{"id":50748,"date":"2023-12-23T10:31:41","date_gmt":"2023-12-23T02:31:41","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ae%89%e5%8d%93%e5%8a%a8%e7%94%bb%e7%a4%ba%e4%be%8b\/"},"modified":"2023-12-23T15:20:22","modified_gmt":"2023-12-23T07:20:22","slug":"%e5%ae%89%e5%8d%93%e5%8a%a8%e7%94%bb%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ae%89%e5%8d%93%e5%8a%a8%e7%94%bb%e7%a4%ba%e4%be%8b\/","title":{"rendered":"\u5b89\u5353\u52a8\u753b\u793a\u4f8b"},"content":{"rendered":"<p>Android\u52a8\u753b\u7528\u4e8e\u4e3a\u7528\u6237\u754c\u9762\u63d0\u4f9b\u4e30\u5bcc\u7684\u5916\u89c2\u548c\u611f\u89c9\u3002Android\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u52a8\u753b\u53ef\u4ee5\u901a\u8fc7XML\u6216Android\u4ee3\u7801\u5b9e\u73b0\u3002\u5728\u672cAndroid\u52a8\u753b\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528XML\u4ee3\u7801\u5c06\u52a8\u753b\u6dfb\u52a0\u5230\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002<\/p>\n<h2>\u5b89\u5353\u52a8\u753b<\/h2>\n<p>\u5728Android\u5e94\u7528\u4e2d\uff0c\u52a8\u753b\u662f\u521b\u5efa\u8fd0\u52a8\u548c\u5f62\u72b6\u53d8\u5316\u7684\u8fc7\u7a0b\u3002\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u52a8\u753b\u7684\u57fa\u672c\u65b9\u6cd5\uff1a<\/p>\n<ol>\u6e10\u5165\u52a8\u753b<br \/>\n\u6e10\u51fa\u52a8\u753b<br \/>\n\u4ea4\u53c9\u6de1\u5165\u6de1\u51fa\u52a8\u753b<br \/>\n\u95ea\u70c1\u52a8\u753b<br \/>\n\u653e\u5927\u52a8\u753b<br \/>\n\u7f29\u5c0f\u52a8\u753b<br \/>\n\u65cb\u8f6c\u52a8\u753b<br \/>\n\u79fb\u52a8\u52a8\u753b<br \/>\n\u5411\u4e0a\u6ed1\u52a8\u52a8\u753b<br \/>\n\u5411\u4e0b\u6ed1\u52a8\u52a8\u753b<br \/>\n\u5f39\u8df3\u52a8\u753b<br \/>\n\u5e8f\u5217\u52a8\u753b<br \/>\n\u540c\u65f6\u52a8\u753b<\/ol>\n<h3>Android\u52a8\u753b\u793a\u4f8bXML<\/h3>\n<p>\u6211\u4eec\u5728res\u6587\u4ef6\u5939\u4e0b\u521b\u5efa\u4e86\u4e00\u4e2a\u8d44\u6e90\u76ee\u5f55\uff0c\u540d\u4e3aanim\uff0c\u7528\u4e8e\u5b58\u653e\u5305\u542b\u52a8\u753b\u903b\u8f91\u7684\u6240\u6709xml\u6587\u4ef6\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8bxml\u6587\u4ef6\uff0c\u5c55\u793a\u4e86Android\u52a8\u753b\u7684\u4ee3\u7801\u903b\u8f91\u3002sample_animation.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;\r\n&lt;scale xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n  android:interpolator=\"@android:anim\/accelerate_decelerate_interpolator\"\r\n  android:duration=\"300\"\r\n  android:fillAfter=\"true\"\r\n  android:fromXScale=\"0.0\"\r\n  android:fromYScale=\"0.0\"\r\n  android:toXScale=\"1.0\"\r\n  android:toYScale=\"1.0\" \/&gt;\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li>\nandroid:interpolator : It is the rate of change in animation. We can define our own interpolators using the time as the constraint. In the above xml code an inbuilt interpolator is assigned\n<\/li>\n<li>\nandroid:duration : Duration of the animation in which the animation should complete. It is 300ms here. This is generally the ideal duration to show the transition on the screen. The start and end of the animation are set using:<br \/>\nandroid:fromTRANSFORMATION<br \/>\nandroid:toTRANSFORMATION<\/p>\n<\/li>\n<li>\nTRANSFORMATION : is the transformation that we want to specify. In our case we start with an x and y scale of 0 and end with an x and y scale of 1\n<\/li>\n<li>\nandroid:fillAfter : property specifies whether the view should be visible or hidden at the end of the animation. We\u2019ve set it visible in the above code. If it sets to false, the element changes to its previous state after the animation\n<\/li>\n<li>\nandroid:startOffset : It is the waiting time before an animation starts. This property is mainly used to perform multiple animations in a sequential manner\n<\/li>\n<li>\nandroid:repeatMode : This is useful when you want the animation to be repeat\n<\/li>\n<li>\nandroid:repeatCount : This defines number of repetitions on animation. If we set this value to infinite then animation