Slidedown and slideup layout with animation

Question

how can I display a layout in the center with slideUp when I press the button, and press again to hide ... slideDown in ANDROID

help me with that, thnkss

Answer 1

Create two animation xml under res/anim folder

slide_down.xml

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" >  <translate     android:duration="1000"     android:fromYDelta="0"     android:toYDelta="100%" /> </set> 

slide_up.xml

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" >  <translate     android:duration="1000"     android:fromYDelta="100%"     android:toYDelta="0" /> </set> 

Load animation Like bellow Code and start animation when you want According to your Requirement

//Load animation  Animation slide_down = AnimationUtils.loadAnimation(getApplicationContext(),             R.anim.slide_down);  Animation slide_up = AnimationUtils.loadAnimation(getApplicationContext(),             R.anim.slide_up);  // Start animation linear_layout.startAnimation(slide_down);  

Answer 2

I use these easy functions, it work like jquery slideUp slideDown, use it in an helper class, just pass your view :

public static void expand(final View v) {     v.measure(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT);     final int targetHeight = v.getMeasuredHeight();      // Older versions of android (pre API 21) cancel animations for views with a height of 0.     v.getLayoutParams().height = 1;     v.setVisibility(View.VISIBLE);     Animation a = new Animation()     {         @Override         protected void applyTransformation(float interpolatedTime, Transformation t) {             v.getLayoutParams().height = interpolatedTime == 1                     ? WindowManager.LayoutParams.WRAP_CONTENT                     : (int)(targetHeight * interpolatedTime);             v.requestLayout();         }          @Override         public boolean willChangeBounds() {             return true;         }     };      // 1dp/ms     a.setDuration((int) (targetHeight / v.getContext().getResources().getDisplayMetrics().density));     v.startAnimation(a); }  public static void collapse(final View v) {     final int initialHeight = v.getMeasuredHeight();      Animation a = new Animation()     {         @Override         protected void applyTransformation(float interpolatedTime, Transformation t) {             if(interpolatedTime == 1){                 v.setVisibility(View.GONE);             }else{                 v.getLayoutParams().height = initialHeight - (int)(initialHeight * interpolatedTime);                 v.requestLayout();             }         }          @Override         public boolean willChangeBounds() {             return true;         }     };      // 1dp/ms     a.setDuration((int)(initialHeight / v.getContext().getResources().getDisplayMetrics().density));     v.startAnimation(a); }