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import android.os.Handler; import android.view.View; import android.view.animation.Animation; import android.view.animation.TranslateAnimation; public class AnimationUtil { /** * 从控件所在位置移动到控件的底部 * * @return */ public static TranslateAnimation moveToViewBottom() { TranslateAnimation mHiddenAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 1.0f); mHiddenAction.setDuration(1000); return mHiddenAction; } /** * 从控件的底部移动到控件所在位置 * * @return */ public static TranslateAnimation moveToViewLocation() { TranslateAnimation mHiddenAction = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF, 1.0f, Animation.RELATIVE_TO_SELF, 0.0f); mHiddenAction.setDuration(1000); return mHiddenAction; } public static void showView(View view){ view.setVisibility(View.VISIBLE); view.setAnimation(AnimationUtil.moveToViewLocation()); } public static void hideView(final View view){ view.setAnimation(AnimationUtil.moveToViewBottom()); new Handler().postDelayed(new Runnable() { @Override public void run() { view.setVisibility(View.GONE); } }, 1000); } }
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