HaiNaOSLenovo/app/src/main/java/com/hainaos/vc/adapter/HomeAppAdapter.java

package com.hainaos.vc.adapter;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.Drawable;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.fragment.app.FragmentActivity;
import androidx.recyclerview.widget.RecyclerView;

import com.hainaos.vc.R;
import com.hainaos.vc.activity.category.list.CategoryListActivity;
import com.hainaos.vc.activity.user.UserActivity;
import com.hainaos.vc.bean.HomeAppInfo;
import com.hainaos.vc.utils.ApkUtils;

import java.util.List;

import me.jessyan.autosize.AutoSizeCompat;

public class HomeAppAdapter extends RecyclerView.Adapter<HomeAppAdapter.Holder> {
    public static final String USER_CENTER = "user_center";
    public static final String DOWNLOAD_CENTER = "download_center";

    private FragmentActivity mContext;

    private List<HomeAppInfo> mHomeAppInfos;

    public void setHomeAppInfos(List<HomeAppInfo> homeAppInfos) {
        mHomeAppInfos = homeAppInfos;
        notifyDataSetChanged();
    }


    @NonNull
    @Override
    public Holder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        mContext = (FragmentActivity) parent.getContext();
        AutoSizeCompat.autoConvertDensityOfGlobal(mContext.getResources());
        Holder holder = new Holder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_app, parent, false));
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull Holder holder, int position) {
        AutoSizeCompat.autoConvertDensityOfGlobal(mContext.getResources());
        HomeAppInfo homeAppInfo = mHomeAppInfos.get(position);
        String name = homeAppInfo.getName();
        String dirName = homeAppInfo.getDirName();
        String packageName = homeAppInfo.getPackageName();
        String className = homeAppInfo.getClassName();
        if (!TextUtils.isEmpty(name)) {
            holder.tv_app_name.setText(name);
        }

        boolean dir = homeAppInfo.isDir();
        if (dir) {
            switch (packageName) {
                case USER_CENTER:
                    holder.iv_icon.setImageDrawable(mContext.getDrawable(R.drawable.icon_user_center));
                    break;
                case DOWNLOAD_CENTER:
                    holder.iv_icon.setImageDrawable(mContext.getDrawable(R.drawable.icon_download_manager));
                    break;
                default:
                    holder.iv_icon.setImageDrawable(mContext.getDrawable(R.drawable.icon_category));
                    break;
            }
        } else {
            holder.iv_icon.setImageDrawable(getIconByPackageNameAndClassName(mContext, packageName, className));
        }


        holder.root.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (dir) {
                    switch (packageName) {
                        case USER_CENTER:
                            mContext.startActivity(new Intent(mContext, UserActivity.class));
                            break;
                        case DOWNLOAD_CENTER:
                            mContext.startActivity(new Intent(mContext, CategoryListActivity.class));
                            break;
                        default:
//                            Intent intent = new Intent(mContext, LocalCategoryActivity.class);
//                            intent.putExtra("title", name);
//                            intent.putExtra("dir", dirName);
//                            mContext.startActivity(intent);
                            break;
                    }
                } else {
                    if (TextUtils.isEmpty(className)) {
                        ApkUtils.openPackage(mContext, packageName);
                    } else {
                        ApkUtils.openPackage(mContext, packageName, className);
                    }
                }
            }
        });
    }

    public Drawable getIconByPackageNameAndClassName(Context context, String packageName, String className) {
        PackageManager pm = context.getPackageManager();
        ComponentName cn = new ComponentName(packageName, className);
        try {
            ActivityInfo activityInfo = pm.getActivityInfo(cn, 0);
            return activityInfo.loadIcon(pm);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
            // 可以返回一个默认图标或者null
            ApplicationInfo applicationInfo = null;
            try {
                applicationInfo = pm.getApplicationInfo(packageName, 0);
            } catch (PackageManager.NameNotFoundException ex) {
                ex.printStackTrace();
            }
            if (applicationInfo != null) {
                return applicationInfo.loadLogo(pm);
            }
            return context.getDrawable(R.mipmap.ic_launcher);
        }
    }


    @Override
    public int getItemCount() {
        return mHomeAppInfos == null ? 0 : mHomeAppInfos.size();
    }

    public class Holder extends RecyclerView.ViewHolder {
        ConstraintLayout root;
        TextView tv_app_name;
        ImageView iv_icon;

        public Holder(@NonNull View itemView) {
            super(itemView);

            root = itemView.findViewById(R.id.root);
            tv_app_name = itemView.findViewById(R.id.tv_app_name);
            iv_icon = itemView.findViewById(R.id.iv_icon);
        }
    }
}