I have a big problem. I want to create a control for android in which the user sees an image and over lapping this image are smaller icons/image which are positioned relative to background image.
The smaller icons can be selected.
I really do not know how to go about it.
You could do this by having a clean image as background, like this:
and then you could have TextViews within a RelativeLayout with the names for example, and on every textView you can set the attribute clickable to your method.
Something like this:
<TextView
android:id="#+id/nevada"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/Oregon"
android:layout_marginRight="50dp"
android:layout_marginTop="21dp"
android:layout_toLeftOf="#+id/Cali"
android:clickable="true"
android:onClick="showState"
android:text="#string/Nevada"
android:textColor="#color/contact_map_text_color" />
and on your activity/fragment you will have your method that will be called by the View, in the example case: "showState"
Edit: its probably not the best approach but it certainly works
Related
I have an ImageView defined in layout file like:
android:src="#drawable/ic_home"
During my application workflow I change the resource several times using
iv.setImageResource(some_id);
However if something going wrong I want to get my original resource back. Here is no method like ImageView.resetToDefault() and I do not see any other way than preserve original resource id in my program and set it when I need to return image back. However I need each time modify my code if I decided to change the resource attached to image view. So if somebody knows more elegant solution, then let me know.
PS I can see similar questions unanswered, so it seems Android design lack.
Guys, what about such work around? I make two image views stackable. So my image on top is invisible by XML definition. When I need update image, I just make it visible and reload image. When I want to get image default, I just hide it. Let me try.
After the view is inflated or set, set the ImageView resource programmatically.
defaultImageId = R.drawable.ic_home;
ImageView iv = (ImageView) findViewById(R.layout.my_image_view);
iv.setImageResource(defaultImageId);
//.... sometime later when you want to reset back to the "default"
iv.setImageResource(defaultImageId);
EDIT:
If you insist on keeping the resource id in XML only, ImageView does not allow for this to in its current state. You'll have to extend it and provide the functionality yourself. See the gist below for a working example. (I have tested it).
https://gist.github.com/enragedmrt/9143603
Although Enragedmrt provided a wonderful solution, I still came with a work around as below:
<ImageView
android:id="#+id/img_orig"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:src="#drawable/ic_default" />
<ImageView
android:id="#+id/img_towork"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:src="#drawable/ic_default" />
So when I want set to default I just do iv.setVisibility(View.INVISIBLE);
I have this layout as my list items:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:gravity="center_vertical"
android:layout_width="match_parent"
android:orientation="horizontal"
android:minHeight="42.3dp"
android:layout_height="wrap_content">
<TextView android:id="#+id/txtTagName"
android:textColor="#color/White"
android:layout_width="wrap_content"
android:layout_height="32dp"
android:layout_marginLeft="10dp"
android:textSize="13sp"
android:gravity="center"
android:layout_gravity="left"
android:background="#drawable/tag"/>
<ImageView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_action_discard"
android:layout_marginLeft="10dp"
android:layout_gravity="right"
android:gravity="center"
android:scaleType="center"
android:alpha="0.5"/>
</LinearLayout>
It looks like this:
The tag patch 9 looks like so:
I have 3 questions:
How to make the delete icon always on the right.
How to make the blurry part of the tag image scale properly? (its a patch 9)
Is it better to have a delete icon next to the tag, or use some sort of long click?
Thank you.
How to make the delete icon always on the right.
Use RelativeLayout instead of LinearLayout and use the property android:layout_alignParentRIght="true". left and right layout_gravity does nothing in a horizontal LinearLayout since that ViewGroup already lays Views out from left to right.
How to make the blurry part of the tag image scale properly? (its a patch 9)
Not sure without knowing more about the image but should be the same as the other image.
Is it better to have a delete icon next to the tag, or use some sort of long click?
This is relative to the users who will use your app, I suppose. The delete icon I think is fine and is more explicit. However, most users nowadays, especially younger ones may understand to long click depending on how your whole app works. However, since you have the room, I think the delete icon is probably good.
How to make the delete icon always on the right.
in your xml item layout, for your imageview of the delete icon, add android:layout_weight="0"
How to make the blurry part of the tag image scale properly? (its a patch 9)
sorry, no idea
Is it better to have a delete icon next to the tag, or use some sort of long click?
depends on the app, if there will be other options other than delete, then make all of them in long click, otherwise leave the icon, IMHO
On an iOS App I saw such a Button:
The same I would like to do in Android, how could I achieve this?
What I tried is the following code:
<Button
android:id="#+id/widget41"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:text="Email1 testmail#gmail.com"
android:textStyle="bold" />
Looks something like that:
Well just a normal (ugly looking) Button. I have no idea, how I could style it like in iOS. Any suggestions or links would be appreciated!
The best solution would be to create your own custom view that behaves like the iOS counterpart (though, as other users have mentioned, Android does have it's own design guidelines, and the view that you are seeing is an iOS implementation that is designed for that platform).
