Refactoring. Migrate java to kotlin

Author: timscriptov

app/src/main/java/com/mcal/mcpelauncher/activities/BaseActivity.java

@@ -55,66 +55,64 @@ protected void onCreate(Bundle savedInstanceState) {
     }
 
     protected void setDefaultActionBar() {
-        ActionBar actionBar = getSupportActionBar();
+        final ActionBar actionBar = getSupportActionBar();
         if (actionBar != null) {
-            @SuppressLint("InflateParams") RelativeLayout actionBarCustomView = (RelativeLayout) LayoutInflater.from(this).inflate(R.layout.mcd_actionbar, null);
-            ActionBar.LayoutParams layoutParams = new ActionBar.LayoutParams(ActionBar.LayoutParams.MATCH_PARENT, ActionBar.LayoutParams.MATCH_PARENT);
+            final @SuppressLint("InflateParams") RelativeLayout actionBarCustomView = (RelativeLayout) LayoutInflater.from(this).inflate(R.layout.mcd_actionbar, null);
+            final ActionBar.LayoutParams layoutParams = new ActionBar.LayoutParams(ActionBar.LayoutParams.MATCH_PARENT, ActionBar.LayoutParams.MATCH_PARENT);
             layoutParams.gravity = Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL;
             actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
             actionBar.setDisplayShowHomeEnabled(false);
             actionBar.setDisplayShowCustomEnabled(true);
             actionBar.setDisplayShowTitleEnabled(false);
             actionBar.setCustomView(actionBarCustomView, layoutParams);
-            Toolbar parent = (Toolbar) actionBarCustomView.getParent();
+            final Toolbar parent = (Toolbar) actionBarCustomView.getParent();
             parent.setContentInsetsAbsolute(0, 0);
 
-            AppCompatTextView titleTV = actionBarCustomView.findViewById(R.id.mcd_actionbar_title);
+            final AppCompatTextView titleTV = actionBarCustomView.findViewById(R.id.mcd_actionbar_title);
             titleTV.setText(getTitle());
         }
     }
 
     @Override
     public void setTitle(int titleId) {
         super.setTitle(titleId);
-
         if (getSupportActionBar() != null) {
-            View actionBarCustomView = getSupportActionBar().getCustomView();
-            AppCompatTextView titleTV = actionBarCustomView.findViewById(R.id.mcd_actionbar_title);
+            final View actionBarCustomView = getSupportActionBar().getCustomView();
+            final AppCompatTextView titleTV = actionBarCustomView.findViewById(R.id.mcd_actionbar_title);
             titleTV.setText(titleId);
         }
     }
 
     @Override
     public void setTitle(CharSequence title) {
         super.setTitle(title);
-
         if (getSupportActionBar() != null) {
-            View actionBarCustomView = getSupportActionBar().getCustomView();
-            AppCompatTextView titleTV = actionBarCustomView.findViewById(R.id.mcd_actionbar_title);
+            final View actionBarCustomView = getSupportActionBar().getCustomView();
+            final AppCompatTextView titleTV = actionBarCustomView.findViewById(R.id.mcd_actionbar_title);
             titleTV.setText(title);
         }
     }
 
     protected void setActionBarViewRight(View view) {
         if (getSupportActionBar() != null) {
-            View actionBarCustomView = getSupportActionBar().getCustomView();
-            RelativeLayout layout = actionBarCustomView.findViewById(R.id.mcd_actionbar_ViewRight);
+            final View actionBarCustomView = getSupportActionBar().getCustomView();
+            final RelativeLayout layout = actionBarCustomView.findViewById(R.id.mcd_actionbar_ViewRight);
             layout.removeAllViews();
             layout.addView(view);
         }
     }
 
     protected void setActionBarViewLeft(View view) {
         if (getSupportActionBar() != null) {
-            View actionBarCustomView = getSupportActionBar().getCustomView();
-            RelativeLayout layout = actionBarCustomView.findViewById(R.id.mcd_actionbar_ViewLeft);
+            final View actionBarCustomView = getSupportActionBar().getCustomView();
+            final RelativeLayout layout = actionBarCustomView.findViewById(R.id.mcd_actionbar_ViewLeft);
             layout.removeAllViews();
             layout.addView(view);
         }
     }
 
