channel reversal

app/src/main/java/com/lizongying/mytv/MainActivity.kt

@@ -1,11 +1,11 @@
 package com.lizongying.mytv
 
-import android.app.AlertDialog
+import android.content.Context
+import android.content.SharedPreferences
 import android.content.pm.PackageInfo
 import android.content.pm.PackageManager
 import android.content.pm.Signature
 import android.content.pm.SigningInfo
-import android.graphics.Color
 import android.os.Build
 import android.os.Bundle
 import android.os.Handler
@@ -16,11 +16,7 @@ import android.view.KeyEvent
 import android.view.MotionEvent
 import android.view.View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
 import android.view.WindowManager
-import android.widget.ImageView
-import android.widget.LinearLayout
-import android.widget.TextView
 import android.widget.Toast
-import androidx.core.content.ContextCompat
 import androidx.fragment.app.FragmentActivity
 import com.lizongying.mytv.models.TVViewModel
 import java.security.MessageDigest
@@ -39,6 +35,9 @@ class MainActivity : FragmentActivity() {
     private val handler = Handler()
     private val delay: Long = 4000
 
+    private lateinit var sharedPref: SharedPreferences
+    private var channelReversal = false
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
@@ -57,6 +56,9 @@ class MainActivity : FragmentActivity() {
             mainFragment.view?.requestFocus()
         }
         gestureDetector = GestureDetector(this, GestureListener())
+
+        sharedPref = getPreferences(Context.MODE_PRIVATE)
+        channelReversal = sharedPref.getBoolean(CHANNEL_REVERSAL, false)
     }
 
     fun showInfoFragment(tvViewModel: TVViewModel) {
@@ -170,59 +172,100 @@ class MainActivity : FragmentActivity() {
         }
     }
 
+    fun saveChannelReversal(channelReversal: Boolean) {
+        with(sharedPref.edit()) {
+            putBoolean(CHANNEL_REVERSAL, channelReversal)
+            apply()
+        }
+        this.channelReversal = channelReversal
+    }
+
     private fun showHelp() {
+        if (!mainFragment.isHidden) {
+            return
+        }
+
         val versionName = getPackageInfo().versionName
+        val dialogFragment = MyDialogFragment(versionName, channelReversal)
+        dialogFragment.show(supportFragmentManager, "settings_dialog")
+    }
 
-        val textView = TextView(this)
+    private fun channelUp() {
-        textView.text =
+        if (mainFragment.isHidden) {
-            "当前版本: $versionName\n获取最新: https://github.com/lizongying/my-tv/releases/"
+            if (channelReversal) {
-        textView.setBackgroundColor(0xFF263238.toInt())
+                next()
-        textView.setPadding(20, 50, 20, 20)
+                return
+            }
+            prev()
+        } else {
+//                    if (mainFragment.selectedPosition == 0) {
+//                        mainFragment.setSelectedPosition(
+//                            mainFragment.tvListViewModel.maxNum.size - 1,
+//                            false
+//                        )
+//                    }
+        }
+    }
 
-        val imageView = ImageView(this)
+    private fun channelDown() {
-        val drawable = ContextCompat.getDrawable(this, R.drawable.appreciate)
+        if (mainFragment.isHidden) {
-        imageView.setImageDrawable(drawable)
+            if (channelReversal) {
-        imageView.setBackgroundColor(Color.WHITE)
+                prev()
+                return
+            }
+            next()
+        } else {
+//                    if (mainFragment.selectedPosition == mainFragment.tvListViewModel.maxNum.size - 1) {
+////                        mainFragment.setSelectedPosition(0, false)
+//                        hideMainFragment()
+//                        return false
+//                    }
+        }
+    }
 
-        val linearLayout = LinearLayout(this)
+    private fun back() {
-        linearLayout.orientation = LinearLayout.VERTICAL
+        if (!mainFragmentIsHidden()) {
-        linearLayout.addView(textView)
+            hideMainFragment()
-        linearLayout.addView(imageView)
+            return
+        }
 
-        val layoutParams = LinearLayout.LayoutParams(
+        if (doubleBackToExitPressedOnce) {
-            LinearLayout.LayoutParams.MATCH_PARENT,
+            super.onBackPressed()
-            LinearLayout.LayoutParams.WRAP_CONTENT
+            return
-        )
+        }
-        imageView.layoutParams = layoutParams
-        textView.layoutParams = layoutParams
 
-        val builder: AlertDialog.Builder = AlertDialog.Builder(this)
+        doubleBackToExitPressedOnce = true
-        builder
+        Toast.makeText(this, "再按一次退出", Toast.LENGTH_SHORT).show()
-            .setView(linearLayout)
 
-        val dialog: AlertDialog = builder.create()
+        Handler(Looper.getMainLooper()).postDelayed({
-        dialog.show()
+            doubleBackToExitPressedOnce = false
+        }, 2000)
     }
 
     override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
         when (keyCode) {
+            KeyEvent.KEYCODE_ESCAPE -> {
+                back()
+                return true
+            }
+
             KeyEvent.KEYCODE_BACK -> {
-                if (!mainFragmentIsHidden()) {
+                back()
-                    hideMainFragment()
+                return true
-                    return true
+            }
-                }
 
