From 8545bf6b71d4b524169edc34ab07adbdf018c554 Mon Sep 17 00:00:00 2001
From: FongMi <b8892778@gmail.com>
Date: Thu, 2 Nov 2023 22:11:31 +0800
Subject: [PATCH] [leanback] support launcher

---
 app/src/leanback/AndroidManifest.xml          | 21 +++++
 .../java/com/fongmi/android/tv/Product.java   |  2 +-
 .../java/com/fongmi/android/tv/bean/Info.java | 48 ++++++++++
 .../tv/ui/activity/LauncherActivity.java      | 65 ++++++++++++++
 .../android/tv/ui/adapter/AppAdapter.java     | 88 +++++++++++++++++++
 .../leanback/res/layout/activity_launcher.xml | 17 ++++
 app/src/leanback/res/layout/adapter_app.xml   | 38 ++++++++
 7 files changed, 278 insertions(+), 1 deletion(-)
 create mode 100644 app/src/leanback/java/com/fongmi/android/tv/bean/Info.java
 create mode 100644 app/src/leanback/java/com/fongmi/android/tv/ui/activity/LauncherActivity.java
 create mode 100644 app/src/leanback/java/com/fongmi/android/tv/ui/adapter/AppAdapter.java
 create mode 100644 app/src/leanback/res/layout/activity_launcher.xml
 create mode 100644 app/src/leanback/res/layout/adapter_app.xml

diff --git a/app/src/leanback/AndroidManifest.xml b/app/src/leanback/AndroidManifest.xml
index 5625c82e6..61650fe9c 100644
--- a/app/src/leanback/AndroidManifest.xml
+++ b/app/src/leanback/AndroidManifest.xml
@@ -17,6 +17,14 @@
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
+
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.MAIN" />
+            <category android:name="android.intent.category.HOME" />
+        </intent>
+    </queries>
 
     <application android:banner="@drawable/ic_banner">
 
@@ -28,6 +36,19 @@
             android:name="design_height_in_dp"
             android:value="540" />
 
+        <activity
+            android:name=".ui.activity.LauncherActivity"
+            android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
+            android:exported="true"
+            android:launchMode="singleTask"
+            android:screenOrientation="sensorLandscape">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.HOME" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+
         <activity
             android:name=".ui.activity.HomeActivity"
             android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation"
diff --git a/app/src/leanback/java/com/fongmi/android/tv/Product.java b/app/src/leanback/java/com/fongmi/android/tv/Product.java
index 180e10d78..315b6d1e4 100644
--- a/app/src/leanback/java/com/fongmi/android/tv/Product.java
+++ b/app/src/leanback/java/com/fongmi/android/tv/Product.java
@@ -24,7 +24,7 @@ public class Product {
         return getSpec(space, column, style);
     }
 