will repeat infinite times\n<\/li>\n<\/ul>\n<h3>\u5f53\u7528\u6237\u754c\u9762\u5c0f\u90e8\u4ef6\u88ab\u70b9\u51fb\u65f6\uff0c\u52a0\u8f7d\u52a8\u753b<\/h3>\n<p>\u6211\u4eec\u7684\u76ee\u6807\u662f\u5728\u4efb\u4f55\u5c0f\u90e8\u4ef6\uff08\u6bd4\u5982 TextView\uff09\u88ab\u70b9\u51fb\u65f6\u663e\u793a\u52a8\u753b\u3002\u4e3a\u6b64\u6211\u4eec\u9700\u8981\u4f7f\u7528 Animation \u7c7b\u3002\u901a\u8fc7\u8c03\u7528 loadAnimation() \u51fd\u6570\uff0c\u4f7f\u7528 AnimationUtils \u7c7b\u52a0\u8f7d\u5305\u542b\u52a8\u753b\u903b\u8f91\u7684 xml \u6587\u4ef6\u3002\u4ee5\u4e0b\u4ee3\u7801\u7247\u6bb5\u5c55\u793a\u4e86\u8fd9\u4e2a\u5b9e\u73b0\u3002<\/p>\n<pre class=\"post-pre\"><code>Animation animation;\r\nanimation = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.sample_animation);\r\n<\/code><\/pre>\n<p>\u4e3a\u4e86\u5f00\u59cb\u52a8\u753b\uff0c\u6211\u4eec\u9700\u8981\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u7247\u6bb5\u4e2d\u8c03\u7528startAnimation()\u51fd\u6570\u6765\u5904\u7406UI\u5143\u7d20\u3002<\/p>\n<pre class=\"post-pre\"><code>sampleTextView.startAnimation(animation);\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u901a\u8fc7\u5c06\u52a8\u753b\u7c7b\u578b\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u6765\u5bf9\u6587\u672c\u89c6\u56fe\u7ec4\u4ef6\u8fdb\u884c\u52a8\u753b\u64cd\u4f5c\u3002<\/p>\n<h3>\u8bbe\u7f6e\u52a8\u753b\u76d1\u542c\u5668<\/h3>\n<p>\u53ea\u6709\u5728\u6211\u4eec\u5e0c\u671b\u76d1\u542c\u4e8b\u4ef6\uff0c\u5982\u5f00\u59cb\u3001\u7ed3\u675f\u6216\u91cd\u590d\u65f6\u624d\u9700\u8981\u8fd9\u6837\u505a\u3002\u4e3a\u6b64\uff0c\u6d3b\u52a8\u5fc5\u987b\u5b9e\u73b0AnimationListener\uff0c\u5e76\u9700\u8981\u91cd\u5199\u4ee5\u4e0b\u65b9\u6cd5\u3002<\/p>\n<ul class=\"post-ul\">\n<li>onAnimationStart : This will be triggered once the animation started<\/li>\n<li>onAnimationEnd : This will be triggered once the animation is over<\/li>\n<li>onAnimationRepeat : This will be triggered if the animation repeats<\/li>\n<\/ul>\n<h3>\u5b89\u5353\u52a8\u753b\u9879\u76ee\u7ed3\u6784\u3002<\/h3>\n<p>\u5982\u60a8\u6240\u89c1\uff0c\u6211\u4eec\u5df2\u5305\u542b\u4e86\u4e0a\u8ff0\u6240\u6709\u4e3b\u8981\u7c7b\u578b\u52a8\u753b\u7684XML\u6587\u4ef6\u3002<\/p>\n<h3>Android\u52a8\u753b\u793a\u4f8b\u7684XML\u4ee3\u7801<\/h3>\n<p>\u8fd9\u91cc\u6211\u63d0\u4f9b\u4e86\u5927\u90e8\u5206\u5e38\u89c1\u7684Android\u52a8\u753b\u7684\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n<h3>\u6de1\u5165\u52a8\u753b <\/h3>\n<p>\u6de1\u5165.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\" &gt;\r\n\r\n    &lt;alpha\r\n        android:duration=\"1000\"\r\n        android:fromAlpha=\"0.0\"\r\n        android:interpolator=\"@android:anim\/accelerate_interpolator\"\r\n        android:toAlpha=\"1.0\" \/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u7684alpha\u6307\u7684\u662f\u4e00\u4e2a\u7269\u4f53\u7684\u4e0d\u900f\u660e\u5ea6\u3002\u5177\u6709\u8f83\u4f4ealpha\u503c\u7684\u7269\u4f53\u66f4\u900f\u660e\uff0c\u800c\u5177\u6709\u8f83\u9ad8alpha\u503c\u7684\u7269\u4f53\u5219\u8f83\u4e0d\u900f\u660e\uff0c\u66f4\u4e0d\u6613\u7a7f\u900f\u3002\u6de1\u5165\u52a8\u753b\u5c31\u662f\u5c06alpha\u503c\u4ece0\u589e\u52a0\u52301\u3002<\/p>\n<h3>\u6e10\u53d8\u52a8\u753b<\/h3>\n<p>\u6e10\u53d8\u6d88\u5931.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\" &gt;\r\n\r\n    &lt;alpha\r\n        android:duration=\"1000\"\r\n        android:fromAlpha=\"1.0\"\r\n        android:interpolator=\"@android:anim\/accelerate_interpolator\"\r\n        android:toAlpha=\"0.0\" \/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u6de1\u51fa\u52a8\u753b\u4e0e\u6de1\u5165\u52a8\u753b\u5b8c\u5168\u76f8\u53cd\uff0c\u9700\u8981\u5c06\u900f\u660e\u5ea6\u4ece1\u51cf\u5c11\u52300\u3002<\/p>\n<h3>\u4ea4\u53c9\u6de1\u5165\u6de1\u51fa\u52a8\u753b<\/h3>\n<p>\u5728MainActivity.java\u4e2d\u8ba8\u8bba\u7684\u4ee3\u7801\u4e2d\uff0c\u4ea4\u53c9\u6de1\u5165\u6de1\u51fa\u662f\u5728\u4e00\u4e2aTextView\u4e0a\u6267\u884c\u6de1\u5165\u52a8\u753b\uff0c\u540c\u65f6\u53e6\u4e00\u4e2aTextView\u9010\u6e10\u6d88\u5931\u3002\u53ef\u4ee5\u901a\u8fc7\u5728\u8fd9\u4e24\u4e2aTextView\u4e0a\u4f7f\u7528fade_in.xml\u548cfade_out.xml\u6765\u5b9e\u73b0\u3002<\/p>\n<h3>\u95ea\u70c1\u52a8\u753b<\/h3>\n<p>\u7728\u773c.xml.