Android Studio-如何避免VideoView溢出其View容器？

编程问答 2022-08-13

问题描述

我在水平Linearlayout中有3个VideoView，并且我希望每个视频都播放不同的视频，每个视频只会显示其原始视频的一部分（因此，每个视频都包含在LinearLayout中，这限制了应从150dp中显示的内容至150dp）。 问题是视频重叠。作为示例，我显示了仅填充VideoView Central但侵入其他VideoView区域的代码，我已经尝试了所有方法，但不能使它们彼此不侵入。任何想法如何解决它。 注意：必须使VideoView大于其150x150dp LinearLayout容器。

在此图像中，我显示 Actual Error and Correct Result wanted 

import android.media.MediaPlayer
import android.net.Uri
import android.os.Bundle
import android.util.displayMetrics
import android.widget.MediaController
import com.uncdf.unitlife.R
import com.uncdf.unitlife.util.ActBase
import com.uncdf.unitlife.util.TestCustomVideoView
import com.uncdf.unitlife.util.Utiles

class MainActivity : ActBase() {

override fun onCreate(savedInstanceState: Bundle?) {
    try{
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        init()
    }catch (ex: java.lang.Exception){
        Utiles.manageViewException(ex,baseContext,getEventCode("0001"))
    }
}

fun init(){

    initVideo(R.id.viewVideoX2)
    
}

fun initVideo(idViewVideo : Int){
    val video = findViewById<TestCustomVideoView>(idViewVideo)

    video?.setMediaController(MediaController(this));
    video?.setonPreparedListener(MediaPlayer.OnPreparedListener() {
        // it.setVideoScalingMode(MediaPlayer.VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING)
        it.isLooping = true
        // itemInfo.videoMediaPlayer = it
    })

    val metrics = displayMetrics()
    windowManager.defaultdisplay.getMetrics(metrics)
    video?.setContainer(736,412,true)

    // "http://www.demonuts.com/Demonuts/smallvideo.mp4"
    var rutaVideo =  "android.resource://" + packageName + "/" + R.raw.smallvideo;
    video?.setVideoURI(Uri.parse(rutaVideo))
    video?.requestFocus()
    video?.seekTo(5)
    video.setZOrderMediaOverlay(false)
    // viewVideoFull?.start()

}
}



import android.content.Context;
import android.graphics.Canvas;
import android.media.MediaMetadataRetriever;
import android.net.Uri;
import android.util.AttributeSet;
import android.util.Size;
import android.widget.VideoView;

public class TestCustomVideoView extends VideoView {

private Size finalVideoSize = new Size(0,0);
private boolean isOut = false;

public TestCustomVideoView(Context context) {
    super(context);
}

public TestCustomVideoView(Context context,AttributeSet attrs) {
    super(context,attrs);
}

public TestCustomVideoView(Context context,AttributeSet attrs,int defStyle) {
    super(context,attrs,defStyle);
}

public void setContainer(int width,int height,boolean outContainer){
    this.finalVideoSize = new Size(width,height);
    setMeasuredDimension(finalVideoSize.getWidth(),finalVideoSize.getHeight());
}

@Override
public void setVideoURI(Uri uri) {

    super.setVideoURI(uri);

    if(finalVideoSize.getWidth() > 0 && finalVideoSize.getHeight() > 0)
        setMeasuredDimension(finalVideoSize.getWidth(),finalVideoSize.getHeight());
}

@Override
protected void onMeasure(int widthMeasureSpec,int heightMeasureSpec){
    if(finalVideoSize.getWidth() > 0 && finalVideoSize.getHeight() > 0)
        setMeasuredDimension(finalVideoSize.getWidth(),finalVideoSize.getHeight());
    else
        setMeasuredDimension(widthMeasureSpec,heightMeasureSpec);
}
}


    <?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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=".temporal.MainActivity">

<LinearLayout
    android:id="@+id/viewContainer"
    android:layout_width="wrap_content"
    android:layout_height="150dp"
    android:orientation="horizontal"

    android:background="@android:color/holo_orange_light"

    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintWidth_percent=".9">

    <LinearLayout
        android:layout_width="150dp"
        android:layout_height="150dp"
        android:gravity="center"

        android:background="@android:color/holo_green_light"
        android:layout_marginLeft="20dp">

        <com.uncdf.unitlife.util.TestCustomVideoView
            android:id="@+id/viewVideoX1"
            android:layout_width="150dp"
            android:layout_height="150dp"
            android:layout_gravity="center"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="150dp"
        android:layout_height="150dp"
        android:gravity="center"

        android:background="@android:color/holo_green_light"
        android:layout_marginLeft="20dp">

        <com.uncdf.unitlife.util.TestCustomVideoView
            android:id="@+id/viewVideoX2"
            android:layout_width="150dp"
            android:layout_height="150dp"
            android:layout_gravity="center"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="150dp"
        android:layout_height="150dp"
        android:gravity="center"

        android:background="@android:color/holo_green_light"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp">

        <com.uncdf.unitlife.util.TestCustomVideoView
            android:id="@+id/viewVideoX3"
            android:layout_width="150dp"
            android:layout_height="150dp"
            android:layout_gravity="center"/>

    </LinearLayout>

</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

解决方法

嘿，我偶然发现了类似的东西，而我发现的问题是VideoView本身扩展了surfaceView。因此，我选择尝试使用TextureView播放视频，这是我使用的库，它帮助我处理了错误。ScalableVideoView

让我知道您在实施此库时是否遇到任何其他问题

androidandroidandroid-videoviewcontainersoverlap