属性动画注意点

ofFloat等参数注意点

ObjectAnimator xiaoAniator = ObjectAnimator.ofFloat(llXiao, "translationX", 400f);

equals to

ObjectAnimator xiaoAniator = ObjectAnimator.ofFloat(llXiao, "translationX", 0,400f);

Animator的start方法，应该在Animator的addListener之后调用

//

ObjectAnimator xiaoAniator = ObjectAnimator.ofFloat(llXiao, "translationX", 400f,0);

xiaoAniator.setInterpolator(new AccelerateDecelerateInterpolator());

xiaoAniator.setDuration(500);

// 公共的 PropertyValuesHolder

PropertyValuesHolder holder_scaleX = PropertyValuesHolder.ofFloat("scaleX", 10f, 1f);

PropertyValuesHolder holder_scaleY = PropertyValuesHolder.ofFloat("scaleY", 10f, 1f);

PropertyValuesHolder holder_alpha = PropertyValuesHolder.ofFloat("alpha", 0.5f, 1f);

// yellow point ,400ms

PropertyValuesHolder yellowHolder_translateX = PropertyValuesHolder.ofFloat("translationX", 2000f,0);

PropertyValuesHolder yellowHolder_translateY = PropertyValuesHolder.ofFloat("translationY", -3000f,0);

final ObjectAnimator yellowAnimator = ObjectAnimator.ofPropertyValuesHolder(ivYellowView, holder_scaleX,

holder_scaleY, yellowHolder_translateX, yellowHolder_translateY, holder_alpha);

yellowAnimator.setDuration(400);

// green point, 400ms

PropertyValuesHolder greenHolder_translateX = PropertyValuesHolder.ofFloat("translationX", 1000f,0);

PropertyValuesHolder greenHolder_translateY = PropertyValuesHolder.ofFloat("translationY", 1500f,0);

final ObjectAnimator greenAnimator = ObjectAnimator.ofPropertyValuesHolder(ivGreenView, holder_scaleX,

holder_scaleY, greenHolder_translateX, greenHolder_translateY, holder_alpha);

greenAnimator.setStartDelay(100);

greenAnimator.setDuration(400);

// blue point,400ms

PropertyValuesHolder blueHolder_translateX = PropertyValuesHolder.ofFloat("translationX", -2000f,0);

PropertyValuesHolder blueHolder_translateY = PropertyValuesHolder.ofFloat("translationY", -2000f,0);

final ObjectAnimator blueAnimator = ObjectAnimator.ofPropertyValuesHolder(ivBlueView, holder_scaleX,

holder_scaleY, blueHolder_translateX, blueHolder_translateY, holder_alpha);

blueAnimator.setStartDelay(200);

blueAnimator.setDuration(400);

// Slogan,400ms

PropertyValuesHolder sloganHolder_scaleX = PropertyValuesHolder.ofFloat("scaleX", 5f, 1f);

PropertyValuesHolder sloganHolder_scaleY = PropertyValuesHolder.ofFloat("scaleY", 5f, 1f);

PropertyValuesHolder sloganHolder_translateX = PropertyValuesHolder.ofInt("translationX", -2000);

final ObjectAnimator sloganAnimator = ObjectAnimator.ofPropertyValuesHolder(ivSlogan, sloganHolder_scaleX,

sloganHolder_scaleY, sloganHolder_translateX);

sloganAnimator.setDuration(400);

/**

* startAnimator

*/

xiaoAniator.addListener(new AnimatorListenerAdapter() {

@Override

public void onAnimationStart(Animator animation) {

llXiao.setVisibility(View.VISIBLE);

}

@Override

public void onAnimationEnd(Animator animation) {

greenAnimator.addListener(new AnimatorListenerAdapter() {

@Override

public void onAnimationEnd(Animator animation) {

ivSlogan.setVisibility(View.VISIBLE);

sloganAnimator.start();

}

});

sloganAnimator.addListener(new AnimatorListenerAdapter() {

@Override

public void onAnimationEnd(Animator animation) {

new Handler().postDelayed(new Runnable() {

@Override

public void run() {

runJob(new VersionCheckJob(PackageUtils.getVersionName(context)));

}

}, 300);

notAnimation = false;

}

});

yellowAnimator.addListener(new AnimatorListenerAdapter() {

@Override

public void onAnimationStart(Animator animation) {

ivYellowView.setVisibility(View.VISIBLE);

}

});

blueAnimator.addListener(new AnimatorListenerAdapter() {

@Override

public void onAnimationStart(Animator animation) {

ivBlueView.setVisibility(View.VISIBLE);

}

});

greenAnimator.addListener(new AnimatorListenerAdapter() {

@Override

public void onAnimationStart(Animator animation) {

ivGreenView.setVisibility(View.VISIBLE);

}

});

yellowAnimator.start();

greenAnimator.start();

blueAnimator.start();

}

});

xiaoAniator.start();

想要进一步了解属性动画请戳：

属性动画进阶