Question

我正在编写一个Android应用程序，并且有一个视频作为启动屏幕，但是每当我在平板电脑上打开该应用程序时，在视频播放期间屏幕都会变黑。初始屏幕在电话和虚拟设备（电话和平板电脑模拟器）上都可以正常工作，但是在任何物理平板电脑上，只能看到黑屏。

我已经为初始屏幕提供了清单文件和Java文件。难道我做错了什么？视频初始屏幕与常规静态照片初始屏幕是否有所不同？

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myPackage">
<uses-permission android:name="android.permission.INTERNET" />
<application
    android:allowBackup="true"
    android:hardwareAccelerated="false"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:largeHeap="true"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".SplashScreen"
        android:configChanges="orientation"
        android:screenOrientation="portrait"
        android:theme="@android:style/Theme.Light">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity
        android:name=".HomeActivity"
        android:label="@string/title_activity_home"
        android:theme="@style/AppTheme.NoActionBar"
        android:configChanges="orientation"
        android:screenOrientation="portrait"/>

    <activity
        android:name=".InfoActivity"
        android:configChanges="orientation"
        android:screenOrientation="portrait"
        android:label="@string/title_activity_info"
        android:theme="@style/AppTheme.NoActionBar">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value=".InfoActivity" />
    </activity>

    <activity
        android:name=".FixConditions"
        android:label=""
        android:configChanges="orientation"
        android:screenOrientation="portrait"
        android:theme="@style/AppTheme.NoActionBar">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value=".InfoActivity" />
    </activity>

    <activity
        android:name=".WebViewSignUp"
        android:configChanges="orientation"
        android:screenOrientation="portrait"
        android:label=""
        android:theme="@style/AppTheme.NoActionBar"></activity>
</application>

SplashScreen.java

public class SplashScreen extends AppCompatActivity {
VideoView videoView;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.activity_splash_screen);
    getSupportActionBar().hide();
    videoView = (VideoView)findViewById(R.id.videoView);

    Uri video = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.into);
    videoView.setVideoURI(video);
    videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer) {
            if (isFinishing())
                return;
            startActivity(new Intent(SplashScreen.this, HomeActivity.class));
            finish();
        }
    });
    videoView.start();
    }
}

Answer 1

这是视频尺寸的问题。我不得不将宽度更改为800，将高度更改为1280。

Answer 2

android:hardwareAccelerated="false"

到

android:hardwareAccelerated="true"

SplashScreen无法在平板电脑上运行（黑屏）

2 个答案: