打开动画工具类代码
/**
* 对 ViewAnimationUtils.createCircularReveal() 方法的封装.
* <p/>
* Created on 16/7/20.
* GitHub: https://github.com/XunMengWinter
*
* @author ice
*/
public class CircularAnimUtil {
public static final long PERFECT_MILLS = 618;
public static final int MINI_RADIUS = 0;
/**
* 向四周伸张，直到完成显示。
*/
@SuppressLint("NewApi")
public static void show(View myView, float startRadius, long durationMills) {
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
myView.setVisibility(View.VISIBLE);
return;
}
int cx = (myView.getLeft() + myView.getRight()) / 2;
int cy = (myView.getTop() + myView.getBottom()) / 2;
int w = myView.getWidth();
int h = myView.getHeight();
// 勾股定理 & 进一法
int finalRadius = (int) Math.sqrt(w * w + h * h) + 1;
Animator anim =
ViewAnimationUtils.createCircularReveal(myView, cx, cy, startRadius, finalRadius);
myView.setVisibility(View.VISIBLE);
anim.setDuration(durationMills);
anim.start();
}
/**
* 由满向中间收缩，直到隐藏。
*/
@SuppressLint("NewApi")
public static void hide(final View myView, float endRadius, long durationMills) {
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
myView.setVisibility(View.INVISIBLE);
return;
}
int cx = (myView.getLeft() + myView.getRight()) / 2;
int cy = (myView.getTop() + myView.getBottom()) / 2;
int w = myView.getWidth();
int h = myView.getHeight();
// 勾股定理 & 进一法
int initialRadius = (int) Math.sqrt(w * w + h * h) + 1;
Animator anim =
ViewAnimationUtils.createCircularReveal(myView, cx, cy, initialRadius, endRadius);
anim.setDuration(durationMills);
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
myView.setVisibility(View.INVISIBLE);
}
});
anim.start();
}
/**
* 从指定View开始向四周伸张(伸张颜色或图片为colorOrImageRes), 然后进入另一个Activity,
* 返回至 @thisActivity 后显示收缩动画。
*/
@SuppressLint("NewApi")
public static void startActivityForResult(
final Activity thisActivity, final Intent intent, final Integer requestCode, final Bundle bundle,
final View triggerView, int colorOrImageRes, long durationMills) {
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
if(requestCode != null){
thisActivity.startActivityForResult(intent,requestCode);
}else{
thisActivity.startActivity(intent);
}
return;
}
int[] location = new int[2];
triggerView.getLocationInWindow(location);
final int cx = location[0] + triggerView.getWidth() / 2;
final int cy = location[1] + triggerView.getHeight() / 2;
final ImageView view = new ImageView(thisActivity);
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setImageResource(colorOrImageRes);
final ViewGroup decorView = (ViewGroup) thisActivity.getWindow().getDecorView();
int w = decorView.getWidth();
int h = decorView.getHeight();
decorView.addView(view, w, h);
// 计算中心点至view边界的最大距离
int maxW = Math.max(cx, w - cx);
int maxH = Math.max(cy, h - cy);
final int finalRadius = (int) Math.sqrt(maxW * maxW + maxH * maxH) + 1;
Animator
anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, 0, finalRadius);
int maxRadius = (int) Math.sqrt(w * w + h * h) + 1;
// 若使用默认时长，则需要根据水波扩散的距离来计算实际时间
if (durationMills == PERFECT_MILLS) {
// 算出实际边距与最大边距的比率
double rate = 1d * finalRadius / maxRadius;
// 水波扩散的距离与扩散时间成正比
durationMills = (long) (PERFECT_MILLS * rate);
}
final long finalDuration = durationMills;
anim.setDuration(finalDuration);
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
if (requestCode == null)
thisActivity.startActivity(intent);
else if (bundle == null)
thisActivity.startActivityForResult(intent, requestCode);
else
thisActivity.startActivityForResult(intent, requestCode, bundle);
// 默认渐隐过渡动画.
thisActivity.overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
// 默认显示返回至当前Activity的动画.