If you look at the iOS image above (a copy of yours with some parts highlighted), I have split it up into sections.
You could use an Android ViewGroup like a LinearLayout to create the overall image, and give the LinearLayout a border or background (which can be a bitmap image of a rounded rectangle for example (See Android Nine Patch for an example of how to make this fit multiple screens).
Firstly, for the mail icon you would need a LeftAligned ImageView
with appropriate dimensions.
Next up we have a Bold TextView containing the text "Email1".
This is followed by another TextView which is blue and uses the
elipsize property (as defined in an Android XML layout) to create
"..." at the end once the text has reached the max width it can
consume. (Use android:ellipsize="end" in the XML)
Finally we have an indicator image, which again can be an ImageView
sized appropriately.
You could also achieve this with a RelativeLayout, which would allow you to RightAlign the indicator image, LeftAlign the mail icon, and allow the text to fill the space in between that it can get hold of.
Example of Nine Patch use for the background here
That is UITableView in iOS(just like ListView in android). It depends on the list item design you do it. There is no such Button Control in Android.
You should design your own button to looks like iOS one.
Android has it own design guidelines:
http://developer.android.com/design/patterns/pure-android.html
Well, as others have clearly mentioned there is no default Button in Android like this, and for your info neither is in iOS. Its all about the design. Anything is possible, in the end it all comes to how far are you willing to go to achieve it.
Below is a simple code, that will be close to your design.
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:layout_margin="5dp"
android:background="#drawable/text_background"
android:drawableLeft="#drawable/envelope"
android:drawablePadding="10dp"
android:drawableRight="#drawable/right_arrow"
android:ellipsize="end"
android:gravity="center_vertical"
android:text="#string/email" />
There can be other ways also, like that whole view could be a ViewGroup, either a LinearLayout or a RelativeLayout and there could be multiple TextViews and ImageViews inside that.
Here is a tutorial for creating stylized android buttons. You can round the corners and change the background colors to look like the buttons in ios.
Here is a similar question.
Hope this helps.
I have a listview where each item has 2 images, one on the right and the other on the left. Between them there is a textview that is filled from data. If text is long then it can continue down but there is a lot of free space just as you can see in the image. I want to use this space also to display text. I have been looking around the web and I have seen things like this http://code.google.com/p/android-flowtextview/downloads/detail?name=FlowTextDemo.zip&can=2&q= but this is useless. I don't want to lose the control of the images because I need their click method. What is the best way to do it? I have thought that maybe I can put a textview between images and an other down and when the first is filled continue in the second one but how can I know how many letters can keep the first textview?
I don't understand why FlowTextView (that you linked to) won't work for you. It's derived from RelativeLayout and flows text around any child views. The child views can be your images, positioned as you normally would in a RelativeLayout. Their onClick methods should work just fine.
<com.pagesuite.flowtext.FlowTextView
android:id="#+id/tv"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/the_text >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:onClick="onTopLeftClick"
android:src="#drawable/top_left_image" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:onClick="onTopRightClick"
android:src="#drawable/top_right_image" />
</com.pagesuite.flowtext.FlowTextView>
You will need to set the text in code, or else extend FlowTextView and define your own custom attribute(s) to do it from xml.
First of all, can I just say, I find laying out android UI's to be a frustrating experience? I used to think the XML layouts were simple and clean and awesome but every time I try to make anything with it I spend hours trying to do the simplest things!
In this particular instance I'm trying to make a simple horizontal bar that contains an image button of fixed size on the right and to the left of it I want an ImageView that takes up the rest of the available width. I see similar constructs all the time in the UI: the search box that appears at the top of the screen when searching, the text area and send button for composing text/googletalk messages, etc.
I've tried both a horizontal linear layout and a relative layout, and I can't get the button to look right in either one. My latest attempt has the following layout code:
It looks like this:
Using the hiearchyviewer indicates that both the imageview and the button have the same height (45px). And it shows the view dimensions and positions to be exactly what I'm looking for. Same height (differing widths of course since the ImageView is much wider). And they butt right up next to each other, centered in the Relative Layout. However the button as drawn on screen is obviously not taking up the full ImageButton view. I'm thinking it's something weird about the android system 9patch drawable used for the ImageButton background. But what do I know? I can't get it to look right no matter what I try.
How did you set up your RelativeLayout? Try to set it up like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content">
<ImageButton android:layout_width="wrap_content" android:src="#drawable/icon" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:id="#+id/imgButton"></ImageButton>
<ImageView android:id="#+id/imageView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:src="#drawable/red_button" android:scaleType="fitXY" android:layout_alignBottom="#+id/imgButton" android:layout_alignTop="#+id/imgButton" android:layout_toLeftOf="#+id/imgButton"></ImageView>
</RelativeLayout>
Hope this helps.
If dimensions are exactly how you are looking for , then in ImageButton and ImageView , use android:scaleType="fitXY" and check.
For simple case , I might use linearlayout with horizontal orientation with two buttons in it with proper weights.