fragment add animation effect

Answer 1

There are many ways to add animation effects to Fragments in Android:

** 1. Use the animation switching effect that comes with the system **
1. ** Set the standard animation with the `setTransformation` method **
- First, get the `Fragmenttransaction` object, for example,`Fragmenttransaction Fragmenttransaction = mFragmentManager.beginTransaction();`.
- Then use the `setTransformation` method to set the animation effect. The `transit` parameters in the `setTransformation` method have the following options:
- 'FragmentTransaction. Transform_NONE': No animation.
- `FragmentTransaction. Transform_FraGtment_Open`: Open the standard animation effect.
- `FragmentTransaction. Transform_FraGtment_Close`: The standard animation effect is turned off. After the standard animation was set, there would be corresponding animation effects when adding and removing Fragments.

** 2. Use custom animation to switch effects **
1. ** Set a custom animation with the `setCivilAnimation` method **
- Similarly, get the `Fragmenttransaction` object first, such as `Fragmenttransaction Fragmenttransaction = mFragmentManager.beginTransaction();`.
- Then, use the `setCivilAnimation` method to set a custom animation, for example,`FragmentTransaction. setCivilAnimation ()();` The custom animation effect here is similar to the custom animation in the Activity.
2. ** Set the animation with the `onCreate Animation` method **
- Rewrite the `onCreate Animation` method in Fragment to set the animation effect. For example:
```java
@Override
public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {
if (enter) {
return AnimationUtils.loadAnimation(getContext(), R.anim.enter_animation);
} else {
return super.onCreateAnimation(transit, enter, nextAnim);
}
}
```
- In this example, it is determined whether to enter the animation or exit the animation according to the `enter` argument. If it is an entry animation, it will load the previously defined entry animation (such as `enter_animation`) through the `animationUtils.

3. ** Use the Xml to define the animation and apply it to the Fragment**
- You can create a folder named `anim` under the `res` folder and define the animation's XM-files in it. For example, to define a gradual transition into an animation:
```xml

```
- Here, the `set` tag is used to define an animation set. The `alpha` tag is used to define the change in the degree of the animation's clarity. The `fromAlpha` attribute indicates the initial level of the animation's clarity. The `toAlpha` attribute indicates the target level of the animation's clarity. The `duration` attribute indicates the duration of the animation. Then, you can load the animation defined in the XMMM and apply it to the Fragment through a suitable method (such as the `onCreate Animation` method).

4. ** Add the animation settings for entering and exiting Fragments in `values/styles.xml`**
- You can also set the animation of entering and leaving Fragments in `values/styles.xml`, but the specific setting method needs to be written according to the actual needs of the corresponding style attributes.

In addition, in Android, Fragments have different types of animation effects that can be added, including enter animation (the animation effect that appears when a Fragment is added to an Activity), exit animation (the animation effect that appears when a Fragment is removed from an Activity), pop animation (pop enter animation, the animation effect that appears when a Fragment is ejected from the back stack), and pop animation (pop exit animation, the animation effect that appears when a Fragment is pushed into the back stack). At the same time, some of the Material dynamic effects (including container conversion, shared axis, fade, fade, and other transition effects) implemented by the Material Design component can also be used during Fragment switching.
Read more exciting novels for free