triggerView.postDelayed(new Runnable() {
@Override
public void run() {
Animator anim =
ViewAnimationUtils.createCircularReveal(view, cx, cy, finalRadius, 0);
anim.setDuration(finalDuration);
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
try {
decorView.removeView(view);
} catch (Exception e) {
e.printStackTrace();
}
}
});
anim.start();
}
}, 1000);
}
});
anim.start();
}
@SuppressLint("NewApi")
public static void fragmentStartActivityForResult(
final Fragment thisActivity, final Intent intent, final Integer requestCode, final Bundle bundle,
final View triggerView, int colorOrImageRes, long durationMills) {
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
if(requestCode != null){
thisActivity.startActivityForResult(intent,requestCode);
}else{
thisActivity.startActivity(intent);
}
return;
}
int[] location = new int[2];
triggerView.getLocationInWindow(location);
final int cx = location[0] + triggerView.getWidth() / 2;
final int cy = location[1] + triggerView.getHeight() / 2;
final ImageView view = new ImageView(thisActivity.getContext());
view.setScaleType(ImageView.ScaleType.CENTER_CROP);
view.setImageResource(colorOrImageRes);
final ViewGroup decorView = (ViewGroup) thisActivity.getActivity().getWindow().getDecorView();
int w = decorView.getWidth();
int h = decorView.getHeight();
decorView.addView(view, w, h);
// 计算中心点至view边界的最大距离
int maxW = Math.max(cx, w - cx);
int maxH = Math.max(cy, h - cy);
final int finalRadius = (int) Math.sqrt(maxW * maxW + maxH * maxH) + 1;
Animator
anim = ViewAnimationUtils.createCircularReveal(view, cx, cy, 0, finalRadius);
int maxRadius = (int) Math.sqrt(w * w + h * h) + 1;
// 若使用默认时长，则需要根据水波扩散的距离来计算实际时间
if (durationMills == PERFECT_MILLS) {
// 算出实际边距与最大边距的比率
double rate = 1d * finalRadius / maxRadius;
// 水波扩散的距离与扩散时间成正比
durationMills = (long) (PERFECT_MILLS * rate);
}
final long finalDuration = durationMills;
anim.setDuration(finalDuration);
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
if (requestCode == null)
thisActivity.startActivity(intent);
else if (bundle == null)
thisActivity.startActivityForResult(intent, requestCode);
else
thisActivity.startActivityForResult(intent, requestCode, bundle);
// 默认渐隐过渡动画.
thisActivity.getActivity().overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
// 默认显示返回至当前Activity的动画.
triggerView.postDelayed(new Runnable() {
@Override
public void run() {
Animator anim =
ViewAnimationUtils.createCircularReveal(view, cx, cy, finalRadius, 0);
anim.setDuration(finalDuration);
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
try {
decorView.removeView(view);
} catch (Exception e) {
e.printStackTrace();
}
}
});
anim.start();
}
}, 1000);
}
});
anim.start();
}
/*下面的方法全是重载，用简化上面方法的构建*/
public static void startActivityForResult(
Activity thisActivity, Intent intent, Integer requestCode, View triggerView, int colorOrImageRes) {
startActivityForResult(thisActivity, intent, requestCode, null, triggerView, colorOrImageRes, PERFECT_MILLS);
}
public static void fragmentStartActivityForResult(
Fragment thisActivity, Intent intent, Integer requestCode, View triggerView, int colorOrImageRes) {
fragmentStartActivityForResult(thisActivity, intent, requestCode, null, triggerView, colorOrImageRes, PERFECT_MILLS);
}
public static void startActivity(
Activity thisActivity, Intent intent, View triggerView, int colorOrImageRes, long durationMills) {
startActivityForResult(thisActivity, intent, null, null, triggerView, colorOrImageRes, durationMills);
}
public static void startActivity(
Activity thisActivity, Intent intent, View triggerView, int colorOrImageRes) {
startActivity(thisActivity, intent, triggerView, colorOrImageRes, PERFECT_MILLS);
}
public static void startActivity(Activity thisActivity, Class<?> targetClass, View triggerView, int colorOrImageRes) {
startActivity(thisActivity, new Intent(thisActivity, targetClass), triggerView, colorOrImageRes, PERFECT_MILLS);
}
public static void show(View myView) {
show(myView, MINI_RADIUS, PERFECT_MILLS);
}
public static void hide(View myView) {
hide(myView, MINI_RADIUS, PERFECT_MILLS);
}
启动方式代码
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Intent intent = new Intent(getContext(), CalendarActivity.class);
// startActivityForResult(intent,2);
Snackbar.make(v, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
Intent it = new Intent();
it.setClass(getActivity(), CalendarActivity.class);
CircularAnimUtil.fragmentStartActivityForResult(fragment,it,2,fab,R.color.colorAccent);
}
});
网友评论