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/**
* Component for creating an Accordion
* and manage it
*/
public class Accordion {
// Current ID showed in the layout
public int currentId;
// Description to show
public TextView show;
// Description to hide
public TextView hide;
// Constructor
// We create everything for the accordion here
// For each element, we will create 2 component
// - 1 text view for title
// - 1 text view for description
// The objective is to show always all names and show/hide wanted descriptions
public Accordion(Activity activity, final LinearLayout layout, List<java.util.Map<String, String>> mElement) {
// For being sure we don't cut other ids, we begin at 101 (normally, the layout don't have other things than the accordion
int id = 100;
boolean first = true;
for (java.util.Map<String, String> currentElement : mElement) {
// Title
TextView tvTitle = new TextView(activity);
tvTitle.setText( currentElement.get( "name" );
tvTitle.setId(id ++);
tvTitle.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, 0, 1f) );
tvTitle.setPadding(1, 1, 1, 0);
tvTitle.setBackgroundColor(000000);
// Click listener for the title
// This listener will permit to show/hide the component of the accordion according to the layout and his position
tvTitle.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
// If we click on the current title, we don't do nothing
if ( (v.getId() + 1) == currentId ) {
return;
}
// We put an animation for hiding the current description
hide = (TextView)layout.findViewById(currentId);
AlphaAnimation hiding = new AlphaAnimation(1, 0);
hiding.setDuration(1000);
hide.setAnimation(hiding);
// If the current description is before the click one, we will getting up every object between
if (currentId < v.getId()) {
TranslateAnimation animationToHide = new TranslateAnimation(0, 0, 0, -hide.getHeight());
animationToHide.setDuration(1000);
animationToHide.setAnimationListener(myAnimationListener);
// For each between the wanted description and the current showed one
// We will create a translation for getting up the objects
for (int i = (currentId + 1) ; i < (v.getId() + 1) ; i ++ ) {
TextView currentTv = (TextView)layout.findViewById(i);
currentTv.setAnimation(animationToHide);
}
// Else, we will getting down every object between
} else {
TranslateAnimation animationToHide = new TranslateAnimation(0, 0, 0, hide.getHeight());
animationToHide.setDuration(1000);
animationToHide.setAnimationListener(myAnimationListener);
// For each between the wanted description and the current showed one
// We will create a translation for getting down the objects
for (int i = (v.getId() + 2) ; i < (currentId + 1) ; i ++ ) {
TextView currentTv = (TextView)layout.findViewById(i);
// If the one here is text view to hide, we set the 2 animations of it
if (currentTv.getId() == hide.getId()) {
AnimationSet set = new AnimationSet(false);
set.addAnimation(hiding);
set.addAnimation(animationToHide);
hide.setAnimation(set);
} else {
currentTv.setAnimation(animationToHide);
}
}
}
show = (TextView)layout.findViewById(v.getId() + 1);
currentId = v.getId() + 1;
}
});
layout.addView(tvTitle);
// Description
TextView tvDesc = new TextView(activity);
tvDesc.setId(id ++);
tvDesc.setText( currentElement.get( "description" ) );
// If it is the, we show it to the user
if (first) {
tvDesc.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, 0, 5f) );
currentId = tvDesc.getId();
first = false;
} else {
tvDesc.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, 0, 0f) );
}
layout.addView(tvDesc);
}
}
// Animation listener, it permits to reorganize all fields after the animation of accordion
AnimationListener myAnimationListener = new AnimationListener() {
public void onAnimationEnd(Animation arg0) {
// We hide the wanted view and show the other
show.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, 0, 5f) );
hide.setLayoutParams( new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, 0, 0f) );
// Alpha animation for showing the new view
AlphaAnimation showing = new AlphaAnimation(0, 1);
showing.setDuration(500);
show.setAnimation(showing);
}
public void onAnimationRepeat(Animation arg0) { }
public void onAnimationStart(Animation arg0) { }
};
} |