-    private static int[] getSpec(int space, int column, Style style) {
+    public static int[] getSpec(int space, int column, Style style) {
         int base = ResUtil.getScreenWidth() - space;
         int width = base / column;
         int height = (int) (width / style.getRatio());
diff --git a/app/src/leanback/java/com/fongmi/android/tv/bean/Info.java b/app/src/leanback/java/com/fongmi/android/tv/bean/Info.java
new file mode 100644
index 000000000..2f10a1aa6
--- /dev/null
+++ b/app/src/leanback/java/com/fongmi/android/tv/bean/Info.java
@@ -0,0 +1,48 @@
+package com.fongmi.android.tv.bean;
+
+import android.content.pm.ApplicationInfo;
+import android.graphics.drawable.Drawable;
+
+import androidx.annotation.Nullable;
+
+import com.fongmi.android.tv.App;
+
+public class Info {
+
+    private final Drawable icon;
+    private final String name;
+    private final String pack;
+
+    public static Info get(ApplicationInfo info) {
+        Drawable icon = info.loadIcon(App.get().getPackageManager());
+        String name = info.loadLabel(App.get().getPackageManager()).toString();
+        String pack = info.packageName;
+        return new Info(name, pack, icon);
+    }
+
+    public Info(String name, String pack, Drawable icon) {
+        this.name = name;
+        this.pack = pack;
+        this.icon = icon;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getPack() {
+        return pack;
+    }
+
+    public Drawable getIcon() {
+        return icon;
+    }
+
+    @Override
+    public boolean equals(@Nullable Object obj) {
+        if (this == obj) return true;
+        if (!(obj instanceof Info)) return false;
+        Info it = (Info) obj;
+        return getPack().equals(it.getPack());
+    }
+}
diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/LauncherActivity.java b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/LauncherActivity.java
new file mode 100644
index 000000000..6bb4cb558
--- /dev/null
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/LauncherActivity.java
@@ -0,0 +1,65 @@
+package com.fongmi.android.tv.ui.activity;
+
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.net.Uri;
+
+import androidx.viewbinding.ViewBinding;
+
+import com.android.cast.dlna.dmr.DLNARendererService;
+import com.fongmi.android.tv.R;
+import com.fongmi.android.tv.bean.Info;
+import com.fongmi.android.tv.databinding.ActivityLauncherBinding;
+import com.fongmi.android.tv.ui.adapter.AppAdapter;
+import com.fongmi.android.tv.ui.base.BaseActivity;
+import com.fongmi.android.tv.ui.custom.SpaceItemDecoration;
+
+public class LauncherActivity extends BaseActivity implements AppAdapter.OnClickListener {
+
+    private ActivityLauncherBinding mBinding;
+    private AppAdapter mAdapter;
+
+    @Override
+    protected ViewBinding getBinding() {
+        return mBinding = ActivityLauncherBinding.inflate(getLayoutInflater());
+    }
+
+    @Override
+    protected void initView() {
+        DLNARendererService.Companion.startService(this, R.drawable.ic_logo);
+        setRecyclerView();
+        getApps();
+    }
+
+    private void setRecyclerView() {
+        mBinding.recycler.setHasFixedSize(true);
+        mBinding.recycler.setItemAnimator(null);
+        mBinding.recycler.setAdapter(mAdapter = new AppAdapter(this));
+        mBinding.recycler.addItemDecoration(new SpaceItemDecoration(5, 16));
+    }
+
+    private void getApps() {
+        for (ApplicationInfo info : getPackageManager().getInstalledApplications(0)) {
+            if ((info.flags & ApplicationInfo.FLAG_SYSTEM) != 0) continue;
+            mAdapter.add(Info.get(info));
+        }
+    }
+
+    @Override
+    public void onItemClick(Info item) {
+        try {
+            startActivity(getPackageManager().getLaunchIntentForPackage(item.getPack()));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public boolean onLongClick(Info item) {
+        if (item.getPack().equals(getPackageName())) return false;
+        Intent intent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE);
+        intent.setData(Uri.parse("package:" + item.getPack()));
+        startActivity(intent);
+        return true;
+    }
+}
diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/adapter/AppAdapter.java b/app/src/leanback/java/com/fongmi/android/tv/ui/adapter/AppAdapter.java
new file mode 100644
index 000000000..642da588d
--- /dev/null
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/adapter/AppAdapter.java
@@ -0,0 +1,88 @@
+package com.fongmi.android.tv.ui.adapter;
+
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.fongmi.android.tv.App;
+import com.fongmi.android.tv.Product;
+import com.fongmi.android.tv.bean.Info;
+import com.fongmi.android.tv.bean.Style;
+import com.fongmi.android.tv.databinding.AdapterAppBinding;
+import com.fongmi.android.tv.utils.ResUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class AppAdapter extends RecyclerView.Adapter<AppAdapter.ViewHolder> {
+
+    private final OnClickListener mListener;
+    private final List<Info> mItems;
+    private int[] size;
+
+    public AppAdapter(OnClickListener listener) {
+        this.mItems = new ArrayList<>();
+        this.mListener = listener;
+        setSize();
+    }
+
+    public interface OnClickListener {
+
+        void onItemClick(Info item);
+
+        boolean onLongClick(Info item);
+    }
+
+    private void setSize() {
+        int column = 5;
+        int space = ResUtil.dp2px(48) + ResUtil.dp2px(16 * (column - 1));
+        this.size = Product.getSpec(space, column, Style.rect());
+    }
+
+    public void add(Info item) {
+        if (item.getPack().equals(App.get().getPackageName())) {
+            mItems.add(0, item);
+            notifyItemInserted(0);
+        } else {
+            mItems.add(item);
+            notifyItemInserted(mItems.size() - 1);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return mItems.size();
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return new ViewHolder(AdapterAppBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false)).size(size);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        Info item = mItems.get(position);
+        holder.binding.name.setText(item.getName());
+        holder.binding.icon.setImageDrawable(item.getIcon());
+        holder.binding.getRoot().setOnClickListener(v -> mListener.onItemClick(item));
+        holder.binding.getRoot().setOnLongClickListener(v -> mListener.onLongClick(item));
+    }
+
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+
+        private final AdapterAppBinding binding;
+
+        public ViewHolder(@NonNull AdapterAppBinding binding) {
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+
+        public ViewHolder size(int[] size) {
+            binding.getRoot().getLayoutParams().width = size[0];
+            return this;
+        }
+    }
+}
diff --git a/app/src/leanback/res/layout/activity_launcher.xml b/app/src/leanback/res/layout/activity_launcher.xml
new file mode 100644
index 000000000..65fe69515
--- /dev/null
+++ b/app/src/leanback/res/layout/activity_launcher.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:clipChildren="false"
+        android:clipToPadding="false"
+        android:padding="24dp"
+        app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
+        app:spanCount="5" />
+
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/leanback/res/layout/adapter_app.xml b/app/src/leanback/res/layout/adapter_app.xml
new file mode 100644
index 000000000..36bb3e700
--- /dev/null
+++ b/app/src/leanback/res/layout/adapter_app.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_centerInParent="true"
+    android:background="@drawable/selector_item"
+    android:focusable="true"
+    android:focusableInTouchMode="true"
+    android:gravity="center"
+    android:orientation="vertical"
+    android:paddingStart="16dp"
+    android:paddingTop="16dp"
+    android:paddingEnd="16dp"
+    android:paddingBottom="8dp">
+
+    <ImageView
+        android:id="@+id/icon"
+        android:layout_width="64dp"
+        android:layout_height="64dp"
+        tools:src="@mipmap/ic_launcher" />
+
+    <TextView
+        android:id="@+id/name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:shadowColor="@color/black"
+        android:shadowDx="2"
+        android:shadowDy="2"
+        android:shadowRadius="2"
+        android:singleLine="true"
+        android:ellipsize="marquee"
+        android:textColor="@color/white"
+        android:textSize="18sp"
+        tools:text="@string/app_name" />
+
+</LinearLayout>
\ No newline at end of file