如何使用 intent.putextra 设置视频视图资源

Question

我的原始文件夹中有一些mp4视频，现在我想使用intent.put extra from activity A到活动B，当用户单击某个项目时，将这些视频传递给我的videoview。

这是我的适配器类：

public class absadapter extends RecyclerView.Adapter<absadapter.exViewHolder> {
List<abs.Ex> exList;
Context context;
String ex1 = "android.resource://" + context.getPackageName() + "/" + R.raw.ex1;

absadapter(List exList,Context ctx) {
this.exList= exList;
context=ctx;
}
public static class exViewHolder extends RecyclerView.ViewHolder{
CardView cardView;
TextView exname;
ImageView exlogo;

exViewHolder(View itemView){
super(itemView);
cardView= itemView.findViewById(R.id.cardView);
exname= itemView.findViewById(R.id.ex_name);
exlogo=itemView.findViewById(R.id.exlogo);

}

}
@Override
public absadapter.exViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
View viewthigh= LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_abslayout,parent,false);
absadapter.exViewHolder evh=new absadapter.exViewHolder(viewthigh);
return evh;

}

@Override
public void onBindViewHolder(final absadapter.exViewHolder holder, final int position){
holder.exname.setText(exList.get(position).name);
holder.exlogo.setImageResource(exList.get(position).logoId);
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (position == 0 ){
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.crunches);
context.startActivity(i1);

}
if (position == 1) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.raw.ex1);
i1.putExtra("text",R.string.declinecrunch);
context.startActivity(i1);

}
if (position == 2) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.dumsidebend);
context.startActivity(i1);
}
if (position == 3) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.hanglegraise);
context.startActivity(i1);
}
if (position == 4) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.inclinelegraisegi);
i1.putExtra("text",R.string.inclineleg);
context.startActivity(i1);
}
if (position == 5) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.legraises);
i1.putExtra("text",R.string.legraise);
context.startActivity(i1);
}
if (position == 6) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.flatbenchlyingleg);
context.startActivity(i1);
}
if (position == 7) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.jackknife);
context.startActivity(i1);
}
if (position == 8) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.jackknifegif);
i1.putExtra("text",R.string.jackknife);
context.startActivity(i1);
}
if (position == 9) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.twisthip);
i1.putExtra("text",R.string.twisthip);
context.startActivity(i1);
}
if (position == 10) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.weightcrunch);
context.startActivity(i1);
}
if (position == 11) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.plank);
context.startActivity(i1);
}
if (position == 12) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.sideplank);
context.startActivity(i1);
}
if (position == 13) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.superman);
context.startActivity(i1);
}
if (position == 14) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.twistcrunch);
context.startActivity(i1);
}

}
});

}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView){
super.onAttachedToRecyclerView(recyclerView);
}
@Override
public int getItemCount() {
return  exList.size();
}

我想在项目单击视频源的绑定视图内做所有代码：

这是我的主要课程：

public class abdetails extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_abdetails);
VideoView videoView;
videoView=findViewById(R.id.vdvw);
Intent i1=getIntent();
TextView tv;

tv = findViewById(R.id.exdesc);
tv.setMovementMethod(new ScrollingMovementMethod());
tv.setText(i1.getIntExtra("text",0));
}

Answer 1

您不应该传递整个视频。只需传递视频ID(或视频名称等(，然后在活动B中，只需再次访问raw文件夹即可获取目标视频

在适配器中，传递位置：

@Override
public void onBindViewHolder(final Absadapter.ExViewHolder holder, final int position){
...
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i1=new Intent(context, Abdetails.class);
i1.putExtra("POSITION", position);
context.startActivity(i1);
}
}
...
}

然后在您的 AbDetailActivity 中：

public class AbDetailActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_abdetails);
if (getIntent() != null && getIntent().getExtras() != null) {
Bundle bundle = getIntent().getExtras();
int position = bundle.getInt("POSITION", 0);
switch (position) {
case 0:
// Load video 0
break;
case 1:
// Load video 1
break:
...
}
}
}

Answer 2

我已经编辑了你的代码。希望它能解决你的问题。单击第一项时，下面的代码将播放您的视频文件。我的意思是当位置 == 0;

public class absadapter extends RecyclerView.Adapter<absadapter.exViewHolder> {
List<abs.Ex> exList;
Context context;
String ex1 = "android.resource://" + context.getPackageName() + "/" + R.raw.ex1;
absadapter(List exList,Context ctx) {
this.exList= exList;
context=ctx;
}
public static class exViewHolder extends RecyclerView.ViewHolder{
CardView cardView;
TextView exname;
ImageView exlogo;
exViewHolder(View itemView){
super(itemView);
cardView= itemView.findViewById(R.id.cardView);
exname= itemView.findViewById(R.id.ex_name);
exlogo=itemView.findViewById(R.id.exlogo);
}
}
@Override
public absadapter.exViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
View viewthigh= LayoutInflater.from(parent.getContext()).inflate(R.layout.custom_abslayout,parent,false);
absadapter.exViewHolder evh=new absadapter.exViewHolder(viewthigh);
return evh;
}
@Override
public void onBindViewHolder(final absadapter.exViewHolder holder, final int position){
holder.exname.setText(exList.get(position).name);
holder.exlogo.setImageResource(exList.get(position).logoId);
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (position == 0 ){
Intent i1=new Intent(context, abdetails.class);
i1.putExtra("video", ex1);
context.startActivity(i1);
}
if (position == 1) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.raw.ex1);
i1.putExtra("text",R.string.declinecrunch);
context.startActivity(i1);
}
if (position == 2) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.dumsidebend);
context.startActivity(i1);
}
if (position == 3) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.hanglegraise);
context.startActivity(i1);
}
if (position == 4) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.inclinelegraisegi);
i1.putExtra("text",R.string.inclineleg);
context.startActivity(i1);
}
if (position == 5) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.legraises);
i1.putExtra("text",R.string.legraise);
context.startActivity(i1);
}
if (position == 6) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.flatbenchlyingleg);
context.startActivity(i1);
}
if (position == 7) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.jackknife);
context.startActivity(i1);
}
if (position == 8) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.jackknifegif);
i1.putExtra("text",R.string.jackknife);
context.startActivity(i1);
}
if (position == 9) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("img",R.drawable.twisthip);
i1.putExtra("text",R.string.twisthip);
context.startActivity(i1);
}
if (position == 10) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.weightcrunch);
context.startActivity(i1);
}
if (position == 11) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.plank);
context.startActivity(i1);
}
if (position == 12) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.sideplank);
context.startActivity(i1);
}
if (position == 13) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.superman);
context.startActivity(i1);
}
if (position == 14) {
Intent i1=new Intent(context,abdetails.class);
i1.putExtra("text",R.string.twistcrunch);
context.startActivity(i1);
}
}
});
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView){
super.onAttachedToRecyclerView(recyclerView);
}
@Override
public int getItemCount() {
return  exList.size();
}

这是您的视频播放器活动。

public class abdetails extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_abdetails);
VideoView videoView;
videoView=findViewById(R.id.vdvw);
Intent i1=getIntent();
TextView tv;
tv = findViewById(R.id.exdesc);
tv.setMovementMethod(new ScrollingMovementMethod());
tv.setText(i1.getIntExtra("text",0));
if(i1 != null){
String path = i1.getStringExtra("video", "");
videoView.setVideoURI(Uri.parse(path));
videoView.start();
videoView.setVisibility(View.VISIBLE);
}
}