Android Studio (Kotlin) -切换应用程序后VideoView变黑
Android Studio (Kotlin) -切换应用程序后VideoView变黑
提问于 2021-11-11 17:00:50
我有一个非常简单的视频播放在我的主要活动的底部三分之一，循环。当应用程序最小化，然后我回到它，视频将停止播放，而是显示一个黑屏，似乎没有办法让它再次播放。(我不想要视频控件。)
这是我的MainActivity.kt：
import android.app.ActionBar
import android.graphics.Color
import android.net.Uri
import android.os.Bundle
import android.view.View
import android.widget.VideoView
import androidx.appcompat.app.AppCompatActivity
import android.widget.TextView
import android.graphics.drawable.ColorDrawable
class MainActivity : AppCompatActivity() {
// declaring a null variable for VideoView
var simpleVideoView: VideoView? = null
override fun onCreate(savedInstanceState: Bundle?){
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
supportActionBar?.setDisplayShowTitleEnabled(false)
supportActionBar?.hide()
// assigning id of VideoView from
// activity_main.xml layout file
simpleVideoView = findViewById<View>(R.id.videoView) as VideoView
// set the absolute path of the video file which is going to be played
simpleVideoView!!.setVideoURI(Uri.parse("android.resource://"
+ packageName + "/" + R.raw.gp))
simpleVideoView!!.requestFocus()
// starting the video
simpleVideoView!!.start()
simpleVideoView!!.setOnCompletionListener { simpleVideoView!!.start() }
}
}回答 1
Stack Overflow用户
回答已采纳
发布于 2021-11-12 17:18:01
最简单的解决方案是：
类MainActivity : AppCompatActivity() {
var simpleVideoView: VideoView? = null
var currentPosition = 0
override fun onCreate(savedInstanceState: Bundle?){
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
supportActionBar?.setDisplayShowTitleEnabled(false)
supportActionBar?.hide()
simpleVideoView = findViewById<View>(R.id.videoView) as VideoView
simpleVideoView!!.setVideoURI(Uri.parse("android.resource://"
+ packageName + "/" + R.raw.gp))
simpleVideoView!!.setOnCompletionListener { simpleVideoView!!.start() }
if (savedInstanceState != null) {
var position = savedInstanceState.getInt("position")
simpleVideoView!!.seekTo(position)
}
}
override fun onStart() {
super.onStart()
if (currentPosition != 0)
simpleVideoView!!.seekTo(currentPosition)
simpleVideoView!!.start()
}
override fun onResume() {
super.onResume()
if (!simpleVideoView!!.isPlaying) {
if (currentPosition != 0)
simpleVideoView!!.seekTo(currentPosition)
simpleVideoView!!.start()
}
}
override fun onPause() {
super.onPause()
simpleVideoView!!.pause()
currentPosition = simpleVideoView!!.currentPosition
}
override fun onStop() {
simpleVideoView!!.pause()
super.onStop()
}
override fun onSaveInstanceState(outState: Bundle) {
outState.putInt("position", currentPosition)
super.onSaveInstanceState(outState)
}}
这将在旋转设备时视频离开的同一点重新启动视频。你可能想看看android上的exoplayer，而不是VideoView。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/69932141
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