开始Activity有动画黑屏

Question

您好，我在打开和完成活动时从左到右和从右到左添加动画，但是当我放置 overridePendingIntent 它显示黑屏...

这是我的left_to_right.xml动画

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">
    <translate
        android:duration="500"
        android:fromXDelta="-100%"
        android:fromYDelta="0%"
        android:toXDelta="0%"
        android:toYDelta="0%" />
</set>

这是right_to_left.xml动画

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:shareInterpolator="false">
    <translate
        android:duration="500"
        android:fromXDelta="0%"
        android:fromYDelta="0%"
        android:toXDelta="100%"
        android:toYDelta="0%" />
</set>

我正在这样开始 Activity :

startActivity(Intent(this, SignInActivity::class.java))
overridePendingTransition(R.anim.left_to_right, R.anim.right_to_left)

然后像这样完成：

finish()
overridePendingTransition(R.anim.right_to_left, R.anim.left_to_right)

但是做的时候黑屏...

这是我的主题

<resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
    <style name="Theme.MyTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/purple_500</item>
        <item name="colorPrimaryVariant">@color/purple_700</item>
        <item name="colorOnPrimary">@color/white</item>
        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/teal_200</item>
        <item name="colorSecondaryVariant">@color/teal_700</item>
        <item name="colorOnSecondary">@color/black</item>
        <!-- Status bar color. -->
        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
        <!-- Customize your theme here. -->
        <item name="android:windowDisablePreview">true</item>
    </style>
</resources>

我正在使用的活动

android:theme="@style/Theme.MaterialComponents.Light.NoActionBar"

我错过了什么？

Answer 1

第一个 ACTIVITY:

我使用 Button:

用 TargetActivity（第二个 Activity）膨胀 MainActivity 来重建情况

public class MainActivity extends AppCompatActivity {

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

        Button button_in = findViewById(R.id.button_in);
        button_in.setOnClickListener(v -> {
            Intent intent = new Intent(this, TargetActivity.class);
            startActivity(intent);
            overridePendingTransition(R.anim.slide_in_right, R.anim.slide_out_left);
        });
    }
}

activity_main.xml包含第一个Button:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="MainActivity">

    <Button
        android:id="@+id/button_in"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20sp"
        android:backgroundTint="#2962FF"
        android:text="To TargetActivity" />

</RelativeLayout>

第二个ACTIVITY:

第二个 Activity 是 finish() 的 TargetActivity，动画如下：

public class TargetActivity extends Activity {

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

        Button button_out = findViewById(R.id.button_out);
        button_out.setOnClickListener(v -> {
            this.finish();
            overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right);
        });
    }
}

还有另一个 Layout 第二个 Button 叫做 activity_target.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#FFAB00"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".TargetActivity">

    <Button
        android:id="@+id/button_out"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="20sp"
        android:textColor="#ffffff"
        android:backgroundTint="#2962FF"
        android:text="To MainActivity" />
    
</RelativeLayout>

4 动画：

您只需要 anim 文件夹中的 4 个动画。 2 表示从左到右，反之亦然。

1.) slide_in_left.xml:

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

2.) slide_out_left.xml:

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

3.) slide_in_right.xml:

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

4.) slide_out:right.xml:

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

最后不要忘记在 AndroidManifest.xml 中添加 TargetActivity:

<activity android:name=".TargetActivity"/>

开始Activity有动画黑屏

Start Activity with animation black screen

java

android

android-activity

kotlin