DialogFragment 出场动画
DialogFragment 其实就是继承fragment，用Fragment的事物进行管理
首先在onCreate中指定DialogFragment 所对应的样式
setStyle(DialogFragment.STYLE_NO_FRAME, R.style.DialogStyle);
然后在onCreateView 中返回的是我们将要展示的布局
rootView = View.inflate(getContext(), R.layout.dialog_fragment,null);
final ViewTreeObserver viewTreeObserver = rootView.getViewTreeObserver();
boolean alive = viewTreeObserver.isAlive();
// 当一个视图树将要绘制时，所要调用的回调函数的接口类
// 增加监听是为了，加入DialogFragment的出场动画
viewTreeObserver.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
@Override
public boolean onPreDraw() {
// this 就表示的这个接口的匿名实现类
rootView.getViewTreeObserver().removeOnPreDrawListener(this);
System.out.println("MyDialogFragment onPreDraw 33333333333");
if (circleAnimal != null){
circleAnimal.show(rootView);
}
return true;
}
});
在onstart方法中设置DialogFragment的宽高，然后设置初始化动画对象
@Override
public void onStart() {
super.onStart();
System.out.println("MyDialogFragment onStart 44444444444444");
ViewGroup.LayoutParams params = getDialog().getWindow().getAttributes();
params.width = WindowManager.LayoutParams.MATCH_PARENT;
params.height = WindowManager.LayoutParams.MATCH_PARENT;
getDialog().getWindow().setAttributes((WindowManager.LayoutParams) params);
//取消过渡动画 , 使DialogSearch的出现更加平滑
// getDialog().getWindow().setWindowAnimations(R.style.DialogEmptyAnimation);
// 初始化动画对象，并且设置回调监听
circleAnimal = new CircleAnimal();
circleAnimal.setAnimListener(this);
}
动画类
public class CircleAnimal {
//duration 运行时间
private static final long DURATION = 200;
//动画监听
private AnimListener mListener = null;
private Animator anim;
public interface AnimListener {
//退出动画完成
void onHideAnimationEnd();
//出场动画完成
void onShowAnimationEnd();
}
private void actionOtherVisible(boolean isShow,final View animView){
int[] location = new int[2];
// 获取view在当前窗口内的绝对坐标
animView.getLocationInWindow(location);
System.out.println("location :" + location[0]);// X 0
System.out.println("location :" + location[1]);// y 0
//计算中心位置
int avX = location[0] + animView.getWidth() / 2;
int avY = location[1] + animView.getHeight() / 2;
System.out.println("location avX" + avX +" avY " +avY);
//这个是获取view在当前屏幕的高度，包含通知栏的高度也就是状态栏的高度
// int[] locaton2 = new int[2];
// animView.getLocationOnScreen(locaton2);
// System.out.println("locaton2 :" + locaton2[0]);// x 0
// System.out.println("locaton2 :" + locaton2[1]);// y 90
float startRadius;
float endRadius;
// Math.sqrt 这个函数是用来计算平方根的
float maxRadius = (float) Math.sqrt((double) (avX * avX + avY * avY));
System.out.println("maxRadius :" + maxRadius);
if (isShow) {
startRadius = 0f;
endRadius = maxRadius;
} else {
startRadius = maxRadius;
endRadius = 0f;
}
// 快速实现圆形动画缩放的api，5.0之后才引入 Reveal 显示，展示的意思
anim = ViewAnimationUtils.createCircularReveal(animView,0,0,startRadius, 2160f);
animView.setVisibility(View.VISIBLE);
anim.setDuration(500);
anim.setInterpolator(new DecelerateInterpolator());
anim.start();
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
// animView.setVisibility(View.VISIBLE);
}
});
}
public void show(View rootView){
actionOtherVisible(true,rootView);
}
public void hide(View rootView) {
actionOtherVisible(false,rootView);
}
// 设置对动画的监听
public void setAnimListener(AnimListener listener) {
mListener = listener;
}
}
