Java Mediaplayer在切换片段时未暂停
我是android studio的新手。请帮忙。我有一个应用程序有3个片段,一个有使用回收器适配器的视频视图列表,一个有图像视图列表,另一个有与1号片段相同的视频视图列表。第一个和最后一个片段使用相同的适配器。问题是,在将片段从第一个切换到第二个的同时,视频仍在播放Java Mediaplayer在切换片段时未暂停,java,android,android-studio,android-videoview,Java,Android,Android Studio,Android Videoview,我是android studio的新手。请帮忙。我有一个应用程序有3个片段,一个有使用回收器适配器的视频视图列表,一个有图像视图列表,另一个有与1号片段相同的视频视图列表。第一个和最后一个片段使用相同的适配器。问题是,在将片段从第一个切换到第二个的同时,视频仍在播放 //fragment code public class funny_moments extends Fragment { FirebaseDatabase database = FirebaseDatabase.getInst
//fragment code
public class funny_moments extends Fragment {
FirebaseDatabase database = FirebaseDatabase.getInstance();
DatabaseReference myRef = database.getReference("funnymomments");
ArrayList<funny_momments_row> data;
funny_momments_adapter adapter;
VideoView mVideoView;
View pos;
private RecyclerView mRecyclerView;
public funny_moments() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_funny_moments, container, false);
mRecyclerView =(RecyclerView) view.findViewById(R.id.recylerview);
mVideoView = (VideoView)view.findViewById(R.id.videoView);
data = new ArrayList<>();
myRef.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for (DataSnapshot videoSnapshot : dataSnapshot.getChildren()){
funny_momments_row video = new funny_momments_row(videoSnapshot.child("like").getValue().toString(),videoSnapshot.child("url").getValue().toString());
data.add(video);
}
adapter = new funny_momments_adapter(getActivity(),data,mCommunication);
mRecyclerView.setAdapter(adapter);
mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
// Inflate the layout for this fragment
return view;
}
@Override
public void onPause() {
adapter.mMediaPlayer.pause();
super.onPause();
}
//adapter code
public class funny_momments_adapter extends RecyclerView.Adapter<funny_momments_adapter.funnyVideoHolder> {
private final LayoutInflater inflator;
List<funny_momments_row> data = Collections.emptyList();
communication mCommunicator;
Context mContext;
public funny_momments_adapter(Context context, List<funny_momments_row> data, communication communicator){
inflator = LayoutInflater.from(context);
this.data = data;
this.mContext = context;
mCommunicator = communicator;
}
@NonNull
@Override
public funnyVideoHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view = inflator.inflate(R.layout.funny_momments_row,viewGroup,false);
funnyVideoHolder funnyHolder = new funnyVideoHolder(view,mCommunicator);
return funnyHolder;
}
@Override
public void onBindViewHolder(@NonNull final funnyVideoHolder viewHolder, int i) {
funny_momments_row current = data.get(i);
VideoView f1 = viewHolder.mVideoView;
viewHolder.mVideoView.setVideoURI(Uri.parse(current.getUrl()));
viewHolder.likecount.setText(current.getLike());
viewHolder.mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(final MediaPlayer mp) {
FragmentManager manager = ((AppCompatActivity)mContext).getSupportFragmentManager();
Fragment f = manager.findFragmentByTag("android:switcher:" + R.id.viewPager + ":" + 2);
mMediaPlayer = mp;
viewHolder.playpause.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mp.isPlaying()) {
mp.pause();
}
else {
mp.start();
}
}
});
}
});
viewHolder.playpause.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (viewHolder.mVideoView.isPlaying()) {
viewHolder.mVideoView.requestFocus();
viewHolder.mVideoView.pause();
}
else {
viewHolder.mVideoView.requestFocus();
viewHolder.mVideoView.start();
}
}
});
}
@Override
public int getItemCount() {
return data.size();
}
public class funnyVideoHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
VideoView mVideoView;
ImageView likeicon;
TextView likecount;
ImageView playpause;
communication mCommunication;
