Layout erweitern Animation

Question

Ich habe das Layout Animation mit dem folgenden Code erweitern. Es funktioniert gut, wenn wir die Animation durch Klicken auf eine Textansicht aufrufen, aber das gleiche passiert nicht, wenn ich versuche, dies durch Klicken auf ein Layout zu tun. Kann mir jemand helfen, das zu lösen?

LinearLayout hello= (LinearLayout)findViewById(R.id.lin_hello); 
final RelativeLayout rel=(RelativeLayout)findViewById(R.id.rel_nah_hide); 
hello.setOnClickListener(new OnClickListener() {   
    @Override 
    public void onClick(View v) { 
     expand=!expand; 
     Animation a=expand(rel, expand); 
     rel.setAnimation(a); 
     a.start(); 
    } 
}); 

public static Animation expand(final View v, final boolean expand) { 
    try { 
     Method m = v.getClass().getDeclaredMethod("onMeasure", int.class, int.class); 
     m.setAccessible(true); 
     m.invoke(v, 
       MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 
       MeasureSpec.makeMeasureSpec(((View)v.getParent()).getMeasuredWidth(), MeasureSpec.AT_MOST) 
     ); 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 

    final int initialHeight = v.getMeasuredHeight(); 

    if (expand) { 
     v.getLayoutParams().height = 0; 
    } else { 
     v.getLayoutParams().height = initialHeight; 
    } 
    v.setVisibility(View.VISIBLE); 

    Animation a = new Animation() { 
     @Override 
     protected void applyTransformation(float interpolatedTime, Transformation t) { 
      int newHeight = 0; 
      if (expand) { 
       newHeight = (int) (initialHeight * interpolatedTime); 
      } else { 
       newHeight = (int) (initialHeight * (1 - interpolatedTime)); 
      } 
      v.getLayoutParams().height = newHeight; 
      v.requestLayout(); 

      if (interpolatedTime == 1 && !expand) 
       v.setVisibility(View.GONE); 
     } 

     @Override 
     public boolean willChangeBounds() { 
      return true; 
     } 
    }; 

    a.setDuration(SPEED_ANIMATION_TRANSITION); 
    a.setAnimationListener(new AnimationListener(){ 
     @Override 
     public void onAnimationEnd(Animation arg0) { 
      animWorkingFlag=false; 
     } 

     @Override 
     public void onAnimationRepeat(Animation animation) { 
      // TODO Auto-generated method stub 
     } 

     @Override 
     public void onAnimationStart(Animation animation) { 
      animWorkingFlag=true; 
     } 
    }); 

    return a; 
} 

und finden Sie die XML-Layout,

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" > 
    <LinearLayout 
     android:id="@+id/lin_hello" 
     android:layout_height="50dp" 
     android:layout_width="fill_parent" 
     android:orientation="vertical"> 
     <TextView 
      android:id="@+id/hello" 
      android:layout_height="50dp" 
      android:layout_width="fill_parent" 
      android:text="Nah" 
      android:gravity="center" 
      android:background="#F03535"/> 
    </LinearLayout> 

    <RelativeLayout 
     android:id="@+id/rel_nah_hide" 
     android:layout_height="wrap_content" 
     android:layout_width="fill_parent"> 
     <TextView 
      android:id="@+id/txt_nah_hide1" 
      android:layout_height="50dp" 
      android:layout_width="fill_parent" 
      android:text="Incorrect Name/Address" 
      android:gravity="center" 
      android:textColor="@color/white"/> 
     <TextView 
      android:id="@+id/txt_nah_hide2" 
      android:layout_height="50dp" 
      android:layout_width="fill_parent" 
      android:text="Venue is closed" 
      android:gravity="center" 
      android:textColor="@color/white" 
      android:layout_below="@id/txt_nah_hide1"/> 
     <TextView 
      android:id="@+id/txt_nah_hide3" 
      android:layout_height="50dp" 
      android:layout_width="fill_parent" 
      android:text="Venue is duplicate" 
      android:gravity="center" 
      android:textColor="@color/white" 
      android:layout_below="@id/txt_nah_hide2"/> 
    </RelativeLayout> 

    <TextView 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:textSize="28dp" 
     android:text="heelo2222"/> 
</LinearLayout> 

Answer 1

Benutzen Sie den Code nächsten Teil: ->

View hello= findViewById(R.id.lin_hello); 
final RelativeLayout rel=(RelativeLayout)findViewById(R.id.rel_nah_hide); 
hello.setOnClickListener(new OnClickListener() {   
    @Override 
    public void onClick(View v) { 
     expand=!expand; 
     Animation a=expand(rel, expand); 
     rel.setAnimation(a); 
     a.start(); 
    } 
});