Implement function to check for package installation.

Author: tuancoltech

utils/src/main/java/ai/elimu/common/utils/ContextExt.kt

@@ -0,0 +1,40 @@
+package ai.elimu.common.utils
+
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageInfo
+import android.content.pm.PackageManager
+import android.util.Log
+import androidx.appcompat.app.AlertDialog
+
+fun Context.isPackageInstalled(packageName: String,
+                               launchPackage: String,
+                               launchClass: String,
+                               dialogMessage: String,
+                               buttonText: String): Boolean {
+    try {
+        val packageInfoAppstore: PackageInfo =
+            packageManager.getPackageInfo(packageName, 0)
+        Log.i("isPackageInstalled", "packageInfoAppstore.versionCode: " + packageInfoAppstore.versionCode)
+        return true
+    } catch (e: PackageManager.NameNotFoundException) {
+        Log.e("isPackageInstalled","getPackageInfo exception: " + e.message)
+        AlertDialog.Builder(this)
+            .setMessage(dialogMessage)
+            .setPositiveButton(buttonText
+            ) { _, _ ->
+                val openProviderIntent = Intent().apply {
+                    setClassName(launchPackage, launchClass)
+                }
+                try {
+                    startActivity(openProviderIntent)
+                } catch (e: Exception) {
+                    e.printStackTrace()
+                    Log.e("isPackageInstalled", "startActivity exception: " + e.message)
+                }
+            }
+            .setCancelable(false)
+            .create().show()
+        return false
+    }
+}