文本框的渐显

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需要两个配置文件，layout_animation_table.xml：

<?xml version="1.0" encoding="utf-8"?><!-- Copyright (C) 2007 The Android Open Source Project     Licensed under the Apache License, Version 2.0 (the "License");     you may not use this file except in compliance with the License.     You may obtain a copy of the License at            http://www.apache.org/licenses/LICENSE-2.0       Unless required by applicable law or agreed to in writing, software     distributed under the License is distributed on an "AS IS" BASIS,     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.     See the License for the specific language governing permissions and     limitations under the License.--><layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"        android:delay="50%"        android:animation="@anim/slide_top_to_bottom" />

和slide_top_to_bottom.xml

<?xml version="1.0" encoding="utf-8"?><!--     Copyright (C) 2007 The Android Open Source Project     Licensed under the Apache License, Version 2.0 (the "License");     you may not use this file except in compliance with the License.     You may obtain a copy of the License at            http://www.apache.org/licenses/LICENSE-2.0       Unless required by applicable law or agreed to in writing, software     distributed under the License is distributed on an "AS IS" BASIS,     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.     See the License for the specific language governing permissions and     limitations under the License.--><set xmlns:android="http://schemas.android.com/apk/res/android"    android:interpolator="@android:anim/accelerate_interpolator" >    <translate        android:duration="100"        android:fromYDelta="-100%"        android:toXDelta="0" />    <alpha        android:duration="50"        android:fromAlpha="0.0"        android:toAlpha="1.0" /></set>

然后在相应的布局上加上：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layoutAnimation="@anim/layout_animation_table"    android:animationCache="false"    android:clipToPadding="false"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" />

就好

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