Android中启动动画源码讲解

首先是主要代码的实现，去调用各个xml 配置文件：

MainActivity:

public class MainActivity extends Activity {private ImageView imageView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//获取显示控件IDimageView = (ImageView) findViewById(R.id.imageView1);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}public void animImpl(View v){//调用 动画的配置文件Animation animation = AnimationUtils.loadAnimation(this, R.anim.alpha_demo);imageView.startAnimation(animation);}//旋转动画public void rotate(){Animation animation = AnimationUtils.loadAnimation(this, R.anim.rotate_demo);imageView.startAnimation(animation);}//缩放动画public void scaleImpl(){Animation animation = AnimationUtils.loadAnimation(this, R.anim.scale_demo);imageView.startAnimation(animation);}//移动效果public void translateImpl(){//XML文件/*Animation animation = AnimationUtils.loadAnimation(this, R.anim.translate_demo);animation.setRepeatCount(Animation.INFINITE);*/  /* 第一种    * imageView.setAnimation(animation);    animation.start();*///第二种//imageView.startAnimation(animation);//Java代码TranslateAnimation translateAnimation = new TranslateAnimation(0, 200, 0, 0);translateAnimation.setDuration(2000);imageView.startAnimation(translateAnimation);}//缩放效果}

alpha_demo.xml

rotate_demo.xml

scale_demo.xml

translate_demo.xml

activity_main.xml

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