     protected void setActionBarButtonCloseRight() {
-        View buttonClose = getLayoutInflater().inflate(R.layout.moddedpe_ui_button_close, null);
+        final View buttonClose = getLayoutInflater().inflate(R.layout.moddedpe_ui_button_close, null);
         buttonClose.findViewById(R.id.moddedpe_ui_button_item_image_button).setOnClickListener(p1 -> finish());
         setActionBarViewRight(buttonClose);
     }
@@ -123,7 +121,6 @@ protected void setActionBarButtonCloseRight() {
     @Override
     public void onWindowFocusChanged(boolean hasFocus) {
         super.onWindowFocusChanged(hasFocus);
-
         Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.mcd_bg);
         bitmap = BitmapRepeater.repeat(getWindowManager().getDefaultDisplay().getWidth(), getWindowManager().getDefaultDisplay().getHeight(), bitmap);
         getWindow().getDecorView().setBackground(new BitmapDrawable(bitmap));

app/src/main/java/com/mcal/mcpelauncher/activities/SplashesActivity.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2018-2021 Тимашков Иван
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.mcal.mcpelauncher.activities
+
+import android.annotation.SuppressLint
+import android.content.Intent
+import android.os.Build
+import android.os.Bundle
+import android.view.View
+import com.mcal.mcpelauncher.R
+import com.mcal.mcpelauncher.utils.DataPreloader
+import com.mcal.mcpelauncher.utils.PreloadingFinishedListener
+
+/**
+ * @author Тимашков Иван
+ * @author https://github.com/TimScriptov
+ */
+class SplashesActivity : BaseActivity(), PreloadingFinishedListener {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.moddedpe_splashes)
+        initInstance()
+    }
+
+    @SuppressLint("ObsoleteSdkInt")
+    override fun onWindowFocusChanged(hasFocus: Boolean) {
+        super.onWindowFocusChanged(hasFocus)
+        if (hasFocus && Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            val decorView = window.decorView
+            @Suppress("DEPRECATION")
+            decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                    or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                    or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                    or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+                    or View.SYSTEM_UI_FLAG_FULLSCREEN
+                    or View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY)
+        }
+    }
+
+    private fun initInstance() {
+        DataPreloader(this).preload(applicationContext)
+    }
+
+    override fun onPreloadingFinished() {
+        val intent = Intent(this@SplashesActivity, MainActivity::class.java)
+        startActivity(intent)
+        finish()
+    }
+}

app/src/main/java/com/mcal/mcpelauncher/activities/SplashesActivity.kt

@@ -31,6 +31,7 @@
 import androidx.preference.ListPreference;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.SwitchPreference;
 
 import com.google.android.material.snackbar.Snackbar;
 import com.mcal.mcpelauncher.R;
@@ -41,7 +42,6 @@
 import com.mcal.mcpelauncher.ui.AboutActivity;
 import com.mcal.mcpelauncher.ui.DirPickerActivity;
 import com.mcal.mcpelauncher.utils.I18n;
-import com.mcal.mcpelauncher.view.SwitchPreference;
 
 import org.jetbrains.annotations.NotNull;
 
@@ -81,7 +81,6 @@ public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         });
 
         SwitchPreference mSafeModePreference = findPreference("safe_mode");
-        mSafeModePreference.setWidgetLayoutResource(R.layout.switch_preference);
         mSafeModePreference.setOnPreferenceChangeListener((p1, p2) -> {
             Preferences.setSafeMode((boolean) p2);
             return true;

app/src/main/java/com/mcal/mcpelauncher/fragments/MainSettingsFragment.java

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2018-2021 Тимашков Иван
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.mcal.mcpelauncher.utils
+
+import android.content.Context
+import com.mcal.mcpelauncher.ModdedPEApplication
+import com.mcal.pesdk.PESdk
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+
+/**
+ * @author Тимашков Иван
+ * @author https://github.com/TimScriptov
+ */
+class DataPreloader(private val mListener: PreloadingFinishedListener) {
+    private var mIsSleepingFinished = false
+    private var mIsPreloadingFinished = false
+    fun preload(context_a: Context) {
+        CoroutineScope(Dispatchers.IO).launch {
+            ModdedPEApplication.mPESdk = PESdk(context_a)
+            ModdedPEApplication.mPESdk.init()
+            mIsPreloadingFinished = true
+            checkFinish()
+        }
+        CoroutineScope(Dispatchers.IO).launch {
+            try {
+                delay(5000L)
+            } catch (e: InterruptedException) {
+                e.printStackTrace()
+            }
+            mIsSleepingFinished = true
+            checkFinish()
+        }
+    }
+
+    private fun checkFinish() {
+        if (mIsPreloadingFinished && mIsSleepingFinished) {
+            mListener.onPreloadingFinished()
+        }
+    }
+}