一手遮天 Android - Fragment: Fragment 动画
示例如下:
/fragment/FragmentDemo4.java
/**
* Fragment 动画
*
* 通过 setCustomAnimations() 来指定 fragment 的切换动画
* 第 1 个参数：新增的 fragment 的动画
* 第 2 个参数：移除的 fragment 的动画
* 第 3 个参数：popBackStack 时，显示的 fragment 的动画
* 第 4 个参数：popBackStack 时，移除的 fragment 的动画
*/
package com.webabcd.androiddemo.fragment;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import com.webabcd.androiddemo.R;
public class FragmentDemo4 extends AppCompatActivity {
private Button mButton1;
private Button mButton2;
private Button mButton3;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fragment_fragmentdemo4);
mButton1 = findViewById(R.id.button1);
mButton2 = findViewById(R.id.button2);
mButton3 = findViewById(R.id.button3);
sample();
}
private void sample() {
// add a fragment
mButton1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragmentManager = getSupportFragmentManager();
Fragment fragment = fragmentManager.findFragmentByTag("myTag");
if (fragment == null) {
fragmentManager
.beginTransaction()
.setCustomAnimations(R.anim.activity_push_left_in, R.anim.activity_push_left_out, R.anim.activity_zoom_enter, R.anim.activity_zoom_exit)
.add(R.id.container, new Fragment4_1(), "myTag")
.addToBackStack(null)
.commit();
}
}
});
// replace the fragment
mButton2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager fragmentManager = getSupportFragmentManager();
Fragment fragment = fragmentManager.findFragmentByTag("myTag");
if (fragment != null) {
fragmentManager
.beginTransaction()
.setCustomAnimations(R.anim.fragment_push_left_in, R.anim.fragment_push_left_out, R.anim.fragment_zoom_enter, R.anim.fragment_zoom_exit)
.replace(R.id.container, new Fragment4_1(), "myTag")
.addToBackStack(null)
.commit();
}
}
});
// popBackStack()
mButton3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
getSupportFragmentManager().popBackStack();
}
});
}
}
/layout/activity_fragment_fragmentdemo4.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:text="add a fragment"/>
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:text="replace the fragment"/>
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAllCaps="false"
android:text="popBackStack()"/>
</LinearLayout>
/anim/activity_push_left_in.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="500"
android:fromXDelta="100%p"
android:toXDelta="0">
</translate>
</set>
/anim/activity_push_left_out.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="500"
android:fromXDelta="0"
android:toXDelta="-100%p">
</translate>
</set>
/anim/activity_zoom_enter.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/decelerate_interpolator">
<alpha
android:duration="500"
android:fromAlpha="0"
android:toAlpha="1.0">
</alpha>
<scale
android:duration="500"
android:fromXScale="2.0"
android:fromYScale="2.0"
android:pivotX="50%p"
android:pivotY="50%p"
android:toXScale="1.0"
android:toYScale="1.0">
</scale>
</set>
/anim/activity_zoom_exit.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/decelerate_interpolator">
<alpha
android:duration="500"
android:fromAlpha="1.0"
android:toAlpha="0">
</alpha>
<scale
android:duration="500"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:pivotX="50%p"
android:pivotY="50%p"
android:toXScale="0"
android:toYScale="0">
</scale>
</set>
/anim/fragment_push_left_in.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="500"
android:fromXDelta="100%p"
android:toXDelta="0">
</translate>
</set>
/anim/fragment_push_left_out.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="500"
android:fromXDelta="0"
android:toXDelta="-100%p">
</translate>
</set>
/anim/fragment_zoom_enter.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/decelerate_interpolator">
<alpha
android:duration="500"
android:fromAlpha="0"
android:toAlpha="1.0">
</alpha>
<scale
android:duration="500"
android:fromXScale="2.0"
android:fromYScale="2.0"
android:pivotX="50%p"
android:pivotY="50%p"
android:toXScale="1.0"
android:toYScale="1.0">
</scale>
</set>
/anim/fragment_zoom_exit.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/decelerate_interpolator">
<alpha
android:duration="500"
android:fromAlpha="1.0"
android:toAlpha="0">
</alpha>
<scale
android:duration="500"
android:fromXScale="1.0"
android:fromYScale="1.0"
android:pivotX="50%p"
android:pivotY="50%p"
android:toXScale="0"
android:toYScale="0">
</scale>
</set>