Question

我有以下代码，用于设置片段的输入和退出动画。

final FragmentManager manager = getSupportFragmentManager();
final FragmentTransaction ft = manager.beginTransaction();
    ft.setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_left, R.anim.slide_in_left, R.anim.slide_out_right);
    ft.replace(R.id.container, fragment, tag);
    ft.addToBackStack(tag);
    ft.commitAllowingStateLoss();

slide_in_left.xml

<?xml version="1.0" encoding="utf-8"?>

<set xmlns:android="http://schemas.android.com/apk/res/android">

    <translate android:fromXDelta="-100%"
    android:toXDelta="0%"
    android:duration="@integer/slide_anim_duration" />

</set>

对所有其他动画使用相同的方法。在所有其他版本中工作正常，但问题仅在于Lollipop。当我们看到功能
时 setCustomAnimations (int enter, int exit, int popEnter, int popExit) doc-link，
enter和exit工作正常，但“棒棒糖”中popEnter和popExit失败。
请指导我出现问题并提供适用于Android 2.3到5.1的兼容解决方案

更新

仔细观察，似乎动画就在那里，但持续时间没有效果。

Answer 1

片段动画甚至在L之前就被破坏了 - 改变屏幕方向时会出现一些问题。

以下解决方案修复了L问题和早期方向更改问题。将它用作基础Fragment类。

public abstract class AnimatedSupportFragment extends DaggerFragment {

    private static final String STATE_ENTER_ANIM = "STATE_ENTER_ANIM";
    private static final String STATE_EXIT_ANIM = "STATE_EXIT_ANIM";
    private static final String STATE_POP_ENTER_ANIM = "STATE_POP_ENTER_ANIM";
    private static final String STATE_POP_EXIT_ANIM = "STATE_POP_EXIT_ANIM";
    private static final String STATE_CHANGING_CONFIGURATIONS = "STATE_CHANGING_CONFIGURATIONS";

    private @AnimRes int mEnter = 0;
    private @AnimRes int mExit = 0;
    private @AnimRes int mPopEnter = 0;
    private @AnimRes int mPopExit = 0;
    private boolean mIsChangingConfigurations = false;

    public void setCustomAnimations(@AnimRes int enterAnim,
                                    @AnimRes int exitAnim,
                                    @AnimRes int popEnterAnim,
                                    @AnimRes int popExitAnim) {
        mEnter = enterAnim;
        mExit = exitAnim;
        mPopEnter = popEnterAnim;
        mPopExit = popExitAnim;
    }

    @Override public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (savedInstanceState != null) {
            mEnter = savedInstanceState.getInt(STATE_ENTER_ANIM);
            mExit = savedInstanceState.getInt(STATE_EXIT_ANIM);
            mPopEnter = savedInstanceState.getInt(STATE_POP_ENTER_ANIM);
            mPopExit = savedInstanceState.getInt(STATE_POP_EXIT_ANIM);
            mIsChangingConfigurations = savedInstanceState.getBoolean(STATE_CHANGING_CONFIGURATIONS);
        }
    }

    @Override public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt(STATE_ENTER_ANIM, mEnter);
        outState.putInt(STATE_EXIT_ANIM, mExit);
        outState.putInt(STATE_POP_ENTER_ANIM, mPopEnter);
        outState.putInt(STATE_POP_EXIT_ANIM, mPopExit);
        outState.putBoolean(STATE_CHANGING_CONFIGURATIONS, mIsChangingConfigurations);
    }

    @Override public void onResume() {
        super.onResume();
        mIsChangingConfigurations = false;
    }

    @Override public void onPause() {
        super.onPause();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            mIsChangingConfigurations = getActivity().isChangingConfigurations();
        }
    }

    @SuppressLint("NewApi")
    @Override public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {

        // This implementation fixes loosing transition animations on orientation changes:
        // @see http://stackoverflow.com/questions/8837408/fragment-lost-transition-animation-after-configuration-change
        // @see https://code.google.com/p/android/issues/detail?id=25994&can=4&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
            // Do not support animations PRE-3.0, isChangingConfigurations() is not available!
            return null;
        }

        try {
            int anim;
            if (mIsChangingConfigurations) {
                // Recreating after change configuration, we don't want to play animation
                anim = 0;
            } else if (nextAnim != 0) {
                // Animation available (not lost) -> play it!
                anim = nextAnim;
            } else {
                // Animation probably lost - load anim saved in fragment state.
                // enter = we're about to play popEnterAnim, in other case popExitAnimation
                anim = enter ? mPopEnter : mPopExit;
            }
            if (anim != 0) {
                return AnimationUtils.loadAnimation(getActivity(), anim);
            }
        } catch (Exception ignore) {}

        return null;
    }
}

Answer 2

你还可以在所有片段中尝试onCreateAnimator ..或者他们正在扩展的基础片段......

