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POSwitch text between EditTexts during TranslateAnimation
 

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  1. POSwitch text between EditTexts during TranslateAnimation
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    <p>I have a vertically-oriented LinearLayout (inside a ScrollView) that holds dynamically created Views. Each of these Views contain an EditText. As an option, I would like the user to be able to reorder these Views. </p> <p>For the reordering, I am providing an UP and a DOWN button. This works great. The animation is smooth and gives the expected output.</p> <p><strong>Setup:</strong></p> <p>The animation is just a visual feedback: I am <em>NOT</em> reordering the Views. I'm only switching the data between two EditTexts. For example:</p> <pre><code>View1 ==== EditText1 ==== TextData1 View2 ==== EditText2 ==== TextData2 </code></pre> <p>When the animation ends:</p> <pre><code>View1 ==== EditText1 ==== TextData2 View2 ==== EditText2 ==== TextData1 </code></pre> <p><strong>The Problem:</strong></p> <p>I am currently switching the <code>EditText.getText().toString()</code> values in <code>onAnimationEnd(Animation)</code>. This isn't smooth at all. The best I can do to describe the effect: <code>flicker</code>. There's a flicker when the values are switched. </p> <p>Is there any way to avoid this? </p> <p><strong>TranslateAnimation:</strong></p> <pre><code>static TranslateAnimation translate(float fromX, float toX, float fromY, float toY, int ms) { TranslateAnimation transAnim = new TranslateAnimation(fromX, toX, fromY, toY); transAnim.setDuration(ms); return transAnim; } </code></pre> <p>How the animation is being applied:</p> <pre><code>// Animate viewToMove to move to viewToReplace's position TranslateAnimation ta = Utils.translate(0, 0, 0, -viewToReplace.getHeight(), 2000); // Animate viewToReplace to move to viewToMove's position TranslateAnimation ta2 = Utils.translate(0, 0, 0, viewToMove.getHeight(), 2000); // AnimationListener ta.setAnimationListener(new AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationRepeat(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { // Grab the text that is held by viewToMove's EditText String temp = ((EditText) (viewToMove.findViewById(R.id.etListItemText))).getText(). toString(); // Set viewToMove's EditText to show contents of viewToReplace's EditText ((EditText) (viewToMove.findViewById(R.id.etListItemText))). setText(((EditText) (viewToReplace. findViewById(R.id.etListItemText))). getText().toString()); // Set viewToReplace's EditText contents ((EditText) (viewToReplace.findViewById(R.id.etListItemText))). setText(temp); } }); // Start animations viewToMove.startAnimation(ta); viewToReplace.startAnimation(ta2); </code></pre>
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