<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"&gt;\r\n    &lt;alpha android:fromAlpha=\"0.0\"\r\n        android:toAlpha=\"1.0\"\r\n        android:interpolator=\"@android:anim\/accelerate_interpolator\"\r\n        android:duration=\"600\"\r\n        android:repeatMode=\"reverse\"\r\n        android:repeatCount=\"infinite\"\/&gt;\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u6bcf\u6b21\u90fd\u4ee5\u65e0\u9650\u53cd\u5411\u6a21\u5f0f\u6267\u884c\u6de1\u5165\u6de1\u51fa\u3002<\/p>\n<h3>\u7f29\u653e\u52a8\u753b<\/h3>\n<p>\u6269\u5927\u955c\u5934.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\" &gt;\r\n\r\n    &lt;scale\r\n        xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n        android:duration=\"1000\"\r\n        android:fromXScale=\"1\"\r\n        android:fromYScale=\"1\"\r\n        android:pivotX=\"50%\"\r\n        android:pivotY=\"50%\"\r\n        android:toXScale=\"3\"\r\n        android:toYScale=\"3\" &gt;\r\n    &lt;\/scale&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u4f7f\u7528 pivotX=&#8221;50%&#8221; \u548c pivotY=&#8221;50%&#8221; \u6765\u4ece\u5143\u7d20\u4e2d\u5fc3\u6267\u884c\u7f29\u653e\u3002<\/p>\n<h3>\u653e\u5927\u52a8\u753b<\/h3>\n<p>\u7f29\u5c0f\u89c6\u89d2.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\" &gt;\r\n\r\n    &lt;scale\r\n        xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n        android:duration=\"1000\"\r\n        android:fromXScale=\"1.0\"\r\n        android:fromYScale=\"1.0\"\r\n        android:pivotX=\"50%\"\r\n        android:pivotY=\"50%\"\r\n        android:toXScale=\"0.5\"\r\n        android:toYScale=\"0.5\" &gt;\r\n    &lt;\/scale&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0czoom_in.xml\u548czoom_out.xml\u4e2d\u7684android:from\u548candroid:to\u662f\u76f8\u53cd\u7684\u3002<\/p>\n<h3>\u65cb\u8f6c\u52a8\u753b<\/h3>\n<p>\u65cb\u8f6c.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"&gt;\r\n    &lt;rotate android:fromDegrees=\"0\"\r\n        android:toDegrees=\"360\"\r\n        android:pivotX=\"50%\"\r\n        android:pivotY=\"50%\"\r\n        android:duration=\"600\"\r\n        android:repeatMode=\"restart\"\r\n        android:repeatCount=\"infinite\"\r\n        android:interpolator=\"@android:anim\/cycle_interpolator\"\/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u4f7f\u7528\u4e86\u4e00\u4e2afrom\/toDegrees\u6807\u7b7e\u6765\u6307\u5b9a\u89d2\u5ea6\uff0c\u5e76\u4f7f\u7528\u4e86\u4e00\u4e2a\u5faa\u73af\u63d2\u503c\u5668\u3002<\/p>\n<h3>\u79fb\u52a8\u52a8\u753b <\/h3>\n<p>\u79fb\u52a8.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set\r\n    xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:interpolator=\"@android:anim\/linear_interpolator\"\r\n    android:fillAfter=\"true\"&gt;\r\n\r\n   &lt;translate\r\n        android:fromXDelta=\"0%p\"\r\n        android:toXDelta=\"75%p\"\r\n        android:duration=\"800\" \/&gt;\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<h3>\u6ed1\u52a8\u4e0a\u79fb\u52a8\u753b<\/h3>\n<p>\u6ed1\u4e0a\u53bb.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\" &gt;\r\n\r\n    &lt;scale\r\n        android:duration=\"500\"\r\n        android:fromXScale=\"1.0\"\r\n        android:fromYScale=\"1.0\"\r\n        android:interpolator=\"@android:anim\/linear_interpolator\"\r\n        android:toXScale=\"1.0\"\r\n        android:toYScale=\"0.0\" \/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u5728\u7f29\u653e\u6807\u8bb0\u5185\u8bbe\u7f6eandroid:fromYScale=&#8221;1.0&#8243;\u548candroid:toYScale=&#8221;0.0&#8243;\u6765\u5b9e\u73b0\u3002<\/p>\n<h3>\u4e0b\u6ed1\u52a8\u753b<\/h3>\n<p>\u6ed1\u52a8\u5411\u4e0b.