-                if (doubleBackToExitPressedOnce) {
+            KeyEvent.KEYCODE_BOOKMARK -> {
-                    super.onBackPressed()
+                showHelp()
-                    return true
+                return true
-                }
+            }
 
-                this.doubleBackToExitPressedOnce = true
+            KeyEvent.KEYCODE_UNKNOWN -> {
-                Toast.makeText(this, "再按一次退出", Toast.LENGTH_SHORT).show()
+                showHelp()
+                return true
+            }
 
-                Handler(Looper.getMainLooper()).postDelayed({
+            KeyEvent.KEYCODE_HELP -> {
-                    doubleBackToExitPressedOnce = false
+                showHelp()
-                }, 2000)
                 return true
             }
 
@@ -245,28 +288,19 @@ class MainActivity : FragmentActivity() {
             }
 
             KeyEvent.KEYCODE_DPAD_UP -> {
-                if (mainFragment.isHidden) {
+                channelUp()
-                    prev()
+            }
-                } else {
+
-//                    if (mainFragment.selectedPosition == 0) {
+            KeyEvent.KEYCODE_CHANNEL_UP -> {
-//                        mainFragment.setSelectedPosition(
+                channelUp()
-//                            mainFragment.tvListViewModel.maxNum.size - 1,
-//                            false
-//                        )
-//                    }
-                }
             }
 
             KeyEvent.KEYCODE_DPAD_DOWN -> {
-                if (mainFragment.isHidden) {
+                channelDown()
-                    next()
+            }
-                } else {
+
-//                    if (mainFragment.selectedPosition == mainFragment.tvListViewModel.maxNum.size - 1) {
+            KeyEvent.KEYCODE_CHANNEL_DOWN -> {
-////                        mainFragment.setSelectedPosition(0, false)
+                channelDown()
-//                        hideMainFragment()
-//                        return false
-//                    }
-                }
             }
 
             KeyEvent.KEYCODE_DPAD_LEFT -> {
@@ -351,5 +385,6 @@ class MainActivity : FragmentActivity() {
 
     companion object {
         private const val TAG = "MainActivity"
+        private const val CHANNEL_REVERSAL = "channel_reversal"
     }
 }

app/src/main/java/com/lizongying/mytv/MyDialogFragment.kt

@@ -0,0 +1,44 @@
+package com.lizongying.mytv
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.DialogFragment
+import com.lizongying.mytv.databinding.DialogBinding
+
+
+class MyDialogFragment(private val versionName: String, private val channelReversal: Boolean) :
+    DialogFragment() {
+
+    private var _binding: DialogBinding? = null
+    private val binding get() = _binding!!
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        _binding = DialogBinding.inflate(inflater, container, false)
+        _binding?.version?.text =
+            "当前版本: $versionName\n获取最新: https://github.com/lizongying/my-tv/releases/"
+
+        val switchView = _binding?.switchView
+        switchView?.isChecked = channelReversal
+        switchView?.setOnCheckedChangeListener { _, isChecked ->
+            (activity as MainActivity).saveChannelReversal(isChecked)
+        }
+
+        return binding.root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
+    companion object {
+        const val TAG = "MyDialogFragment"
+    }
+}
+

app/src/main/res/layout/dialog.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/dialog"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    >
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content">
+        <LinearLayout
+            android:layout_width="300dp"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            android:paddingTop="20dp"
+            android:paddingLeft="7dp"
+            android:paddingRight="7dp"
+            android:background="#FF263238"
+            >
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/app_name"
+                android:textSize="16sp" />
+            <TextView
+                android:id="@+id/version"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="10dp"
+                android:layout_marginBottom="10dp"
+                android:text="当前版本: $versionName\n获取最新: https://github.com/lizongying/my-tv/releases/"
+                ></TextView>
+            <Switch
+                android:id="@+id/switch_view"
+                android:text="@string/title_channel_reversal"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" />
+        </LinearLayout>
+        <ImageView
+            android:layout_width="300dp"
+            android:layout_height="wrap_content"
+            android:src="@drawable/appreciate"
+            android:background="@color/white" />
+    </LinearLayout>
+</FrameLayout>

app/src/main/res/layout/info.xml

@@ -12,7 +12,6 @@
         android:layout_width="100dp"
         android:layout_height="wrap_content"
         android:layout_marginTop="8dp"
-        android:contentDescription="@string/logo"
         android:padding="10dp" />
 
     <LinearLayout

app/src/main/res/values/strings.xml

@@ -1,4 +1,4 @@
 <resources>
     <string name="app_name">我的电视</string>
-    <string name="logo">logo</string>
+    <string name="title_channel_reversal">频道反转</string>
 </resources>

app/src/main/res/values/styles.xml

@@ -1,6 +1,5 @@
 <resources>
 
-
     <style name="CustomImageCardViewStyle" parent="Widget.Leanback.ImageCardViewStyle">
         <item name="lbImageCardViewType">Title|Content</item>
     </style>