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add another null check at obtaining the room database
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1 changed files with 5 additions and 3 deletions
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@ -22,11 +22,13 @@ abstract class GalleryDataBase : RoomDatabase() {
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fun getInstance(context: Context): GalleryDataBase {
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fun getInstance(context: Context): GalleryDataBase {
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if (db == null) {
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if (db == null) {
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synchronized(GalleryDataBase::class) {
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synchronized(GalleryDataBase::class) {
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if (db == null) {
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db = Room.databaseBuilder(context.applicationContext, GalleryDataBase::class.java, "gallery.db")
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db = Room.databaseBuilder(context.applicationContext, GalleryDataBase::class.java, "gallery.db")
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.fallbackToDestructiveMigration()
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.fallbackToDestructiveMigration()
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.build()
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.build()
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}
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}
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}
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}
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}
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return db!!
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return db!!
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}
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}
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