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\"&gt;\r\n\r\n    &lt;scale\r\n        android:duration=\"500\"\r\n        android:fromXScale=\"1.0\"\r\n        android:fromYScale=\"0.0\"\r\n        android:toXScale=\"1.0\"\r\n        android:toYScale=\"1.0\" \/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u8fd9\u6b63\u597d\u4e0eslide_up.xml\u76f8\u53cd\u3002<\/p>\n<h3>\u5f39\u8df3\u52a8\u753b<\/h3>\n<p>\u591a\u9879\u9009\u62e9\u56de\u5f39.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\"\r\n    android:interpolator=\"@android:anim\/bounce_interpolator\"&gt;\r\n\r\n    &lt;scale\r\n        android:duration=\"500\"\r\n        android:fromXScale=\"1.0\"\r\n        android:fromYScale=\"0.0\"\r\n        android:toXScale=\"1.0\"\r\n        android:toYScale=\"1.0\" \/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u4f7f\u7528\u53cd\u5f39\u63d2\u503c\u5668\u6765\u5b9e\u73b0\u4ee5\u5f39\u8df3\u65b9\u5f0f\u5b8c\u6210\u52a8\u753b\u3002<\/p>\n<h3>\u8fde\u7eed\u52a8\u753b<\/h3>\n<p>\u987a\u5e8f.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\"\r\n    android:interpolator=\"@android:anim\/linear_interpolator\" &gt;\r\n\r\n  \r\n    &lt;!-- Move --&gt;\r\n    &lt;translate\r\n        android:duration=\"800\"\r\n        android:fillAfter=\"true\"\r\n        android:fromXDelta=\"0%p\"\r\n        android:startOffset=\"300\"\r\n        android:toXDelta=\"75%p\" \/&gt;\r\n    &lt;translate\r\n        android:duration=\"800\"\r\n        android:fillAfter=\"true\"\r\n        android:fromYDelta=\"0%p\"\r\n        android:startOffset=\"1100\"\r\n        android:toYDelta=\"70%p\" \/&gt;\r\n    &lt;translate\r\n        android:duration=\"800\"\r\n        android:fillAfter=\"true\"\r\n        android:fromXDelta=\"0%p\"\r\n        android:startOffset=\"1900\"\r\n        android:toXDelta=\"-75%p\" \/&gt;\r\n    &lt;translate\r\n        android:duration=\"800\"\r\n        android:fillAfter=\"true\"\r\n        android:fromYDelta=\"0%p\"\r\n        android:startOffset=\"2700\"\r\n        android:toYDelta=\"-70%p\" \/&gt;\r\n\r\n    &lt;!-- Rotate 360 degrees --&gt;\r\n    &lt;rotate\r\n        android:duration=\"1000\"\r\n        android:fromDegrees=\"0\"\r\n        android:interpolator=\"@android:anim\/cycle_interpolator\"\r\n        android:pivotX=\"50%\"\r\n        android:pivotY=\"50%\"\r\n        android:startOffset=\"3800\"\r\n        android:repeatCount=\"infinite\"\r\n        android:repeatMode=\"restart\"\r\n        android:toDegrees=\"360\" \/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u4f7f\u7528\u4e86\u4e0d\u540c\u7684android:startOffset\u6765\u4fdd\u6301\u8fc7\u6e21\u4e4b\u95f4\u7684\u987a\u5e8f\u3002<\/p>\n<h3>\u4e00\u8d77\u52a8\u753b<\/h3>\n<p>\u4e00\u8d77.xml<\/p>\n<pre class=\"post-pre\"><code>&lt;set xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:fillAfter=\"true\"\r\n    android:interpolator=\"@android:anim\/linear_interpolator\" &gt;\r\n\r\n    \r\n    &lt;!-- Move --&gt;\r\n    &lt;scale\r\n        xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n        android:duration=\"4000\"\r\n        android:fromXScale=\"1\"\r\n        android:fromYScale=\"1\"\r\n        android:pivotX=\"50%\"\r\n        android:pivotY=\"50%\"\r\n        android:toXScale=\"4\"\r\n        android:toYScale=\"4\" &gt;\r\n    &lt;\/scale&gt;\r\n\r\n    &lt;!