hi
I am A Beginner for Android.i created a Layout with 2 views. if i drag
second layout to top my second layout height should increase.at the same
time my first layout size should deicer.
(the height changes are based on Drag how much i graded) please help me in
this.thanks in advance.
my code is like this:
public class DragActivity extends Activity implements View.OnTouchListener {
LinearLayout clFirstLayout, clSecoundLayout, clMainLayout;
ScrollView clScroolView;
/* private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;*/
private static final int SWIPE_THRESHOLD = 50;
private static final int SWIPE_VELOCITY_THRESHOLD = 50;
private GestureDetector gestureDetector;
View.OnTouchListener gestureListener;
ActionMode actionMode;
private float newX = 0;
private float newY = 0;
private float oldX = 0;
private float oldY = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
clScroolView = new ScrollView(this);
LinearLayout.LayoutParams parms = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
clScroolView.setLayoutParams(parms);
clMainLayout = new LinearLayout(this);
LinearLayout.LayoutParams mainParms = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT);
mainParms.setMargins(5, 5, 5, 5);
clMainLayout.setLayoutParams(mainParms);
clMainLayout.setOrientation(LinearLayout.VERTICAL);
clFirstLayout = new LinearLayout(this);
LinearLayout.LayoutParams firstParms = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 500, 0.5f);
firstParms.setMargins(20, 20, 20, 20);
clFirstLayout.setGravity(Gravity.CENTER);
clFirstLayout.setBackgroundColor(Color.parseColor("#80F44336"));
clFirstLayout.setBackgroundColor(Color.TRANSPARENT);
clFirstLayout.setLayoutParams(firstParms);
clFirstLayout.setId(R.id.first);
clFirstLayout.setOrientation(LinearLayout.VERTICAL);
TextView text = new TextView(this);
LinearLayout.LayoutParams txtParms = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
txtParms.setMargins(5, 5, 5, 5);
text.setText("Firsst View");
text.setGravity(Gravity.CENTER);
text.setLayoutParams(txtParms);
clFirstLayout.addView(text);
clSecoundLayout = new LinearLayout(this);
LinearLayout.LayoutParams secound = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 500, 0.5f);
clSecoundLayout.setGravity(Gravity.CENTER);
clSecoundLayout.setLayoutParams(secound);
clSecoundLayout.setBackgroundColor(Color.LTGRAY);
clSecoundLayout.setId(R.id.frame);
clSecoundLayout.setOrientation(LinearLayout.VERTICAL);
TextView tvtext = new TextView(this);
LinearLayout.LayoutParams tvtextParms = new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
tvtextParms.setMargins(5, 5, 5, 5);
tvtext.setText("Secound View");
tvtext.setGravity(Gravity.CENTER);
tvtext.setLayoutParams(tvtextParms);
clSecoundLayout.addView(tvtext);
clMainLayout.addView(clFirstLayout);
clMainLayout.addView(clSecoundLayout);
setContentView(clMainLayout);
/* clFirstLayout.setOnDragListener(new MyDragListener());
clSecoundLayout.setOnDragListener(new MyDragListener());*/
clFirstLayout.setOnTouchListener(this);
clSecoundLayout.setOnTouchListener(this);
// clSecoundLayout.setOnTouchListener(new View.OnTouchListener() {
// @Override
// public boolean onTouch(View view, MotionEvent motionEvent) {
// return false;
// }
// });
}
float dX, dY;
int iTotalHeight,iHeight;
@Override
public boolean onTouch(View view, MotionEvent event) {
int width = 0, height = 0;
/* width = v.getWidth() / 2;
height = v.getHeight() / 2;*/
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
oldX = view.getX() - event.getRawX();
oldY = view.getY() - event.getRawY();
break;
case MotionEvent.ACTION_MOVE:
newX = event.getX();
newY = event.getY();
dX = view.getX() - event.getRawX();
dY = view.getY() - event.getRawY();
iHeight = view.getHeight();
iTotalHeight =
getWindowManager().getDefaultDisplay().getHeight();
View.DragShadowBuilder shadowBuilder = new
View.DragShadowBuilder(null);
view.setOnDragListener(new MyDragListener());
view.startDrag(null, shadowBuilder, view, 0);
view.setOnDragListener(new MyDragListener());
view.setMinimumHeight((int) dX);
break;
default:
return false;
}
return true;
}
// end of dx==0 if
/*lse{
if(newX>oldX){
if(dX>0){
AbsoluteLayout.LayoutParams params = (AbsoluteLayout.LayoutParams)
v.getLayoutParams();
//
relativeLayoutcircleView.getLayoutParams().height=relativeLayoutcircleView.getHeight()-50;
v.getLayoutParams().width=v.getWidth()-Math.abs((int)dX);
v.setLayoutParams(params);
}
*/
private void setHeight(float fX,float fY)
{
int iFirstHeight,iSecoungHeight;
iFirstHeight=clFirstLayout.getHeight()/2-(int) fX;
// iSecoungHeight=clSecoundLayout.getHeight()-Math.abs((int) fY);
iSecoungHeight=clFirstLayout.getHeight()/2-Math.abs((int)fY);
//
clSecoundLayout.getLayoutParams().height=clSecoundLayout.getHeight()+iSecoungHeight;
clSecoundLayout.getLayoutParams().height=clSecoundLayout.getHeight()+(int)fY;
/* if(clSecoundLayout.getLayoutParams().height>700)
clSecoundLayout.getLayoutParams().height=700;*/
clFirstLayout.getLayoutParams().height=clFirstLayout.getHeight()-iSecoungHeight;
//
clFirstLayout.getLayoutParams().height=Math.abs(iTotalHeight-clSecoundLayout.getHeight());
/* clSecoundLayout.setLayoutParams(new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,clSecoundLayout.getHeight()+iFirstHeight));
clFirstLayout.setLayoutParams(new
LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,clFirstLayout.getHeight()-iFirstHeight))*/;
clSecoundLayout.invalidate();
clFirstLayout.invalidate();
}
class MyDragListener implements View.OnDragListener {
/* Drawable enterShape =
getResources().getDrawable(R.drawable.shape_droptarget);
Drawable normalShape = getResources().getDrawable(R.drawable.shape);
*/
@Override
public boolean onDrag(View v, DragEvent event) {
int action = event.getAction();
float fX,fY;
ViewGroup viewgroup = (ViewGroup) v.getParent();
v.invalidate();
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
oldX = event.getX();
oldY = event.getY();
// setHeight(dX,dY);
viewgroup.invalidate();
break;
case DragEvent.ACTION_DRAG_ENTERED:
viewgroup.invalidate();
// setHeight(dX,dY);
break;
case DragEvent.ACTION_DRAG_LOCATION:
newX = event.getX();
newY = event.getY();
dX=newX-oldX;
dY=newY-oldY;
setHeight(dX,dY);
break;
case DragEvent.ACTION_DROP:
newX = event.getX();
newY = event.getY();
dX=newX-oldX;
dY=newY-oldY;
// setHeight(dX,dY);
break;
case DragEvent.ACTION_DRAG_ENDED:
// v.setBackgroundDrawable(normalShape);
default:
break;
}
return true;
}
}
}
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