[Android] Switch Activity with Transition Animation

這篇要來寫如何切換 Activity ，另外在切換的時候還可以加入轉場的特效。

首先在 res/ 建立一個 anim 資料夾 (一定要用 anim 命名)

並且在裡面依照想要的轉場效果，建立對應的 xml

由右滑入 slide_in_right.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="200" />
</set>

向右滑出 slide_out_right.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromXDelta="0"
        android:toXDelta="100%"
        android:duration="200" />
</set>

如果想要其他特效，在這篇文章最後面會寫。

在 res/layout 建立一個 xml 給第二個 activity 用

activity_second.xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">
 
    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:text="Second Activity"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
 
    <Button
        android:id="@+id/id_btn01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:text="Back"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView"
        android:onClick="onClickGoActivityFromSecond"/>
 
</android.support.constraint.ConstraintLayout>

然後在 java 資料夾裡面加入第二個 activity.java
SecondActivity.java:

public class SecondActivity extends AppCompatActivity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
 
    }
 
    public void onClickGoActivityFromSecond(View v){
        finish();
        overridePendingTransition(R.anim.none, R.anim.slide_out_right);
    }
}

其中在這行可以選擇切換時想要的轉場特效
overridePendingTransition(R.anim.slide_in_right, R.anim.none);

在主要的 main activity 裡設定一個按鈕按下去切換到第二個 Activity
activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.chris.myapplication.MainActivity">
 
    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:text="MainActivity"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
 
    <Button
        android:id="@+id/id_btn01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:text="Go Second"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView"
        android:onClick="onClickGoActivityFromMain"/>
 
</android.support.constraint.ConstraintLayout>
 

MainActivity:

public class MainActivity extends AppCompatActivity{
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
    }
 
    public void onClickGoActivityFromMain(View v){
        startActivity(new Intent(this, SecondActivity.class));
        overridePendingTransition(R.anim.slide_in_right, R.anim.none);
    }
}

最後記得在 AndroidManifest.xml 裡面註冊第二個 Activity

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.chris.myapplication">
 
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
 
        <activity
            android:name=".SecondActivity"
            android:screenOrientation="portrait">
        </activity>
 
    </application>
</manifest>

附上其他的轉場效果 xml 的寫法
無效果 none.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="0"
        android:toYDelta="0%"
        android:duration="300" />
</set>

淡入 fade_in.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <alpha
        android:fromAlpha="0.0"
        android:toAlpha="1.0"
        android:duration="300" />
</set>

淡出 fade_out.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <alpha
        android:fromAlpha="1.0"
        android:toAlpha="0.0"
        android:duration="300" />
</set>

由下滑入 slide_in_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="100%"
        android:toYDelta="0"
        android:duration="300" />
</set>

由左滑入 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="200" />
</set>

由右滑入 slide_in_right.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="200" />
</set>

由上滑入 slide_in_top.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="-100%"
        android:toYDelta="0"
        android:duration="300" />
</set>

由上滑入淡入 slide_in_top_fade.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="-100%"
        android:toYDelta="0"
        android:duration="500" />
    <alpha
        android:fromAlpha="0"
        android:toAlpha="1.0"
        android:duration="250"
        android:repeatMode="reverse"
        android:startOffset="0" />
</set>

向下滑出 slide_out_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="0"
        android:toYDelta="-100%"
        android:duration="300" />
</set>

向左滑出 slide_out_left.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromXDelta="0"
        android:toXDelta="-100%"
        android:duration="200" />
</set>

向右滑出 slide_out_right.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromXDelta="0"
        android:toXDelta="100%"
        android:duration="200" />
</set>

向上滑出 slide_out_top.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="0"
        android:toYDelta="100%"
        android:duration="300" />
</set>

向上滑出淡出 slide_out_top_fade.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:fromYDelta="0"
        android:toYDelta="100%"
        android:duration="650" />
    <alpha
        android:fromAlpha="1.0"
        android:toAlpha="0"
        android:duration="500"
        android:repeatCount="1"
        android:repeatMode="reverse"
        android:startOffset="0" />
</set>

END