-- Rotate 180 degrees --&gt;\r\n    &lt;rotate\r\n        android:duration=\"500\"\r\n        android:fromDegrees=\"0\"\r\n        android:pivotX=\"50%\"\r\n        android:pivotY=\"50%\"\r\n        android:repeatCount=\"infinite\"\r\n        android:repeatMode=\"restart\"\r\n        android:toDegrees=\"360\" \/&gt;\r\n\r\n&lt;\/set&gt;\r\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u79fb\u9664\u4e86 android:startOffset\uff0c\u8ba9\u5b83\u4eec\u540c\u65f6\u53d1\u751f\u3002<\/p>\n<h3>\u4ee3\u7801<\/h3>\n<p>activity_main.xml \u5e03\u5c40\u7531 ScrollView \u548c RelativeLayout \u7ec4\u6210\uff08\u6211\u4eec\u5c06\u5728\u4e0b\u4e00\u4e2a\u6559\u7a0b\u4e2d\u8ba8\u8bba\uff09\u3002\u8fd9\u4e2a\u5e03\u5c40\u901a\u8fc7\u5404\u81ea\u7684\u6309\u94ae\u8c03\u7528\u6bcf\u79cd\u52a8\u753b\u7c7b\u578b\u6765\u6539\u53d8\u6587\u672c\u3002\u4ee5\u4e0b\u662f xml \u6587\u4ef6\u7684\u793a\u4f8b: activity_main.xml\u3002<\/p>\n<pre class=\"post-pre\"><code>&lt;ScrollView xmlns:android=\"https:\/\/schemas.android.com\/apk\/res\/android\"\r\n    android:layout_width=\"fill_parent\"\r\n    android:layout_height=\"fill_parent\" &gt;\r\n\r\n    &lt;RelativeLayout\r\n        android:layout_width=\"match_parent\"\r\n        android:layout_height=\"match_parent\"&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnFadeIn\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:text=\"Fade In\" \/&gt;\r\n\r\n        &lt;TextView\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n                android:text=\"Fade In\"\r\n                android:id=\"@+id\/txt_fade_in\"\r\n            android:layout_alignBottom=\"@+id\/btnFadeIn\"\r\n            android:layout_alignLeft=\"@+id\/txt_fade_out\"\r\n            android:layout_alignStart=\"@+id\/txt_fade_out\" \/&gt;\r\n\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnFadeOut\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnFadeIn\"\r\n                android:text=\"Fade Out\" \/&gt;\r\n\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnCrossFade\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnFadeOut\"\r\n                android:text=\"Cross Fade\" \/&gt;\r\n\r\n        &lt;TextView\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n                android:text=\"Cross Fade In\"\r\n                android:id=\"@+id\/txt_out\"\r\n                android:visibility=\"gone\"\r\n                android:layout_gravity=\"center_horizontal\"\r\n                android:layout_alignTop=\"@+id\/txt_in\"\r\n                android:layout_alignLeft=\"@+id\/txt_in\"\r\n                android:layout_alignStart=\"@+id\/txt_in\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnBlink\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnCrossFade\"\r\n                android:text=\"Blink\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnZoomIn\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnBlink\"\r\n                android:text=\"Zoom In\" \/&gt;\r\n\r\n        &lt;TextView\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n                android:text=\"Blink\"\r\n                android:id=\"@+id\/txt_blink\"\r\n                android:layout_gravity=\"center_horizontal\"\r\n            android:layout_alignBottom=\"@+id\/btnBlink\"\r\n            android:layout_alignLeft=\"@+id\/txt_zoom_in\"\r\n            android:layout_alignStart=\"@+id\/txt_zoom_in\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnZoomOut\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnZoomIn\"\r\n                android:text=\"Zoom Out\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnRotate\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnZoomOut\"\r\n                android:text=\"Rotate\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnMove\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnRotate\"\r\n                android:text=\"Move\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnSlideUp\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnMove\"\r\n                android:text=\"Slide Up\" \/&gt;\r\n\r\n        &lt;TextView\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n                android:text=\"Fade Out\"\r\n                android:id=\"@+id\/txt_fade_out\"\r\n                android:layout_gravity=\"center_horizontal\"\r\n            android:layout_alignBottom=\"@+id\/btnFadeOut\"\r\n            android:layout_alignLeft=\"@+id\/txt_in\"\r\n            