下面这个是玩Android 的动画类
public class CircularRevealAnim {
//duration 运行时间
private static final long DURATION = 200;
//动画监听
private AnimListener mListener = null;
private Animator anim;
public interface AnimListener {
void onHideAnimationEnd();
//动画展示完成
void onShowAnimationEnd();
}
@SuppressLint("NewApi")
private void actionOtherVisible(Boolean isShow, View triggerView, View animView) {
// triggerView 是所要获取焦点的EditTextView
// Lollipop是21
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
if (isShow) {
// animView 是整个rootView，
animView.setVisibility(View.VISIBLE);
if (mListener != null) {
anim.cancel();
anim = null;
mListener.onShowAnimationEnd();
}
} else {
animView.setVisibility(View.GONE);
if (mListener != null) {
anim.cancel();
anim = null;
mListener.onHideAnimationEnd();
}
}
return;
}
/**
* 计算 triggerView 的中心位置
*/
int[] tvLocation = {0, 0};
triggerView.getLocationInWindow(tvLocation);
//156--------12
System.out.println("tvLocation :" + tvLocation[0] +"--------" +tvLocation[1]);
// 屏幕宽度的的0.8 倍
int tvX = (int) (tvLocation[0] + animView.getWidth() * 0.8);
// edittext 高度的一般
int tvY = tvLocation[1] + triggerView.getHeight() / 2;
// 1002-----tvY84
System.out.println("tvX :" + tvX +"-----tvY" +tvY);
/**
* 计算 animView 的中心位置
*/
int[] avLocation = {0, 0};
animView.getLocationInWindow(avLocation);
// 0--------0
System.out.println("avLocation :" + avLocation[0] +"--------" +avLocation[1]);
int avX = avLocation[0] + animView.getWidth() / 2;
int avY = avLocation[1] + animView.getHeight() / 2;
// : avX :529 avY :987
System.out.println("avX :"+ avX + " avY :"+ avY);
int rippleW;
if (tvX < avX) { //1002 < 529
rippleW = animView.getWidth() - tvX;
} else {
// 1002 - 0
rippleW = tvX - avLocation[0];
}
// 84
int rippleH;
if (tvY < avY) {//84 < 987
rippleH = animView.getHeight() - tvY;
} else {
rippleH = tvY - avLocation[1];//84 -
}
// Math.sqrt(9) 返回一个正值的平方根 为3 1002*1002 +
float maxRadius = (float) Math.sqrt((double) (rippleW * rippleW + rippleH * rippleH));
float startRadius;
float endRadius;
if (isShow) {
startRadius = 0f;
endRadius = maxRadius;
} else {
startRadius = maxRadius;
endRadius = 0f;
}
// tvX :1002 ;tvY :84 endRadius :2139.183
System.out.println("tvX :" + tvX +" ;tvY :" +tvY + " endRadius :" + endRadius);
anim = ViewAnimationUtils.createCircularReveal(animView, tvX, tvY, startRadius, endRadius);
animView.setVisibility(View.VISIBLE);
anim.setDuration(DURATION);
anim.setInterpolator(new DecelerateInterpolator());
anim.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {
}
@Override
public void onAnimationEnd(Animator animation) {
if (isShow) {
animView.setVisibility(View.VISIBLE);
if (mListener != null) {
mListener.onShowAnimationEnd();
}
} else {
animView.setVisibility(View.GONE);
if (mListener != null) {
mListener.onHideAnimationEnd();
}
}
}
@Override
public void onAnimationCancel(Animator animation) {
}
@Override
public void onAnimationRepeat(Animator animation) {
}
});
anim.start();
}
public void show(View triggerView, View showView) {
actionOtherVisible(true, triggerView, showView);
}
public void hide(View triggerView, View hideView) {
actionOtherVisible(false, triggerView, hideView);
}
public void setAnimListener(AnimListener listener) {
mListener = listener;
}
}