" />
<com.admob.android.ads.AdView android:id="#+id/ad" android:layout_width="fill_parent" android:layout_height="wrap_content" myapp:backgroundColor="#000000" myapp:primaryTextColor="#FFFFFF" myapp:secondaryTextColor="#CCCCCC" />
</RelativeLayout>
</ScrollView>
And here's the main.xml, not that I think you need it:
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#FF000000">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<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:background="#FF000000"
android:paddingTop="5px">
</FrameLayout>
</LinearLayout>
</TabHost>
I've read in Admob ads will not display when placed inside a tabview that the problem could be the 10px padding I'm throwing in, but even if I disable that, it doesn't work.
I even tried moving the xmlns:myapp to RelativeLayout, but obviously didn't change anything....
Also, I've made my first live ad request over 24 hours ago...
EDIT
Ok, now I'm getting somewhere, I've managed to get test ads showing up (my setTestDevices was too late in the onCreate code, I pushed it up to the first lines), but not real ones... am I missing something? I obviously commented out the setTestDevices line and no ads show up
EDIT 2
Well, I added two internal ads (I already had internal ads enabled, but no internal ads set), and suddenly ads started showing on my app (not only internal ads).
I guess everything altogether made it work?! :)
Thanks everyone!

You aren't positioning the ad's in the RelativeLayout (they need a layout_above or layout_below or whatever to specify where to put them).
Also there is a minimum size for admob that you might want to ensure you match, I think it's like 48dip in height at least, not sure what the horizontal is.
Lastly I don't know where you are trying to place your ad's, but it probably would make more sense in your main frame-layout, I have a padding at the bottom of my app which I use for the ad-view.
Edit: also if your app is public check for ad-revenue. Android pre 2.3 allowed ad's to be hidden behind views and still register clicks. I actually made my initial $1 before my ad's were even visible by anyone.

Another reason that the AdMob Ads won't show up is that you haven't declared the AdActivity which will display the ads when they are clicked on. Without the AdActivity declared in my AndroidManifest.xml, I don't see the ads. With it declared, the Ads show up.
...AndroidManifest.xml...
<!-- AdMob -->
<activity android:name="com.google.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation"/>