public funnyVideoHolder(@NonNull View itemView,communication communication) {
super(itemView);
mVideoView = (VideoView)itemView.findViewById(R.id.videoView);
likeicon = (ImageView)itemView.findViewById(R.id.likeicon);
likecount = (TextView)itemView.findViewById(R.id.likecount);
playpause = (ImageView)itemView.findViewById(R.id.playpause);
mCommunication = communication;
}
@Override
public void onClick(View v) {
mCommunication.respond(v);
}
//片段代码
公共课有趣的片段{
FirebaseDatabase=FirebaseDatabase.getInstance();
DatabaseReference myRef=database.getReference(“funnymomments”);
阵列列表数据;
有趣的适配器;
视频视图;
查看pos;
私人回收视图mRecyclerView;
公共搞笑时刻(){
//必需的空公共构造函数
}
@凌驾
创建视图上的公共视图(布局、充气机、视图组容器、,
Bundle savedInstanceState){
视图=充气机。充气(R.layout.fragment\u moments,container,false);
mRecyclerView=(RecyclerView)view.findviewbyd(R.id.recylerview);
mVideoView=(VideoView)view.findviewbyd(R.id.VideoView);
数据=新的ArrayList();
myRef.addValueEventListener(新的ValueEventListener(){
@凌驾
public void onDataChange(@NonNull DataSnapshot DataSnapshot){
对于(DataSnapshot videoSnapshot:DataSnapshot.getChildren()){
有趣的图片行视频=新的有趣图片行(videoSnapshot.child(“like”).getValue().toString(),videoSnapshot.child(“url”).getValue().toString());
添加数据(视频);
}
适配器=新的有趣的组件适配器(getActivity(),数据,mCommunication);
mRecyclerView.setAdapter(适配器);
setLayoutManager(新的LinearLayoutManager(getActivity());
}
@凌驾
已取消的公共void(@NonNull DatabaseError DatabaseError){
}
});
//为该碎片膨胀布局
返回视图;
}
@凌驾
公共无效暂停(){
adapter.mmediplayer.pause();
super.onPause();
}
//适配器代码
公共类有趣的\u moments\u适配器扩展了RecyclerView.adapter{
私人充气机;
List data=Collections.emptyList();
通讯员;
语境;
公用设备适配器(上下文、列表数据、通信通信器){
充气器=从(上下文)开始充气;
这个数据=数据;
this.mContext=上下文;
mCommunicator=通信器;
}
@非空
@凌驾
public funnyVideoHolder onCreateViewHolder(@NonNull ViewGroup ViewGroup,int i){
视图=充气机。充气(右布局。有趣的图片行,视图组,错误);
funnyVideoHolder funnyHolder=新的funnyVideoHolder(视图,MComunicator);
返回风琴座;
}
@凌驾
BindViewHolder上的公共无效(@NonNull final funnyVideoHolder viewHolder,int i){
有趣的\u moments\u row current=data.get(i);
VideoView f1=viewHolder.mVideoView;
viewHolder.mVideoView.setVideoURI(Uri.parse(current.getUrl());
viewHolder.likecount.setText(current.getLike());
viewHolder.mvideView.setOnPreparedListener(新的MediaPlayer.OnPreparedListener(){
@凌驾
已准备好公开作废(最终MediaPlayer mp){
FragmentManager=((AppCompatActivity)mContext.getSupportFragmentManager();
片段f=manager.findFragmentByTag(“android:switcher:+R.id.viewPager+”:“+2”);
MME层=mp;
viewHolder.playpause.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
if(mp.isPlaying()){
mp.pause();
}
否则{
mp.start();
}
}
});
}
});
viewHolder.playpause.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图v){
if(viewHolder.mVideoView.isPlaying()){
viewHolder.mvideView.requestFocus();
viewHolder.mVideoView.pause();
}
否则{
viewHolder.mvideView.requestFocus();
viewHolder.mVideoView.start();
}
}
});
}
@凌驾
public int getItemCount(){
返回data.size();
}
公共类funnyVideoHolder扩展了RecyclerView.ViewHolder实现了View.OnClickListener{
视频视图;
ImageView-likeicon;
TextView-likecount;
图像视图播放暂停;
沟通;
公共funnyVideoHolder(@NonNull View itemView,通信){
超级(项目视图);
mVideoView=(VideoView)itemView.findviewbyd(R.id.VideoView);
likeicon=(ImageView)itemView.findViewById(R.id.likeicon);
likecount=(TextView)itemView.findViewById(R.id.likecount);
playpause=(ImageView)itemView.findViewById(R.id.playpause);
M沟通=沟通;
}
@凌驾
公共void onClick(视图v){
mCommunication.respond(v);
}
}
}
我想在切换片段时停止播放。当您从一个片段分割到另一个片段时,会调用上一个片段的
onPause()
(给您暂停视频的机会),并调用新片段的onResume()
函数。如果尚未创建新片段,onStart
,onCreate()在调用onResume()
之前调用etc方法
你能做的是,当一个片段失去焦点时,即所谓的onPause()
,暂停你的视频,当一个片段进入焦点时,如果它已经被创建,你可以恢复它
片段生命周期()
我知道,但是如何从fragment onPause方法暂停视频,因为所有视频视图都在recycler视图中,如何从fragment活动访问该视图,这可能是一个愚蠢的任务