Android---63---Android中的动画效果

Android中有四种动画效果：

AlphaAnimation：透明度动画效果

ScaleAnimation：缩放动画效果

TranslateAnimation：位移动画效果

RotateAnimation：旋转动画效果

1.透明动画效果

public class MainActivity extends Activity {private AlphaAnimation aa;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);aa = new AlphaAnimation(1, 0);aa.setDuration(3000);// 设置监听事件aa.setAnimationListener(new AnimationListener() {@Overridepublic void onAnimationStart(Animation animation) {Toast.makeText(MainActivity.this, "start", 0).show();}@Overridepublic void onAnimationRepeat(Animation animation) {Toast.makeText(MainActivity.this, "repeat", 0).show();}@Overridepublic void onAnimationEnd(Animation animation) {Toast.makeText(MainActivity.this, "end", 0).show();}});findViewById(R.id.btn).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {v.startAnimation(aa);}});}}

通过xml配置文件完成该动画效果

创建xml文件：右键res->选择androidxmlfile

创建完成之后会在res目录下生成一个anim文件夹

aa.xml：

<?xml version="1.0" encoding="utf-8"?><alpha xmlns:android="http://schemas.android.com/apk/res/android"    android:duration="3000"    android:fromAlpha="1"    android:toAlpha="0" ></alpha>

Activity中只需要声明AlphaAnimation并在Button的监听事件中调用

v.setAnimation (AnimationUtils.loadAnimation(MainActivity.this,R.anim.aa));

效果是一样的。

2.缩放动画效果

Android---63---Android中的动画效果_第1张图片

public class MainActivity extends Activity {private ScaleAnimation sa;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);sa = new ScaleAnimation(0, 1, 0, 1, Animation.RELATIVE_TO_SELF, 0.5f,Animation.RELATIVE_TO_SELF, 0.5f);sa.setDuration(2000);findViewById(R.id.btn).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {v.startAnimation(sa);}});}}

通过xml文件：

<?xml version="1.0" encoding="utf-8"?><scale xmlns:android="http://schemas.android.com/apk/res/android"    android:duration="2000"    android:fromXScale="0"    android:fromYScale="0"    android:pivotX="50%"    android:pivotY="50%"    android:toXScale="1"    android:toYScale="1" ></scale>

3.位移动画效果

public class MainActivity extends Activity {private TranslateAnimation ta;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ta = new TranslateAnimation(0, 200, 0, 200);ta.setDuration(2000);findViewById(R.id.btn).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {v.startAnimation(ta);// v.startAnimation(AnimationUtils.loadAnimation(// MainActivity.this, R.anim.ta));}});}}

xml:

<?xml version="1.0" encoding="utf-8"?><translate xmlns:android="http://schemas.android.com/apk/res/android"    android:duration="2000"    android:fromXDelta="0"    android:fromYDelta="0"    android:toXDelta="200"    android:toYDelta="200" ></translate>

4.旋转动画效果

public class MainActivity extends Activity {private RotateAnimation ra;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// ra = new RotateAnimation(0, 360);// ra = new RotateAnimation(0, 360, 50, 150);ra = new RotateAnimation(0, 360, Animation.RELATIVE_TO_SELF, 0.5f,Animation.RELATIVE_TO_SELF, 0.5f);ra.setDuration(2000);findViewById(R.id.btn).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {v.startAnimation(ra);}});}}

动画混合：

AnimationSet

public class MainActivity extends Activity {AnimationSet as ;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);as = new AnimationSet(true);as.setDuration(2000);AlphaAnimation aa = new AlphaAnimation(0, 1);aa.setDuration(2000);TranslateAnimation ta = new TranslateAnimation(0, 200, 0, 200);ta.setDuration(2000);as.addAnimation(ta);as.addAnimation(aa);findViewById(R.id.btn).setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {v.startAnimation(as);}});}}

创建Xml文件选择set：

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"    android:duration="2000"    android:shareInterpolator="true" >    <alpha        android:fromAlpha="0"        android:toAlpha="1" />    <translate        android:fromXDelta="0"        android:fromYDelta="0"        android:toXDelta="200"        android:toYDelta="200" /></set>

更多相关文章

随机推荐