android:layout_alignStart=\"@+id\/txt_in\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnSlideDown\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnSlideUp\"\r\n                android:text=\"Slide Down\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnBounce\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnSlideDown\"\r\n                android:text=\"Bounce\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnSequential\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_margin=\"5dp\"\r\n                android:layout_below=\"@id\/btnBounce\"\r\n                android:text=\"Sequential Animation\" \/&gt;\r\n\r\n        &lt;Button\r\n                android:id=\"@+id\/btnTogether\"\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:layout_below=\"@id\/btnSequential\"\r\n                android:layout_margin=\"5dp\"\r\n                android:text=\"Together Animation\" \/&gt;\r\n\r\n        &lt;TextView\r\n                android:layout_width=\"wrap_content\"\r\n                android:layout_height=\"wrap_content\"\r\n                android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n                android:text=\"Cross Fade Out\"\r\n                android:id=\"@+id\/txt_in\"\r\n                android:layout_gravity=\"center_horizontal\"\r\n            android:layout_alignBottom=\"@+id\/btnCrossFade\"\r\n            android:layout_alignLeft=\"@+id\/txt_blink\"\r\n            android:layout_alignStart=\"@+id\/txt_blink\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Zoom In\"\r\n            android:id=\"@+id\/txt_zoom_in\"\r\n            android:layout_alignBottom=\"@+id\/btnZoomIn\"\r\n            android:layout_alignLeft=\"@+id\/txt_zoom_out\"\r\n            android:layout_alignStart=\"@+id\/txt_zoom_out\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Zoom Out\"\r\n            android:id=\"@+id\/txt_zoom_out\"\r\n            android:layout_alignBottom=\"@+id\/btnZoomOut\"\r\n            android:layout_toRightOf=\"@+id\/btnSequential\"\r\n            android:layout_toEndOf=\"@+id\/btnSequential\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Rotate\"\r\n            android:id=\"@+id\/txt_rotate\"\r\n            android:layout_above=\"@+id\/btnMove\"\r\n            android:layout_toRightOf=\"@+id\/btnSequential\"\r\n            android:layout_toEndOf=\"@+id\/btnSequential\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Move\"\r\n            android:id=\"@+id\/txt_move\"\r\n            android:layout_alignBottom=\"@+id\/btnMove\"\r\n            android:layout_alignLeft=\"@+id\/txt_slide_up\"\r\n            android:layout_alignStart=\"@+id\/txt_slide_up\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Slide Up\"\r\n            android:id=\"@+id\/txt_slide_up\"\r\n            android:layout_alignBottom=\"@+id\/btnSlideUp\"\r\n            android:layout_toRightOf=\"@+id\/btnSequential\"\r\n            android:layout_toEndOf=\"@+id\/btnSequential\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Slide Down\"\r\n            android:id=\"@+id\/txt_slide_down\"\r\n            android:layout_alignBottom=\"@+id\/btnSlideDown\"\r\n            android:layout_alignLeft=\"@+id\/txt_slide_up\"\r\n            android:layout_alignStart=\"@+id\/txt_slide_up\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Bounce\"\r\n            android:id=\"@+id\/txt_bounce\"\r\n            android:layout_alignBottom=\"@+id\/btnBounce\"\r\n            android:layout_alignLeft=\"@+id\/txt_slide_down\"\r\n            android:layout_alignStart=\"@+id\/txt_slide_down\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Sequential\"\r\n            android:id=\"@+id\/txt_seq\"\r\n            android:layout_alignBottom=\"@+id\/btnSequential\"\r\n            android:layout_alignLeft=\"@+id\/txt_bounce\"\r\n            android:layout_alignStart=\"@+id\/txt_bounce\" \/&gt;\r\n\r\n        &lt;TextView\r\n            android:layout_width=\"wrap_content\"\r\n            android:layout_height=\"wrap_content\"\r\n            