Android :: Inflated ImageView To Put In GalleryView Isn't Right Size
May 19, 2010
I am trying to inflate an ImageView that scales a Drawable that I can display in a GalleryView. My code to inflate the view seems to work fine, except that the attributes of the ImageView are not applied.Specifically, the inflated ImageView does not have the width/height that I set for it via the android:layout params in XML.Can someone show me what I'm doing wrong?I want to set the width/height of the image in dp, so that it is the correct size across multiple screen dpis and support Android 1.5+.
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Oct 4, 2010
I'm trying to get the real size of an image displayed in an image view. Actually my image is larger than the screen and the imageview is resizing the image to diplay it. I'm looking for this new size.I've tried to override the onDraw method of the ImageView in a custom view but I'm not getting the correct height and width.
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Mar 29, 2010
I'm trying to draw an image in an ImageView, but i want it to be unscaled, with scrollbars as necessary. How can I accomplish this? Right now I just have a drawable set as the android:src of the ImageView in the XML. This autoscales the image to fit the screen width.
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Jun 30, 2010
I'm trying to add a drawable to a layout, using an ImageView, but the drawable doesn't maintain its size and is rendered at 1dp x 1dp. I've called ImageView.setAdjustViewBounds as per the android documentation but this doesn't seem to help. The Drawable is only visible when the ImageView's height and width are set and the drawable is then rendered at those dimensions.
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Aug 27, 2010
I would like to be able to alter the size of some of my ImageViews based on what Drawable they are showing. I've not yet decided on whether I'll get them to read the new dimensions from the Drawable or if I will just have an array/enum storing the heights of these, but what I need help with is the actual changing of the ImageView size.Which of the many many function for altering sizes of things should I be using to change the size of an ImageView while still retaining it's relative positioning in the RelativeLayout it is a part of? I can't work out if I should be changing the bounds of the Drawable or if I should be redefining the LayoutParams of the ImageView or some other method altogether. The drawables are always going to be the same width, but their height will change depending on what is in each tile of a map (which this is rendering).
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Oct 14, 2010
I have an ImageView that contains a bitmap. Now the bitmap can change size within a known range. This makes the surrounding views to relocate which I want to prevent. I've tried setting margins and padding for the ImageView but without success.
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Oct 1, 2010
I have implemented a GalleryView using a custom BaseAdapter. The issue is that when the gallery reaches either end, the getView() calls the last/first item and right after calls the prev/next one, therefore it shows the wrong data. I understand why it needs to call its neighbor items but is it not supposed to call the position where you actually stopped as last?
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Dec 7, 2009
Is there any way to rotate gallery view vertically instead of horizontal.
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May 25, 2010
I am trying to display all the images stored in SD card in a Gallery View. I have tried using the content provider (android.provider.MediaStore.images.Media class), but seem to be getting stuck at a point. Not sure if this is the way to go about it. Here is my code...
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Jun 17, 2010
I was just wondering if Android had built in code so that I could select multiple images in a gallery-view and then have those images exported as filenames in a string array(ex /sdcard/~f1.jpg, /sdcard/~f2.jpg,...).
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Aug 27, 2010
Why aren't menus inflated automatically for you in Android, the way an Activity's layout is?
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May 3, 2009
I've got ~200 png files in the /res/drawable folder, mostly interface and sprite sheet stuff. They're all indexed pngs, and weigh in at a grand total of a bit over 400kb.
When I run aapt to package them into the apk, their filesize nearly doubles. Opening the apk up with 7zip and extracting the drawables confirms it: 790kb.
Does anyone have any idea why this would be happening? I thought the packaging process was meant to compress the pngs, not inflate them!
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Oct 1, 2010
I have an audio player toolbar activity that has a corresponding layout file.
I need this player to show up at the bottom of another activity. I use a ViewStub and inflate the audio toolbar's layout file in the stub.
How do I access the buttons, etc on this inflated view and how do I set their behavior?
