I am using android support package v4 and the following layout to show up a scrollable tabbar + corresponding slideable contentviews:
<?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">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:gravity="center_vertical"
android:layout_height="wrap_content">
<HorizontalScrollView
android:layout_width="wrap_content"
android:id="#+id/horizontalScrollView"
android:orientation="horizontal"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none">
<TabWidget
android:id="#android:id/tabs"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</HorizontalScrollView>
</LinearLayout>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0"/>
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
</TabHost>
It works well lets say 90% but 10% it just don't redraw the ui. Even the invalidate of the elements doesn't solve the problem.
Now the strangest part: After locking and relocking the phone, everything shows up like expected and works like a charm.
For example:
I add a new tab + fragment.
- Tab + Fragment are added, all methods on them are called, but the UI is just black. lock+unlock = everything is okay again.
Handling userinput on fragment. (See pic)
Notice:
I already tested the invalidation of all elements, it doesn't work.
What else can I do to solve this problems?
Thanks in advance
There was a memoryleak on the tabhost.
Related
I've followed the answer of rekaszero in Android remove space between tabs in tabwidget but now i need to set the tabs fit the screen automatically (in this mini-tut they are too big and they are off the screen) and also need to remove the text because the tabs should have only the icon to occupy the entire tab and not text. I can set their width in the main.class but i dont want to set their width, but they to fit auto.
Can someone help me out?
thanks
Ok. I figured out the big tabs width with the replacement with this code on main.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" >
<TabHost
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="5dp" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</TabWidget>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp" >
</FrameLayout>
</LinearLayout>
</TabHost>
</RelativeLayout>
Now i'll try to remove the text from it. If you already know how help me out. thanks
I have an activity that displays two fragments on the screen, one under the other. The top fragment is the user interface for the activity and the second is a custom ListView. I have two fragments that can fill the top slot, each a different size. The ListView is used for both.
The problem I'm facing is that there is a major gap between the top and bottom fragments. I know that it has something to do with the layout_weight attribute, and layout_weight is the only way I've seen to control how much of the screen a fragment commands.
What I would like to find out is if there is a way to dynamically resize the reserved fragment area when the fragment is loaded, or if I'm stuck with this ugly gap.
Here is my layout:
<?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:orientation="vertical" >
<TabHost
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" >
<TabWidget
android:id="#android:id/tabs"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0"
/>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_weight="0"/>
<FrameLayout
android:id="#+android:id/realtabcontent1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"/>
<FrameLayout
android:id="#+android:id/realtabcontent2"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="2" />
</LinearLayout>
</TabHost>
</LinearLayout>
I have figured it out. The layout height of both FrameLayouts hosting the fragments should be set to android:layout_height="wrap_content" and the layout_weight line should be removed. Then the spacing is handled dynamically on a fragment being loaded to that FrameLayout.
I was using tabhost and trying to disable the tab border line. I used this android:tabStripEnabled="false"
in my XML but it doesn't seem to be working, the line was still there, and I try other way like making changes in the style.xml(which I found from stackoverflow) but it doesn't work either. Any idea?
my tab xml:
<?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" >
<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" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#android:id/tabs" />
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#FFFFFF"
android:tabStripEnabled="false"
android:layout_gravity="bottom" />
</RelativeLayout>
</TabHost>
</LinearLayout>
You can remove the bottom strip of tabs and divider between tabs by using following statement.
TabHost t;
t.getTabWidget().setStripEnabled(false);
t.getTabWidget().setDividerDrawable(R.drawable.ic_launcher);
It requires minSDK 8 (2.2) at least... Review your manifest.
Be sure that there insn't a line, in your code, setting tab's background (I had this problem ...) ;)
I have been trying to develop an android app that contain an activity which is scrollable
and inside the activity, I have 2 textView which I want them to be scrollable as well.
My problem is that
whenever I touch inside the textView the scrolls show up but the main activity part which is the linearLayout directly steel the focus and no longer the textView scroll
the way I have it now is setup for the textView to scroll in the xml file I have done that.
and if I keep raising my finger and put it back on the screen trying to scroll the textView I can move a little bit but as I said, the layout that contains the textView capture the focus and leave me unable to scroll the textView.
I hope I did explain my problem very well.
