UIView Animation動畫是iOS開發(fā)中最常用的動畫類,下面總結(jié)一下UIView Animation動畫的基本用法。
UIView Animation動畫的常用方法
//方法一
[UIView animateWithDuration:4.0 // 動畫時長
animations:^{
// code
}];
//方法二
[UIView animateWithDuration:4.0 // 動畫時長
animations:^{
// code...
}
completion:^(BOOL finished) {
// 動畫完成后執(zhí)行
// code...
}];
//方法三
[UIView animateWithDuration:4.0 // 動畫時長
delay:2.0 // 動畫延遲
options:UIViewAnimationOptionCurveEaseIn // 動畫過渡效果
animations:^{
// code...
}
completion:^(BOOL finished) {
// 動畫完成后執(zhí)行
// code...
}];
//方法四(在IOS7開始,系統(tǒng)動畫效果廣泛應(yīng)用Spring Animation :)
[UIView animateWithDuration:4.0 // 動畫時長
delay:0.0 // 動畫延遲
usingSpringWithDamping:1.0 // 彈簧的阻尼 0~1(如果為1動畫則平穩(wěn)減速動畫沒有振蕩)
initialSpringVelocity:5.0 // 彈簧的速率(數(shù)值越小,動力越小,彈簧的拉伸幅度就越小。反之相反。比如:總共的動畫運行距離是200 pt,你希望每秒 100pt 時,值為 0.5;)
options:UIViewAnimationOptionCurveEaseInOut // 動畫過渡效果
animations:^{
// code...
CGPoint point = _imageView.center;
point.y += 150;
[_imageView setCenter:point];
} completion:^(BOOL finished) {
// 動畫完成后執(zhí)行
// code...
[_imageView setAlpha:1];
}];
動畫效果相關(guān):
UIViewAnimationOptionLayoutSubviews //提交動畫的時候布局子控件,表示子控件將和父控件一同動畫。
UIViewAnimationOptionAllowUserInteraction //動畫時允許用戶交流,比如觸摸
UIViewAnimationOptionBeginFromCurrentState //從當(dāng)前狀態(tài)開始動畫
UIViewAnimationOptionRepeat //動畫無限重復(fù)
UIViewAnimationOptionAutoreverse //執(zhí)行動畫回路,前提是設(shè)置動畫無限重復(fù)
UIViewAnimationOptionOverrideInheritedDuration //忽略外層動畫嵌套的執(zhí)行時間
UIViewAnimationOptionOverrideInheritedCurve //忽略外層動畫嵌套的時間變化曲線
UIViewAnimationOptionAllowAnimatedContent //通過改變屬性和重繪實現(xiàn)動畫效果,如果key沒有提交動畫將使用快照
UIViewAnimationOptionShowHideTransitionViews //用顯隱的方式替代添加移除圖層的動畫效果
UIViewAnimationOptionOverrideInheritedOptions //忽略嵌套繼承的選項
時間函數(shù)曲線相關(guān):
UIViewAnimationOptionCurveEaseInOut //時間曲線函數(shù),由慢到快
UIViewAnimationOptionCurveEaseIn //時間曲線函數(shù),由慢到特別快
UIViewAnimationOptionCurveEaseOut //時間曲線函數(shù),由快到慢
UIViewAnimationOptionCurveLinear //時間曲線函數(shù),勻速
轉(zhuǎn)場動畫相關(guān)的:
UIViewAnimationOptionTransitionNone //無轉(zhuǎn)場動畫
UIViewAnimationOptionTransitionFlipFromLeft //轉(zhuǎn)場從左翻轉(zhuǎn)
UIViewAnimationOptionTransitionFlipFromRight //轉(zhuǎn)場從右翻轉(zhuǎn)
UIViewAnimationOptionTransitionCurlUp //上卷轉(zhuǎn)場
UIViewAnimationOptionTransitionCurlDown //下卷轉(zhuǎn)場
UIViewAnimationOptionTransitionCrossDissolve //轉(zhuǎn)場交叉消失
UIViewAnimationOptionTransitionFlipFromTop //轉(zhuǎn)場從上翻轉(zhuǎn)
UIViewAnimationOptionTransitionFlipFromBottom //轉(zhuǎn)場從下翻轉(zhuǎn)
UIView Animation過渡動畫
view 參與轉(zhuǎn)換的視圖
<1>
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[self.view addSubview:view];
view.center = self.view.center;
view.backgroundColor = [UIColor redColor];
UIView *view_1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
view_1.backgroundColor = [UIColor yellowColor];
[UIView transitionWithView:view
duration:3
options:UIViewAnimationOptionTransitionCurlUp
animations:^{
[view addSubview:view_1];
} completion:^(BOOL finished) {
}];

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<2>
UIView *baseView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[self.view addSubview:baseView];
baseView.center = self.view.center;
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[baseView addSubview:view];
view.backgroundColor = [UIColor redColor];
UIView *view_1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
view_1.backgroundColor = [UIColor yellowColor];
[UIView transitionFromView:view //開始的視圖
toView:view_1 //轉(zhuǎn)換后的視圖
duration:2
options:UIViewAnimationOptionTransitionFlipFromLeft completion:^(BOOL finished) {
}];