android:textAppearance=\"?android:attr\/textAppearanceMedium\"\r\n            android:text=\"Together\"\r\n            android:id=\"@+id\/txt_tog\"\r\n            android:layout_alignBottom=\"@+id\/btnTogether\"\r\n            android:layout_toRightOf=\"@+id\/btnSequential\"\r\n            android:layout_toEndOf=\"@+id\/btnSequential\" \/&gt;\r\n\r\n    &lt;\/RelativeLayout&gt;\r\n\r\n&lt;\/ScrollView&gt;\r\n<\/code><\/pre>\n<p>\u603b\u7ed3\u4e00\u4e0b\uff0cRelativeLayout\u662f\u4e00\u79cd\u76f8\u5bf9\u4e8e\u5176\u4ed6UI\u7ec4\u4ef6\u8fdb\u884c\u6392\u5217\u7684\u5e03\u5c40\u65b9\u5f0f\u3002MainActivity.java\u6587\u4ef6\u5305\u542b\u4e86\u4e0e\u6bcf\u4e2a\u6309\u94ae\u76f8\u5173\u7684\u52a8\u753b\u7c7b\u578b\u7684onClick\u76d1\u542c\u5668\u3002\u5176\u6e90\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.animations;\r\n\r\nimport android.app.Activity;\r\nimport android.content.Intent;\r\nimport android.os.Bundle;\r\nimport android.view.View;\r\nimport android.view.animation.Animation;\r\nimport android.view.animation.AnimationUtils;\r\nimport android.widget.Button;\r\nimport android.widget.TextView;\r\n\r\npublic class MainActivity extends Activity {\r\n\r\n    Button btnFadeIn, btnFadeOut, btnCrossFade, btnBlink, btnZoomIn,\r\n            btnZoomOut, btnRotate, btnMove, btnSlideUp, btnSlideDown,\r\n            btnBounce, btnSequential, btnTogether;\r\n    Animation animFadeIn,animFadeOut,animBlink,animZoomIn,animZoomOut,animRotate\r\n            ,animMove,animSlideUp,animSlideDown,animBounce,animSequential,animTogether,animCrossFadeIn,animCrossFadeOut;\r\n    TextView txtFadeIn,txtFadeOut,txtBlink,txtZoomIn,txtZoomOut,txtRotate,txtMove,txtSlideUp,\r\n                txtSlideDown,txtBounce,txtSeq,txtTog,txtIn,txtOut;\r\n\r\n    @Override\r\n    protected void onCreate(Bundle savedInstanceState) {\r\n        super.onCreate(savedInstanceState);\r\n        setContentView(R.layout.activity_main);\r\n\r\n        btnFadeIn = (Button) findViewById(R.id.btnFadeIn);\r\n        btnFadeOut = (Button) findViewById(R.id.btnFadeOut);\r\n        btnCrossFade = (Button) findViewById(R.id.btnCrossFade);\r\n        btnBlink = (Button) findViewById(R.id.btnBlink);\r\n        btnZoomIn = (Button) findViewById(R.id.btnZoomIn);\r\n        btnZoomOut = (Button) findViewById(R.id.btnZoomOut);\r\n        btnRotate = (Button) findViewById(R.id.btnRotate);\r\n        btnMove = (Button) findViewById(R.id.btnMove);\r\n        btnSlideUp = (Button) findViewById(R.id.btnSlideUp);\r\n        btnSlideDown = (Button) findViewById(R.id.btnSlideDown);\r\n        btnBounce = (Button) findViewById(R.id.btnBounce);\r\n        btnSequential = (Button) findViewById(R.id.btnSequential);\r\n        btnTogether = (Button) findViewById(R.id.btnTogether);\r\n        txtFadeIn=(TextView)findViewById(R.id.txt_fade_in);\r\n        txtFadeOut=(TextView)findViewById(R.id.txt_fade_out);\r\n        txtBlink=(TextView)findViewById(R.id.txt_blink);\r\n        txtZoomIn=(TextView)findViewById(R.id.txt_zoom_in);\r\n        txtZoomOut=(TextView)findViewById(R.id.txt_zoom_out);\r\n        txtRotate=(TextView)findViewById(R.id.txt_rotate);\r\n        txtMove=(TextView)findViewById(R.id.txt_move);\r\n        txtSlideUp=(TextView)findViewById(R.id.txt_slide_up);\r\n        txtSlideDown=(TextView)findViewById(R.id.txt_slide_down);\r\n        txtBounce=(TextView)findViewById(R.id.txt_bounce);\r\n        txtSeq=(TextView)findViewById(R.id.txt_seq);\r\n        txtTog=(TextView)findViewById(R.id.txt_tog);\r\n        txtIn=(TextView)findViewById(R.id.txt_in);\r\n        txtOut=(TextView)findViewById(R.id.txt_out);\r\n        animFadeIn = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.fade_in);\r\n\t\t\r\n        animFadeIn = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.fade_in);\r\n        \/\/ fade in\r\n        btnFadeIn.setOnClickListener(new View.OnClickListener() {\r\n\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtFadeIn.setVisibility(View.VISIBLE);\r\n                txtFadeIn.startAnimation(animFadeIn);\r\n            }\r\n        });\r\n\r\n        animFadeOut = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.fade_out);\r\n\r\n        \/\/ fade out\r\n        btnFadeOut.