Setting up wallpaper from url

6 files changed, 81 insertions, 2 deletions

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 903a184..580bd70 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -5,6 +5,7 @@
     <uses-permission android:name="android.permission.SET_WALLPAPER" />
     <uses-permission android:name="android.permission.EXPAND_STATUS_BAR" />
     <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" />
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <!--For device lock feature-->
     <uses-permission android:name="android.permission.CALL_PHONE" />
diff --git a/app/src/main/java/app/olauncher/MainActivity.kt b/app/src/main/java/app/olauncher/MainActivity.kt
index 51008b8..29325ba 100644
--- a/app/src/main/java/app/olauncher/MainActivity.kt
+++ b/app/src/main/java/app/olauncher/MainActivity.kt
@@ -62,6 +62,9 @@ class MainActivity : AppCompatActivity() {
         viewModel.launcherResetFailed.observe(this, Observer {
             openLauncherChooser(it)
         })
+        viewModel.refreshWallpaper.observe(this, Observer {
+            setWallpaper()
+        })
     }
 
     private fun setWallpaper() {
diff --git a/app/src/main/java/app/olauncher/helper/MainViewModel.kt b/app/src/main/java/app/olauncher/helper/MainViewModel.kt
index a2de944..7a14c96 100644
--- a/app/src/main/java/app/olauncher/helper/MainViewModel.kt
+++ b/app/src/main/java/app/olauncher/helper/MainViewModel.kt
@@ -1,6 +1,7 @@
 package app.olauncher.helper
 
 import android.app.Application
+import android.app.WallpaperManager
 import android.content.Context
 import android.content.Intent
 import androidx.appcompat.app.AppCompatDelegate
@@ -23,6 +24,7 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
     val isOlauncherDefault = MutableLiveData<Boolean>()
     val launcherResetFailed = MutableLiveData<Boolean>()
     val isDarkModeOn = MutableLiveData<Boolean>()
+    val refreshWallpaper = MutableLiveData<Any>()
 
     fun selectedApp(appModel: AppModel, flag: Int) {
         when (flag) {
@@ -110,6 +112,23 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
         else AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
         isDarkModeOn.value = prefs.darkModeOn
     }
+
+    fun setWallpaper(width: Int, height: Int, url: String) {
+        viewModelScope.launch {
+            val originalImageBitmap = getBitmapFromURL(url)
+            val wallpaperManager = WallpaperManager.getInstance(appContext)
+            val scaledBitmap = getWallpaperBitmap(originalImageBitmap, width, height)
+
+            try {
+                wallpaperManager.setBitmap(scaledBitmap)
+                originalImageBitmap.recycle()
+                scaledBitmap.recycle()
+                refreshWallpaper.value = Unit
+            } catch (e: Exception) {
+
+            }
+        }
+    }
 }
 
 data class AppModelWithFlag(
diff --git a/app/src/main/java/app/olauncher/helper/Utils.kt b/app/src/main/java/app/olauncher/helper/Utils.kt
index b87a0b9..308707e 100644
--- a/app/src/main/java/app/olauncher/helper/Utils.kt
+++ b/app/src/main/java/app/olauncher/helper/Utils.kt
@@ -5,7 +5,7 @@ import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
-import android.graphics.Bitmap
+import android.graphics.*
 import android.net.Uri
 import android.provider.Settings
 import android.widget.Toast
@@ -14,6 +14,9 @@ import app.olauncher.R
 import app.olauncher.data.AppModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
+import java.io.InputStream
+import java.net.HttpURLConnection
+import java.net.URL
 import java.util.*
 
 fun showToastLong(context: Context, message: String) {
@@ -111,4 +114,41 @@ fun openAppInfo(context: Context, packageName: String) {
     intent.addCategory(Intent.CATEGORY_DEFAULT)
     intent.data = Uri.parse("package:$packageName")
     context.startActivity(intent)
-}
\ No newline at end of file
+}
+
+suspend fun getBitmapFromURL(src: String?): Bitmap {
+    return withContext(Dispatchers.IO) {
+        val url = URL(src)
+        val connection: HttpURLConnection = url
+            .openConnection() as HttpURLConnection
+        connection.doInput = true
+        connection.connect()
+        val input: InputStream = connection.inputStream
+        BitmapFactory.decodeStream(input)
+    }
+}
+
+suspend fun getWallpaperBitmap(originalImage: Bitmap, width: Int, height: Int): Bitmap {
+    return withContext(Dispatchers.IO) {
+        val background = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
+
+        val originalWidth: Float = originalImage.width.toFloat()
+        val originalHeight: Float = originalImage.height.toFloat()
+
+        val canvas = Canvas(background)
+        val scale: Float = height / originalHeight
+
+        val xTranslation: Float = (width - originalWidth * scale) / 2.0f
+        val yTranslation = 0.0f
+
+        val transformation = Matrix()
+        transformation.postTranslate(xTranslation, yTranslation)
+        transformation.preScale(scale, scale)
+
+        val paint = Paint()
+        paint.isFilterBitmap = true
+        canvas.drawBitmap(originalImage, transformation, paint)
+
+        background
+    }
+}
diff --git a/app/src/main/java/app/olauncher/ui/MainFragment.kt b/app/src/main/java/app/olauncher/ui/MainFragment.kt
index 80152fa..8b3c6ac 100644
--- a/app/src/main/java/app/olauncher/ui/MainFragment.kt
+++ b/app/src/main/java/app/olauncher/ui/MainFragment.kt
@@ -5,6 +5,7 @@ import android.app.admin.DevicePolicyManager
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
+import android.content.res.Resources
 import android.os.Bundle
 import android.provider.AlarmClock
 import android.provider.MediaStore
@@ -137,6 +138,7 @@ class MainFragment : Fragment(), View.OnClickListener, View.OnLongClickListener
     }
 
     private fun initClickListeners() {
+        wallpaper.setOnClickListener(this)
         homeApp1.setOnClickListener(this)
         homeApp2.setOnClickListener(this)
         homeApp3.setOnClickListener(this)
@@ -172,6 +174,12 @@ class MainFragment : Fragment(), View.OnClickListener, View.OnLongClickListener
 
     override fun onClick(view: View) {
         when (view.id) {
+            R.id.wallpaper -> {
+                val width = Resources.getSystem().displayMetrics.widthPixels
+                val height = Resources.getSystem().displayMetrics.heightPixels
+                viewModel.setWallpaper(width, height, "https://images.unsplash.com/photo-1516410529446-2c777cb7366d?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1834&q=80")
+            }
+
             R.id.homeApp1 -> if (prefs.appPackage1.isEmpty()) onLongClick(view)
             else launchAppEvent(prefs.appName1, prefs.appPackage1)
 
diff --git a/app/src/main/res/layout/main_fragment.xml b/app/src/main/res/layout/main_fragment.xml
index 9d595f1..4f8a770 100644
--- a/app/src/main/res/layout/main_fragment.xml
+++ b/app/src/main/res/layout/main_fragment.xml
@@ -119,4 +119,12 @@
         android:text="@string/set_as_default_launcher"
         android:visibility="gone" />
 
+    <TextView
+        android:id="@+id/wallpaper"
+        style="@style/TextSmallLight"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="24dp"
+        android:text="Wallpaper" />
+
 </LinearLayout>
\ No newline at end of file