The docs on ViewStub did not mention anything about this (or maybe I totally overlooked something).
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Mar 21, 2010
I have built my interface by using ViewStubs, which I inflate during onCreate.
But later in my app, I want to change the View completely, by loading different View into the same place. How do I achieve that?
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Aug 6, 2009
I created a layout xml file that contains an extended textview. What I want is to draw the textview in a bitmap. What do I have to do after inflating the view so that I can use the draw method on the my canvas?
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Apr 2, 2009
I have an activity which extends TabActivity and implements TabContentFactory. For simplicity's sake I'll limit the problem to 1 tab.
In onCreate() I do this:
CODE:..........
In createTabContent:
CODE:...........
So far, so great. I get the tab, the layout is displayed.
I also have a button in the layout, so I do:
CODE:.............
And then I subscribe to it's click event:
CODE:..........
Now, here's the problem. I click the button and nothing happens. I can for example execute the following code from elsewhere:
CODE:.............
And the button will get disabled, but when I tap it (in its *enabled* state) - nothing happens.
If I'm not, could it be that I have another tab, where the another inflated copy of the same layout is displayed? However, in this layout's button's OnClickListener nothing happens as well.
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Jun 12, 2010
I have made a Custom Component in XML, consisting of a button with an imageview stacked on top of it:
<myapp.widget.ClearableCaptionedButton
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<Button
android:id="@+id/ccbutton_button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical|left"
android:textAppearance="?android:attr/textAppearanceMedium"
android:background="@android:drawable/edit_text"/>
<ImageView
android:id="@+id/ccbutton_clear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="5dip"
android:layout_alignRight="@id/ccbutton_button"
android:layout_alignTop="@id/ccbutton_button"
android:layout_alignBottom="@id/ccbutton_button"/>
</myapp.widget.ClearableCaptionedButton>
Extract of java source code:
public class ClearableCaptionedButton extends RelativeLayout implements OnClickListener {
...
public ClearableCaptionedButton(Context context, AttributeSet attrs) { super(context, attrs);
// some stuff that works fine
} ..
protected void onFinishInflate() { super.onFinishInflate();
mButton = (Button) findViewById(R.id.ccbutton_button);
mClear = (ImageView) findViewById(R.id.ccbutton_clear);
mButton.setText(""); // error here: mButton == null
}
My problem is similar to this one. When I try to find the views inside the custom compound, findViewById returns null. But, as you can see, i already added super(context, attrs); to the constructor. I am using the custom component directly in xml layout, like this:
<LinearLayout>
<!-- some stuff -->
<myapp.widget.ClearableCaptionedButton
android:layout_width="fill_parent"
android:layout_height="wrap_content"
app:caption="to"/>
</LinearLayout>
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Apr 2, 2010
Im using an inflater inside an adapter for my listview. I need to add in a different button depending in the state of the data for each row, so Im thinking I need to do this programmatically, but how do I make sure its inserted into the correct place inside the layout?
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Apr 26, 2010
While researching how to create custom compound views in Android, I have come across this pattern a lot (example comes from the Jteam blog)I mostly understand how this is working, except for the part where inflate() is called. The documentation says that this method returns a View object, but in this example the author does not store the result anywhere. After inflation, how is the new View created fromt eh XML associated with this class? I thought about assigning it to "this", but that seems very wrong.
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Jun 15, 2010
I have a listlayout with items in it that looks like this:
There is first an ImageView (the light) and then two textViews. All of this inside a TableLayout. (source here: http://code.google.com/p/switchctrl/source/browse/trunk/android/res/layout/device_switch.xml)
I want to have a rotating animation of a loading indicator Ontop of this light when this particular device (light) performs an action or an action is performed on it.
How do I put an animation ontop of this light imageview?
