Cordova: Issue with absolute position in Android - android

I'm developing a webapp with Cordova. All is fine for the moment except that in one screen, I have a div with this position:
position: absolute;
overflow-x: hidden;
overflow-y: auto;
-webkit-overflow-scrolling: touch;
left: 0;
right: 0;
top: 300px;
bottom: 40px;
In my browser (computer or smartphone), the element is correctly positioned but in the built app, the element is something like 10 pixels below.
Here is the meta "viewport":
<meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, target-densitydpi=device-dpi">
Does anyone can help me for that? I really don't know why the pixels are not respected.

I found the solution. Never use "line-height" to specify the "height" of an element. For some reason, in the built app (not in a browser), the output height of the element is not corresponding to the line-height.
I hope this will help someone...

Related

White space at bottom on mobile, not reproducible in Chrome simulator

I know there are various similar threads on this but none answer my question. Please look at this most simple HTML code.
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
html, body {
margin: 0;
height: 100%;
background: linear-gradient(to top, blue, white);
background-attachment: fixed;
}
</style>
</head>
<body>
</body>
</html>
Viewed in Chrome for PC (either in normal view or in mobile simulator view) it produces a gradient background that covers the whole screen. Viewed in Firefox mobile for Android or Chrome mobile, the website has a white space at the bottom the size of the address-bar. It either appears right away or it appears when you attempt to scroll the page. Why is it there and how do I get rid of it?
i had the same Problem till hours before.
Set body-height not 100vh, but 100%.
body,html{ padding: 0; margin: 0; height: 100%; } (No background input here!)
In your html document you have to put in a new image-Tag('<'img id="image"'>')
At the end in CSS:
#image{ height: 100vh; background-image: url(..); z-index:-1; background-size: cover; }
So i found out, that 100% is smaller than 100vh actually, what actually kills the white bar at the bottom on android browser while scrolling out the navibar.
Sorry for my broken english. Greetings from germany. xD

How to remove the Android WebView print added margin?

We tries to print a webview content over google cloud print, but no matter what we do the resulted printout adds some margin.
Is there a way to remove this margin?
We tried:
<body style="margin: 0; padding: 0">
then
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
then
mWebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
none worked...
Use the following code to remove margins when printing the WebView.
#page{
margin-left: 0px;
margin-right: 0px;
margin-top: 0px;
margin-bottom: 0px;
}
Just Use It *{margin:0px; padding:0px} Add In Your Style Sheet And Check Once
*{margin:0px; padding:0px}
body,html{padding:0px;margin:0px;}
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
By Default HTML web pages have a padding and margin of 10px; You have to set in your head section or or css file:
<style type="text/css">
html, body {
width:100%;
height: 100%;
margin: 0px;
padding: 0px;
}
It's work for me. Hope it will help you :)
or you can try another one:
Replace your tag with this one:
<body style='margin:0;padding:0;'>
Here's another tip for images in a webview: add a styling that fits images in the width of the screen. Works great on all screen sizes:
<style type='text/css'>
img {max-width: 100%;height:initial;} div,p,span,a {max-width: 100%;}
</style>
If using the css doesn't solve your issue, you can try using a TextView with fromHtml instead of using a webview:
TextView myTextView = (TextView) view.findViewById(R.id.my_textview);
Spanned textviewHtml;
//Note : fromHtml needs a display flag as second argument from API 24
if (Build.VERSION.SDK_INT >= 24) {
textviewHtml= Html.fromHtml(yourHtmlHere, Html.FROM_HTML_MODE_COMPACT);
}
else {
textviewHtml= Html.fromHtml(yourHtmlHere);
}
myTextView.setText(textviewHtml);
For more options on fromHtml you can refer to https://developer.android.com/reference/android/text/Html.html
Hope this helps! ;-)