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UIView Animation關(guān)鍵幀動畫
UIView關(guān)鍵幀動畫的兩個方法
//duration 總持續(xù)時間
//UIViewKeyframeAnimationOptions options 枚舉 下面說明
//frameStartTime 相對開始時間
//frameDuration 相對持續(xù)時間
+ (void)animateKeyframesWithDuration:(NSTimeInterval)duration
delay:(NSTimeInterval)delay
options:(UIViewKeyframeAnimationOptions)options
animations:(void (^)(void))animations
completion:(void (^ __nullable)(BOOL finished))completion;
+ (void)addKeyframeWithRelativeStartTime:(double)frameStartTime
relativeDuration:(double)frameDuration
animations:(void (^)(void))animations;
//UIViewKeyframeAnimationOptions 枚舉說明
UIViewKeyframeAnimationOptionLayoutSubviews //提交動畫的時候布局子控件,表示子控件將和父控件一同動畫。
UIViewKeyframeAnimationOptionAllowUserInteraction //動畫時允許用戶交流,比如觸摸 UIViewKeyframeAnimationOptionBeginFromCurrentState //從當(dāng)前狀態(tài)開始動畫
UIViewKeyframeAnimationOptionRepeat //動畫無限重復(fù)
UIViewKeyframeAnimationOptionAutoreverse //執(zhí)行動畫回路,前提是設(shè)置動畫無限重復(fù)
UIViewKeyframeAnimationOptionOverrideInheritedDuration //忽略外層動畫嵌套的執(zhí)行時間
UIViewKeyframeAnimationOptionOverrideInheritedOptions //忽略嵌套繼承的選項
//關(guān)鍵幀動畫獨有
UIViewKeyframeAnimationOptionCalculationModeLinear //選擇使用一個簡單的線性插值計算的時候關(guān)鍵幀之間的值。
UIViewKeyframeAnimationOptionCalculationModeDiscrete //選擇不插入關(guān)鍵幀之間的值,而是直接跳到每個新的關(guān)鍵幀的值。
UIViewKeyframeAnimationOptionCalculationModePaced //選擇計算中間幀數(shù)值算法使用一個簡單的節(jié)奏。這個選項的結(jié)果在一個均勻的動畫。
UIViewKeyframeAnimationOptionCalculationModeCubic //選擇計算中間幀使用默認卡特莫爾羅花鍵,通過關(guān)鍵幀的值。你不能調(diào)整該算法的參數(shù)。 這個動畫好像會更圓滑一些..
UIViewKeyframeAnimationOptionCalculationModeCubicPaced //選擇計算中間幀使用立方計劃而忽略的時間屬性動畫。相反,時間參數(shù)計算隱式地給動畫一個恒定的速度。
相關(guān)實例:
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(20, 20, 50, 50)];
view.backgroundColor = [UIColor orangeColor];
[self.view addSubview:view];
[UIView animateKeyframesWithDuration:3 delay:3 options:UIViewKeyframeAnimationOptionRepeat animations:^{
[UIView addKeyframeWithRelativeStartTime:0 relativeDuration:.3 animations:^{
view.frame = CGRectMake(20, 100, 100, 100);
}];
[UIView addKeyframeWithRelativeStartTime:.3 relativeDuration:.6 animations:^{
view.frame = CGRectMake(60, 100, 80, 80);
}];
[UIView addKeyframeWithRelativeStartTime:.6 relativeDuration:1 animations:^{
view.frame = CGRectMake(20, 20, 50, 50);
}];
} completion:^(BOOL finished) {
}];

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UIView Animation兩個移除視圖方法
//刪除視圖上的子視圖 animation這個枚舉只有一個刪除值...
//views數(shù)組中的view 會讓那個視圖變模糊、收縮和褪色, 之后再給它發(fā)送 removeFromSuperview 方法。
+ (void)performSystemAnimation:(UISystemAnimation)animation
onViews:(NSArray *)views
options:(UIViewAnimationOptions)options
animations:(void (^ __nullable)(void))parallelAnimations completion:(void (^ __nullable)(BOOL finished))completion
//在動畫block中不執(zhí)行動畫的代碼
+ (void)performWithoutAnimation:(void (NS_NOESCAPE ^)(void))actionsWithoutAnimation
相關(guān)實例:
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(20, 20, 50, 50)];
view.backgroundColor = [UIColor orangeColor];
UIView *view_1 = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 20, 20)];
[view addSubview:view_1];
view_1.backgroundColor = [UIColor redColor];
[self.view addSubview:view];
[UIView animateKeyframesWithDuration:3 delay:3 options:UIViewKeyframeAnimationOptionRepeat|UIViewKeyframeAnimationOptionAutoreverse animations:^{
view.frame = CGRectMake(100, 100, 50, 50);
[UIView performWithoutAnimation:^{
view.backgroundColor = [UIColor blueColor];
}];
} completion:^(BOOL finished) {
}];
[UIView performSystemAnimation:UISystemAnimationDelete
onViews:@[view_1]
options:0
animations:^{
view_1.alpha = 0;
} completion:^(BOOL finished) {
}];

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