Created
July 13, 2012 22:27
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Stagger LayoutTransitions in Android
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package com.arpit.animatortest; | |
import android.animation.AnimatorSet; | |
import android.animation.LayoutTransition; | |
import android.animation.ObjectAnimator; | |
import android.app.Activity; | |
import android.graphics.Color; | |
import android.os.Bundle; | |
import android.view.Menu; | |
import android.view.View; | |
import android.widget.LinearLayout; | |
import android.widget.TextView; | |
public class AnimationTest extends Activity { | |
@Override | |
public void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_animation_test); | |
LinearLayout l = (LinearLayout)findViewById(R.id.ll); | |
LayoutTransition transition = new LayoutTransition(); | |
ObjectAnimator a1 = ObjectAnimator.ofFloat(null, View.SCALE_X, 0, 1); | |
ObjectAnimator a2 = ObjectAnimator.ofFloat(null, View.SCALE_Y, 0, 1); | |
ObjectAnimator a3 = ObjectAnimator.ofFloat(null, View.ALPHA, 0, 1); | |
AnimatorSet animator= new AnimatorSet(); | |
animator.setStartDelay(0); | |
animator.playTogether(a1, a2, a3); | |
transition.setAnimator(LayoutTransition.APPEARING, animator); | |
transition.setStagger(LayoutTransition.CHANGE_APPEARING, 1000); | |
transition.setStagger(LayoutTransition.CHANGE_DISAPPEARING, 1000); | |
transition.setStagger(LayoutTransition.APPEARING, 1000); | |
transition.setStagger(LayoutTransition.DISAPPEARING, 1000); | |
transition.setDuration(5000); | |
l.setLayoutTransition(transition); | |
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, 100); | |
for(int i=0; i<5; i++){ | |
TextView t = new TextView(this); | |
t.setBackgroundColor(Color.RED); | |
t.setText("Hello "+i); | |
t.setLayoutParams(params); | |
l.addView(t); | |
} | |
} | |
@Override | |
public boolean onCreateOptionsMenu(Menu menu) { | |
getMenuInflater().inflate(R.menu.activity_animation_test, menu); | |
return true; | |
} | |
} |
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