Strange horizontal scrolling in Android browser

Check out the following demo on an Android device:
Scrolling Demo
There is a red box that is slightly off screen. When the vertical spacer is not present, you can't drag the page around in any direction. When the spacer is present and taking up more vertical space than the window, you can drag the page down (as expected) however, now you can also drag horizontally.
This only seems to happen on Android browsers. Any clues on what's going on here? I'd like to prevent the horizontal scrolling altogether while retaining vertical scrolling.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" id="viewportMobile" content="width=device-width, height=device-height, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="stylesheet" type="text/css" href="test.css" />
<style>
html,body {
overflow: hidden;
}
body {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
overflow-y: visible;
overflow-x: hidden;
}
.offscreen {
position: absolute;
right: -20px;
background-color: #ed0021;
padding: 20px 20px 20px 20px;
}
</style>
<script>
var showSpacer=true;
function toggleSpacer() {
showSpacer = !showSpacer;
var spacer = document.getElementById('spacer');
spacer.style.display = showSpacer ? 'block' : 'none';
}
</script>
</head>
<body>
<div class="toggle-button" onClick="toggleSpacer()">Toggle Spacer</div>
<div class="offscreen"></div>
<div id="spacer" style="width:50px; height:2000px; background-color:#444">
</div>
</body>
</html>
Removing the overflow properties and changing the position to relative for the body element worked for me. It should look like this:
body {
position: relative;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
edit: bad copy/paste
edit 2: updated answer

Mobile content witdh(body) = media width, but user can still scroll

I overlooked all the web ( i guess) and tried to find the solution for this task:
I have all requirements to show a correct content on mobile(I mean meta media and css media and so on), but on my android phone I can scroll to the right. I checked if there are no divs with width more than 320px. Website I'm talking about is http://vasiliib.p.ht/leverage/
I tought this is cause my page content and created a separate page http://vasiliib.p.ht/leverage/mobile.html. Here I inserted simple html code. And, there is the same problem..
I am frustrated .. Please clean my eyes..and show me my mistake, please..
looking forward for your reply.
regards.
<meta name="viewport" content="target-densitydpi=device-dpi, width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
This is the correct answer. It works perfectly.
body{
margin:0px;
}
should read:
body{
margin:0 auto;
}
Where are you handling you're responsive design stuff?
Also this:
.bg-course-content-02 {
background-image: url("http://vasiliib.p.ht/leverage/files/css/../img/bg-course-content-02.png");
margin-left: -970px;
width: 923px;
height: 555px;
}
This:
.bg-course-content-04 {
background-image: url("http://vasiliib.p.ht/leverage/files/css/../img/bg-course-content-04.png");
margin-left: -970px;
width: 923px;
height: 555px;
}
and this:
.bg-course-content-06 {
background-image: url("http://vasiliib.p.ht/leverage/files/css/../img/bg-course-content-06.png");
margin-left: -970px;
width: 923px;
height: 555px;
}
check your widths..
Have you included the meta tag inside the head tag of the HTML?
<meta name="viewport" content="width=device-witdh, initial-scale=1">
that meta tag set the width of the page to the width of your device.

Android browser not respecting overflow: hidden with max-width

I'm trying to make my blogs readable on an android browser, but it always ends up needing to scroll horizontally. Right now, my solution is working in chrome so that when I resize the window to a width smaller than the article content the article will shrink with it without a horizontal scrollbar. You can see an example of a blog article here.
If I do this:
<head>
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=2.0; minimum-scale=1.0; user-scalable=yes;" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<style type="text/css">
body {
overflow: hidden;
margin: 0;
}
#container {
max-width: 650px;
margin: auto;
}
</style>
</head>
<body>
<div id="container">Content goes here.</div>
</body>
then it works as seen here, but something else in my page is messing things up. In chrome, I'm getting the effect I want, but when I open the page on an android browser I have to scroll horizontally.
Edit: I traced this down to the facebook iframe. Anyway to get around this?
I have the same issue occasionally where android completely ignores overflow command. I think the first issue is using overflow hidden on the body, and not an internal element.
I would change:
<style type="text/css">
body {
overflow: hidden;
margin: 0;
}
#container {
max-width: 650px;
margin: auto;
}
</style>
To this:
<style type="text/css">
body {
margin: 0;
}
#container {
overflow: hidden;
max-width: 650px;
margin: auto;
}
</style>
Be careful what goes into the actual "#container" div. While it will probably display off screen, I was never able to fix a bug with object tags (flash video players). Over flow is a pain for mobile. If possible, I would develop fluid and go from there. No real need to set a max-width in that case -- and it will allow the user to browse the website as they want.

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