Android :: Layout_gravity Effect In Main.xml?
Sep 29, 2010
I have 4 buttons in a horizontal linear layout. I'd like the right edge of the 4th button to align with the right edge of the linear layout (equal to screen width) I've tried using android:layout_gravity="right" but it doesn't work - the right button is to the right of the 3rd one but not right aligned . Am I missing something obvious?
main.xml with only the relevant layout params only is:
CODE:....
This doesn't seem to match the stated behaviour for layout_gravity in the SDK reference :"Defines how to place the view, both its x- and y-axis, within its parent view group."
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Aug 14, 2010
I know we can set the following value to the anroid:gravity and android:layout_gravity :
center
center_vertical
center_horizontal , etc.
But i am confused regarding these both. what is the difference between the usage of android:gravity and android:layout_gravity?
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May 14, 2009
What is the difference between those attributes? According to the documentation of R.attr, there isn't any difference (doc text is exactly the same, see http://developer.android.com/reference/android/R.attr.html), but apparently, that's simply not true. For example, the gravity attribute can be used on EditText to set the text alignment (e.g. left, center, right).
I often found that neither of them work to align a view at all. For example, I need to float two text views in a relative layout, one going to the left below a title bar, the other going to the right below the title bar. So what I did was this:
CODE:...............
That doesn't work, however. The left text is indeed aligned to the left inside its parent (the relative layout), but the right text is not aligned to the right; instead, it's placed directly to the right of the left text.
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May 15, 2010
In xml we have android:layout_gravity ... how can i set this for any view [say image button] ... from code ...
CODE:......................
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Nov 16, 2010
The property android:layout_gravity="clip_vertical|horizontal" does the following as mentioned in the sdk documentation:
Additional option that can be set to have the top and/or bottom edges of the child clipped to its container's
bounds. The clip will be based on the vertical gravity: a top gravity will clip the bottom edge, a bottom gravity will clip the top edge, and neither will clip both edges.
But I can't see anything of this in my applications. so what is the purpose of this property exactly ?
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Aug 30, 2010
I'm obviously missing something fundamentally simple here. I have a LinearLayout containing 2 buttons. I've coloured the layout background red so I can see that it has expanded to fill its parent. I wanted the BooButton to center horizontally within the layout and the OtherButton to be right justified. But both buttons are on the left of the layout.
CODE:..................
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May 4, 2009
I need to change it for an imageview that resides in a linearLayout changing it from top to bottom.
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Jan 22, 2010
I have a simple LinearLayout with one TextView and one ImageView. I want the text in the TextView to be aligned to the right, but the result show that the Text was aligned to the left.
Is there anything wrong with my layout xml?
CODE:...............
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May 31, 2010
I would like to know if is there a way to call android:layout_gravity property from a java method. I didn't found any method in Android documentation to do it. This is the picture of the layout I want to implement: But in my situation, I need to do it through Java code, because I'll implement another layout views dinamically. To avoid merging xml layout with Java code, I would prefer make all layout using Java. Code...
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Aug 7, 2010
I have htc evo 4G with sprint and this is the software information
droid 2.1-update1
baseband: 2.05.00
Kernel: 2.6.29
software number: 1.47
PRL version: 60667
and i've been trying to root this so i can use other application and wifi tether however everytime i tried i always get this error " MAIN FOLDER IS OLDER , MAIN UPDATE FAIL!"
I used unrevoked - does not work then i restore to factory setting THEN i tried simpleroot get message Main Folder is older, main update fail!. I also have tried to do Restart the PHONE and press the power button and hold the volume button up (but i have upload the PC36IMG.ZIP before i reboot) THIS does not work either get same message.
IF anyone can help me with this root and PM me your PAYPAL i willing to pay $10 to give me detail instruction (step by step how to get this root)
After rooter i need to know if possible to update somehow to get my FLASH working or it have to be update to droid 2.2 (if i update to 2.2 after rooted, will it lose all my rooted previously assuming its already successfully rooted)
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Aug 27, 2009
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Sep 1, 2010
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Feb 12, 2009
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Mar 15, 2009
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Mar 31, 2009
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Aug 2, 2009
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Jul 2, 2010
I am new to android development, also new to java. I have many years of experience with OO PHP, so it's not hard for me to quickly learn Java and Android, but I still don't know many things like Thread class. I just started developing a simple app. What I want to do is that when a button is clicked, then the TextView is update in this way: the background is changed to black (by default it's set to white) Then it should wait a half a second and then set the background back to white and update the text inside the TextView
Here is my code, it's inside my Activity class:
public synchronized void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.btnPlay: showNewDraw(); break; } protected void showNewDraw() { textResult.setBackgroundColor(Color.BLACK); textResult.setText("Before sleep"); try { Thread.sleep(500); } catch (Exception e) { textResult.setText("Something wrong"); } textResult.setBackgroundColor(Color.WHITE); textResult.setText("After sleep"); }
The way it works now is that it seems to actually take 1/2 second from the time the button is pressed and text is updated, but the background is not reset to black and back to white - it always stays white. Either it is being set to black and instantly reset to white or it's just never set to black. What should I do in order for the "delay" effect to work?
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