Please any suggestion to help.
let me explain how the app is built first
first part is: the main(first) activity is a tabHost
which I defined as scrollable
<?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">
<ScrollView
android:id="#+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="422dp" >
</FrameLayout>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="63dp" >
</TabWidget>
</LinearLayout>
</ScrollView>
</TabHost>
where I am having problem with is this activity
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#color/light_gray_color"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:weightSum="1"
android:orientation="vertical"
android:baselineAligned="false">
<LinearLayout
android:id="#+id/linearLayout3"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.04">
<TextView
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:textColor="#color/black_color"
android:layout_gravity="center_horizontal"
android:text="#string/display_label"
android:id="#+id/display_label">
</TextView>
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.83"
android:baselineAligned="false"
android:orientation="horizontal" >
<ScrollView
android:id="#+id/english_scrollView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="0.03" >
<TextView
android:id="#+id/display_english_textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="2px"
android:layout_marginRight="2px"
android:layout_weight="0.03"
android:background="#drawable/black_rectangle"
android:focusable="true"
android:paddingLeft="2px"
android:paddingRight="2px"
android:scrollbars="vertical"
android:textColor="#color/black_color" />
</ScrollView>
<ScrollView
android:id="#+id/translation_scrollView"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="0.03" >
<TextView
android:id="#+id/display_translation_textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="2px"
android:layout_marginRight="2px"
android:layout_weight="0.03"
android:background="#drawable/black_rectangle"
android:focusable="true"
android:paddingLeft="2px"
android:paddingRight="2px"
android:scrollbars="vertical"
android:textColor="#color/black_color" />
</ScrollView>
</LinearLayout>
</LinearLayout>
I guess you should cut <ScrollView> out of the first xml
<?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:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="422dp" >
</FrameLayout>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="63dp" >
</TabWidget>
</LinearLayout>
</TabHost>
My understanding is that you have a vertically scrolling activity, which contains two vertically scrolling text views? If so, you can't do it. Its not just a poor design choice, its literally impossible to tell which view the user intends to scroll when they make swipe motion. You can have horizontal scrolling inside a vertically scrolling view, or vice versa. You can't have horizontal scrolling inside horizontal scrolling or vertical scrolling inside vertical scrolling.
I believe this is mentioned in the listview talk in the 2010 google io conference: http://www.youtube.com/watch?v=wDBM6wVEO70
I have a screen that uses tabs in my android application. There is a line (like a border) that shows between the tabwidget and the framelayout. I want to get rid of that line, but cant seem to find what it is. I have determined that it is part of the FrameLayout by setting its visibilty to gone. Please refer to the code below:
<?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:background="#fb8c10"
>
<ImageView
android:id="#+id/img_confirm_header"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="#drawable/confirm_header"
/>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="0dip"
android:background="#fb8c10"
android:tabStripEnabled="false"
/>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/tab_bg"
/>
</LinearLayout>
</TabHost>
This is a link of the current layout and what I'm trying to do
http://img441.imageshack.us/g/screenshot20110116at513.png/
The orange layout is my app, and the gray is what I'm trying to do.
Notice how in the gray screenshot the tab flows into the frame.
Apologies for the links, I can't post images yet :p
Thanks!
I managed to solve this by manipulating the z-index using relative layout. I was able to position the tabs slightly over the frame layout. Refer to code below:
<?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:background="#fb8c10"
>
<ImageView
android:id="#+id/img_confirm_header"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:src="#drawable/tab_header"
/>
<RelativeLayout
android:id="#+id/widget77"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/transparent"
>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/transparent"
android:layout_marginTop="33dip"
/>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#fb8c10"
android:tabStripEnabled="true"
android:layout_above="#android:id/tabcontent"
android:layout_marginBottom="40dip"
/>
</RelativeLayout>
</LinearLayout>
</TabHost>
Just now I came across this issue. However, I also tried to remove the top border of FrameLayout. I did it. but I don't think it is a way to remove the top border. anyway FYI,
Just place an TextView with background white on Border and use AbsoluteLayout.
Eg:
<AbsoluteLayout>
<TabHost
android:layout_x="0dip"
android:layout_y="5dip" ...>
<AbsoluteLayout android:padding="5dip" android:background="#ffffff">
<TabWidget/>
<FrameLayout ....
android:layout_x="0dip" android:layout_y="65dip" />
</AbsoluteLayout>
</TabHost>
<TextView
android:layout_width="fill_parent" android:layout_height="25dip"
android:layout_x="0dip" android:layout_y="65dip"
android:background="#ffffff"/>
</AbsoluteLayout>