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtFadeOut.setVisibility(View.VISIBLE);\r\n                txtFadeOut.startAnimation(animFadeOut);\r\n            }\r\n        });\r\n        animCrossFadeIn = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.fade_in);\r\n        animCrossFadeOut = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.fade_out);\r\n        \/\/ cross fade\r\n        btnCrossFade.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtOut.setVisibility(View.VISIBLE);\r\n                \/\/ start fade in animation\r\n                txtOut.startAnimation(animCrossFadeIn);\r\n\r\n                \/\/ start fade out animation\r\n                txtIn.startAnimation(animCrossFadeOut);\r\n            }\r\n        });\r\n        animBlink = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.blink);\r\n        \/\/ blink\r\n        btnBlink.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtBlink.setVisibility(View.VISIBLE);\r\n                txtBlink.startAnimation(animBlink);\r\n            }\r\n        });\r\n\r\n        animZoomIn = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.zoom_in);\r\n        \/\/ Zoom In\r\n        btnZoomIn.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtZoomIn.setVisibility(View.VISIBLE);\r\n                txtZoomIn.startAnimation(animZoomIn);\r\n            }\r\n        });\r\n        animZoomOut = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.zoom_out);\r\n        \/\/ Zoom Out\r\n        btnZoomOut.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtZoomOut.setVisibility(View.VISIBLE);\r\n                txtZoomOut.startAnimation(animZoomOut);\r\n            }\r\n        });\r\n        animRotate = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.rotate);\r\n\r\n        \/\/ Rotate\r\n        btnRotate.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtRotate.startAnimation(animRotate);\r\n            }\r\n        });\r\n        animMove = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.move);\r\n        \/\/ Move\r\n        btnMove.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtMove.startAnimation(animMove);\r\n            }\r\n        });\r\n        animSlideUp = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.slide_up);\r\n        \/\/ Slide Up\r\n        btnSlideUp.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtSlideUp.startAnimation(animSlideUp);\r\n            }\r\n        });\r\n        animSlideDown = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.slide_down);\r\n        \/\/ Slide Down\r\n        btnSlideDown.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtSlideDown.startAnimation(animSlideDown);\r\n            }\r\n        });\r\n        animBounce = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.bounce);\r\n        \/\/ Slide Down\r\n        btnBounce.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n                txtBounce.startAnimation(animBounce);\r\n            }\r\n        });\r\n        animSequential = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.sequential);\r\n        \/\/ Sequential\r\n        btnSequential.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public void onClick(View v) {\r\n\r\n                        txtSeq.startAnimation(animSequential);\r\n            }\r\n        });\r\n        animTogether = AnimationUtils.loadAnimation(getApplicationContext(),\r\n                R.anim.together);\r\n\r\n        \/\/ Together\r\n        btnTogether.setOnClickListener(new View.OnClickListener() {\r\n            @Override\r\n            public 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