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Sep 23, 2010
So I'm loading images from a web service, but the size of the images are sometimes smaller or bigger than other images and the visualization looks silly when I put them in a ListView in android. I'd like to fix the size of my ImageView so that it only shows a portion of the image if it's larger than a preset amount. I've tried everything I can think of setting the setMaxWidth/setMaxHeight, setting the scale type to centerCrop, using ClipableDrawable wrapping my BitmapDrawable, setting using Drawable.setBounds(). I've tried setting in the XML and programmatically, but neither worked. I'm very surprised setting max width/height didn't do anything. Below is the XML I'm using ImageView definition in my layout file
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Oct 2, 2009
I am currently developing a dictionary application with voice database. I would like to know about the current Android limitation on the file size. I am using a self-provided sqlite database ( > 50mb ) . I tested that once the built .apk size exceeds ~30mb the app will not be installed onto the simulator (INSTALL_FAILED_ INSUFFICIENT _STORAGE). Could anyone confirm me that if up until now there is no way to embed such large size files in a single apk ( Aimed to sell at Google Market without requiring user to download datafile afterwards). Also, is there a limitation of 1,048,576 bytes for a single file in the assets folder ?
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Jan 22, 2009
if size of image is larger than or smaller than specified display size (on screen), then it is automatically, compressed and stretched resp by android run time or require to handle by explicitly.
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May 7, 2009
Hi,
I would like to see how my app works on a 800x600 android netbook. how can i setup an emulator with this size?
thanks chris
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Jun 30, 2010
I manage a cache of bitmap. Do you have an advise to fix the maximum size of it?
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Jul 8, 2010
Can somebody explain to me what makes up the installed application size? I have an apk that is about 8 MB, and often when I install I get the INSUFFICIENT_STORAGE error. I have around 25-30 MB free space on the phone. I'm doing debugging so I have to upload lots of new versions. If I uninstall the previous version then I can install the new version. The application manager claims that the app is taking up 22 MB. So back to the original question, how come the app is taking up 22 MB when it really only is 8 MB?
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Sep 14, 2010
I would like to know why the size of my shared library .so is bigger than my .apk file generated with Eclipse? Approximatly the so size is twice the apk one. What is strange is after having installed it in the device (2.1 firmware) I checked the size of the apk when I uninstalled it from the device and surprisingly the apk size indicated is bigger even than the .so one. Is there any explaination of that?
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Oct 7, 2010
My app downloads .png files to the sd card for later use. I kept getting OutOfMemoryErrors (if anyone could explain this too, that'd be great!) and so I took a look at the sizes of the images saved to the sd card, and they seem to be roughly double what they are on the server. Why is this, and how can I make them smaller?
public void onCreate(Bundle saved)
setContentView(R.layout.namedrxnscreen);
TextView t1 = (TextView)findViewById(R.id.rxn_text1);
TextView t2 = (TextView)findViewById(R.id.rxn_text2);
TextView t3 = (TextView)findViewById(R.id.rxn_text3);
TextView t4 = (TextView)findViewById(R.id.rxn_text4);
iv = (ImageView) findViewById(R.id.rxn_image);
pb = (ProgressBar) findViewById(R.id.rxn_loading);
vs = (ViewSwitcher) findViewById(R.id.rxn_switch);
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Dec 19, 2012
I am programming an app using an absolute layout (@ eclipse). How to fit the button size with the screen size? (I have four buttons per row).
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Dec 26, 2009
This is my first post. I've had a Moto Droid since day one, and I just love it. It is without a doubt better than any phone that I've had over the years, and that includes the iPhone, BB, etc.
However, there are 2 things that I don't understand - Font size and a spell checker. It is imposiible to read the small font size in emails or text messages.
1. Why has there not been an app to either change the font size or be able to zoom in? Picasy has incorporated multi-touch for zooming, so I've to assume that its doable! Why not have the same in an email client.
2. Why is there not an email client out there that allows for spell checking? There are many such apps for the BB! I am a terrible speller.
I am not complaining, I just want to understand the limitations from a developers prospective, as I am sure these isuues will eventually be addressed.
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