[android-developers] How to observe a cursor
I'm not clear on how a custom view implementation can observe changes to an adapter, and I'm having trouble finding an example. I understand how to do this with a ListView, etc, but how to do it with my own custom scroll view ??? -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [android-developers] setLayoutParams stops working
right, so using an animation is another approach I have notes about. The idea there is to use a Scroller to perform callback animating for the various changes that are needed as the scroll happens, right? The things is, it's not like I have any issues with the current approach, except that the values for the layout params get stuck. And I do need the layoutparams to change anyway, since the horizontal linear layout needs to adjust based on the changing sizes of the items. So wouldn't I just be setting layout params in your approach as well, so would I have any expectation of this same flaky behavior not showing up? -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] setLayoutParams stops working
I'm using setLayoutParams on some images in a HorizontalScrollView to
change their size as they scroll past. This seems to work fine, until I
hit one of the boundaries, then all the imageViews stop responding to
setLayoutParams. They are locked in at their last size. Monitoring my
code, I can absolutely see that there are no errors being thrown and that
setLayoutParams is definitely being called with changing values, just like
before they got locked in. The UI, which continuing to scroll, is just
refusing to update my layout params on this ImageView now.
Very frustrating.. Any ideas what's going on here?
int iWidth = (int) (scale * 108 * getResources().getDisplayMetrics().
density);
int iHeight = (int) (scale * 56 * getResources().getDisplayMetrics().
density);
if(r == R.id.imageView5){
//Log.v(LOCATION, String.valueOf(imageViewCenter) );
//Log.v(OFFSET, String.valueOf(offset));
//Log.v(RATIO, String.valueOf(ratio));
//Log.v(SCALE, String.valueOf(scale));
Log.v(DIMS, String.valueOf(iWidth) + : + String.valueOf(iHeight) );
}
LinearLayout.LayoutParams layoutParams =
(android.widget.LinearLayout.LayoutParams) iv.getLayoutParams();
layoutParams.height = iHeight;
layoutParams.width = iWidth;
iv.setLayoutParams(layoutParams);
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[android-developers] Re: setLayoutParams stops working
Full relevant code:
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
super.onScrollChanged(l, t, oldl, oldt);
//Log.v(SCROLL, String.valueOf(l));
adjustImageSizes();
}
private void adjustImageSizes(){
int width = getWidth();
int[] views = { R.id.imageView1, R.id.imageView2, R.id.imageView3, R.id.
imageView4, R.id.imageView5 };
for(int r : views){
ImageView iv = (ImageView) findViewById(r);
int[] location = new int[2];
iv.getLocationOnScreen(location);
int imageViewCenter = location[0] + 108 / 2; // This can be calculated
for each imageView that is on screen
if(imageViewCenter 0){
imageViewCenter = 0;
}
if(imageViewCenter width){
imageViewCenter = width;
}
int scrollerCenter = (getWidth() - getPaddingLeft() - getPaddingRight())
/ 2 + getPaddingLeft();
float offset = Math.abs(scrollerCenter - imageViewCenter);
float ratio = ( offset / ( width / 2) );
// Scale the size.
float scale = .5f + (1.0f - ratio) / 2;
if (scale = 0) {
scale = 0.1f;
}
int iWidth = (int) (scale * 108 * getResources().getDisplayMetrics().
density);
int iHeight = (int) (scale * 56 * getResources().getDisplayMetrics().
density);
if(r == R.id.imageView5){
//Log.v(LOCATION, String.valueOf(imageViewCenter) );
//Log.v(OFFSET, String.valueOf(offset));
//Log.v(RATIO, String.valueOf(ratio));
//Log.v(SCALE, String.valueOf(scale));
Log.v(DIMS, String.valueOf(iWidth) + : + String.valueOf(iHeight) );
}
LinearLayout.LayoutParams layoutParams =
(android.widget.LinearLayout.LayoutParams) iv.getLayoutParams();
layoutParams.height = iHeight;
layoutParams.width = iWidth;
iv.setLayoutParams(layoutParams);
//iv.getLayoutParams().height = iHeight;
//iv.getLayoutParams().width = iWidth;
}
}
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[android-developers] Custom album scroller for Android
Greetings! I'm trying to implement something like the 'music album scroller' interface in iTunes, but on an Android device. I've attached an image that describes the interface I'm looking for. Has anyone see an open source implementation of something similar, or what would an ideal approach / pattern look like for this? https://lh4.googleusercontent.com/-BVqwsN6WAqc/UcDjCnNRGeI/ADc/CXXYtr7JsSA/s1600/Screen+Shot+2013-06-18+at+3.42.43+PM.png -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
