从 RecyclerView 适配器启动 Chrome 自定义选项卡

Question

我打算像这样从 RecyclerView 启动一个 Chrome Custom 选项卡 -

public CustomAdapter(Context context, List<Artifact> ListOfArtifacts) {
    this.context = context;
    this.ListOfArtifacts = ListOfArtifacts;
}

@Override
public void onBindViewHolder(ViewHolder holder, final int position) {
    holder.artifactAuthor.setText(ListOfArtifacts.get(position).getAuthor());
    holder.artifactTitle.setText(ListOfArtifacts.get(position).getTitle());
    holder.seeders.setText(String.valueOf(ListOfArtifacts.get(position).getSeeders()));
    holder.leechers.setText(String.valueOf(ListOfArtifacts.get(position).getLeechers()));
    holder.addedOn.setText(df.format(ListOfArtifacts.get(position).getAdded_on()));
    holder.artifactTitle.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            try {
                /*Intent launchArtifactAuthor = new Intent(Intent.parseUri(ListOfArtifacts.get(position).getURL(), Intent.URI_INTENT_SCHEME));
                context.startActivity(launchArtifactAuthor);*/
                CustomTabsIntent.Builder intentBuilder = new CustomTabsIntent.Builder();

                // Begin customizing
                // set toolbar colors
                intentBuilder.setToolbarColor(ContextCompat.getColor(context, R.color.colorPrimary));
                intentBuilder.setSecondaryToolbarColor(ContextCompat.getColor(context, R.color.colorPrimaryDark));

                // set start and exit animations
                intentBuilder.setStartAnimations(context, android.R.anim.slide_out_right, android.R.anim.fade_in);
                intentBuilder.setExitAnimations(context, android.R.anim.slide_in_left,
                        android.R.anim.slide_out_right);

                // build custom tabs intent
                CustomTabsIntent customTabsIntent = intentBuilder.build();
                customTabsIntent.launchUrl((Activity) context, Uri.parse(ListOfArtifacts.get(position).getURL()));


            }catch (Exception e) {
                e.printStackTrace();
            }
        }
    });
}

由于 customTabsIntent.launchUrl 的方法签名要求第一个参数是 Activity，我将上下文转换为 Activity 因此

java.lang.ClassCastException: android.app.Application cannot be cast to android.app.Activity

上线customTabsIntent.launchUrl((Activity) context, Uri.parse(ListOfArtifacts.get(position).getURL()));

我该如何解决这个问题？

Answer 1

如果在回收视图中总是需要 activity，我认为获取 Context 并将其解析为 Activity 是没有意义的；而只是从构造函数中获取 Activity。

所以我建议将您的构造函数更改为

public CustomAdapter(Activity activity, List<Artifact> ListOfArtifacts) {
    this.activity= activity;
    this.ListOfArtifacts = ListOfArtifacts;
}

然后只需使用 activity 启动 Chrome custom tabs。

customTabsIntent.launchUrl(activity, Uri.parse(ListOfArtifacts.get(position).getURL()));

如果您想知道您的代码有什么问题，我认为您传递的是应用程序上下文，而不是 Activity 上下文。

从 RecyclerView 适配器启动 Chrome 自定义选项卡

Launching A Chrome Custom Tab from a RecyclerView Adapter

java

android

android-recyclerview

chrome-custom-tabs