@target_api 20 or higher

@Override
    public Animator onCreateAnimator(int transit, boolean enter, int nextAnim) {
        if (enter) {
            return AnimatorInflater.loadAnimator(getActivity(), R.animator.slide_in_top);
        } else {
            return AnimatorInflater.loadAnimator(getActivity(), R.animator.fade_out);
        }
    }

注意以上动画师都是预先定义的，R还有android.R

希望这会有所帮助干杯！

Answer 3

如果您将持续时间设置为2000，您将看到动画，但我认为它太慢了。这是我的代码：

<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromXDelta="-100%p"
    android:toXDelta="0"
    android:interpolator="@android:anim/decelerate_interpolator"
    android:duration="2000" />

你可以减少持续时间，但你会看到更少的动画。

Answer 4

我找到了另一个解决方案，它没有制作完全相同的动画，但非常相似，我喜欢这个动画比传统幻灯片更多这是我做动画的代码：

     private Fragment fragment=new Fragment();
 private FragmentManager fragmentManager=getSupportFragmentManager();


private void replaceFragmentWithAnimation(){
    FragmentTransaction ft = fragmentManager.beginTransaction();
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && fragment != null) {
            Slide slideLeft = new Slide(Gravity.RIGHT);
            slideLeft.setDuration(300);
            fragment.setExitTransition(slideLeft);
        }

        fragment = CalendarFragment.newInstance(selectedDays, plusMonths);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Slide slideRight = new Slide(Gravity.RIGHT);
            slideRight.setDuration(350);
            fragment.setEnterTransition(slideRight);

        } else {
           ft.setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_right);
        }
        ft.replace(calendarDaysContFL.getId(), fragment);
        ft.commit();
    }

Answer 5

这是工作解决方案：修改版@jskierbi回答。

import android.support.v4.app.Fragment;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;


/**
 * @author : Pedramrn@gmail.com Created on: 2016-02-19
 */
public class SupportBaseFragment extends Fragment {

private boolean mIsChangingConfigurations = false;
private static final String STATE_CHANGING_CONFIGURATIONS = "STATE_CHANGING_CONFIGURATIONS";

@Override
public void onResume() {
    super.onResume();
    mIsChangingConfigurations = false;
}

@Override
public void onPause() {
    super.onPause();
    mIsChangingConfigurations = getActivity().isChangingConfigurations();
}


@Override
public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {
    if (mIsChangingConfigurations)
        return null;
    if (enter)
        return AnimationUtils.loadAnimation(getContext(), nextAnim == 0 ? R.anim.enter_pop : nextAnim);
    else
        return AnimationUtils.loadAnimation(getContext(), nextAnim == 0 ? R.anim.exit_pop : nextAnim);
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (savedInstanceState != null) {
        mIsChangingConfigurations = savedInstanceState.getBoolean(STATE_CHANGING_CONFIGURATIONS);
    }
}

@Override
public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putBoolean(STATE_CHANGING_CONFIGURATIONS, mIsChangingConfigurations);
}

enter.xml

<?xml version="1.0" encoding="utf-8"?>
<set>
    <translate xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromXDelta="100%"
        android:interpolator="@android:anim/decelerate_interpolator"
        android:toXDelta="0"/>
</set>

enter_pop.xml

<?xml version="1.0" encoding="utf-8"?>
<set>
    <translate xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromXDelta="-100%"
        android:interpolator="@android:anim/decelerate_interpolator"
        android:toXDelta="0"/>
</set>

exit.xml

<?xml version="1.0" encoding="utf-8"?>
<set>
    <translate xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromXDelta="0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toXDelta="-100%"/>
</set>

exit_pop.xml

<?xml version="1.0" encoding="utf-8"?>
<set>
    <translate xmlns:android="http://schemas.android.com/apk/res/android"
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromXDelta="0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toXDelta="100%"/>
</set>

用法：

getSupportFragmentManager()
                .beginTransaction()
                .setCustomAnimations(R.anim.enter, R.anim.exit,
                        R.anim.enter_pop, R.anim.exit_pop)
                .replace(R.id.fragment_container, myFancyFragment)
                .addToBackStack(null)
                .commit();

片段customAnimation在Lollipop中不起作用

5 个答案: