第14天~

自己写看看转场-0.0从空白开始

从res右键选transition

再从Transition去新增File

Manager改成Set

Manager改成Set

可以参考官方文件-
https://developer.android.com/reference/android/transition/Transition

再到第一页的MainActivity.java档新增

package com.huang.mytransition;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityOptionsCompat;

import android.content.Intent;
import android.os.Bundle;
import android.transition.Transition;
import android.transition.TransitionInflater;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //建立动画
      Transition explode = TransitionInflater.from(this).inflateTransition(android.R.transition.explode);
      Transition slide = TransitionInflater.from(this).inflateTransition(android.R.transition.slide_bottom);
        Transition fade = TransitionInflater.from(this).inflateTransition(android.R.transition.fade);
        Transition myFade = TransitionInflater.from(this).inflateTransition(android.R.transition.fade);

      //指定执行时间点

        getWindow().setEnterTransition(fade);
        getWindow().setEnterTransition(fade);

    }

    public void onClick(View view) {

        Intent it = new Intent();
        it.setClass(MainActivity.this,Page2.class);
        //startActivity(it);
        startActivity(it,
                ActivityOptionsCompat.makeSceneTransitionAnimation(MainActivity.this).toBundle());
    }



    }

Page2.java档新增

package com.huang.mytransition;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityOptionsCompat;

import android.content.Intent;
import android.os.Bundle;
import android.transition.Transition;
import android.transition.TransitionInflater;
import android.view.View;

public class Page2 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_page2);

        //建立动画
        Transition explode = TransitionInflater.from(this).inflateTransition(android.R.transition.explode);
        Transition slide = TransitionInflater.from(this).inflateTransition(android.R.transition.slide_bottom);
        Transition fade = TransitionInflater.from(this).inflateTransition(android.R.transition.fade);
        Transition myFade = TransitionInflater.from(this).inflateTransition(android.R.transition.fade);

        //指定执行时间点

        getWindow().setEnterTransition(fade);
        getWindow().setEnterTransition(fade);

    }

    public void onClick(View view) {

        Intent it = new Intent();
        it.setClass(Page2.this, MainActivity.class);
        //startActivity(it);
        startActivity(it,
                ActivityOptionsCompat.makeSceneTransitionAnimation(Page2.this).toBundle());
    }
}

fade.xml档

<?xml version="1.0" encoding="utf-8"?>
<transitionSet xmlns:tools="http://schemas.android.com/tools"
    xmlns:android="http://schemas.android.com/apk/res/android"

    android:duration="500"
    android:fadingMode="fade_in_out"

    tools:ignore="MissingDefaultResource">



</transitionSet>

其实我觉得长的都一样

搜寻时要注意的
1-关键字要有github-->例如:gl-transition android github
2-年代

https://github.com/lgvalle/Material-Animations

不能整个档案开，不能~~~要用java和xml贴.因为每个人的版本不同