Convert Map to Bundle in android
Is there an easy way to convert a Map to a Bundle in android without explicit iteration?
Why?
Firebase returns a Map for Notification getData()
. I need to pass the data to an intent. Formerly GCM gave me a bundle, so I didn't need to worry about this.
I guess a good old fashioned for loop is the easiest way:
Bundle bundle = new Bundle();
for (Map.Entry<String, String> entry : getData().entrySet()) {
bundle.putString(entry.getKey(), entry.getValue());
}
Neat Kotlin solution using spread operator will look like that:
fun Map<String, Any?>.toBundle(): Bundle = bundleOf(*this.toList().toTypedArray())
Came across this same issue with firebase messaging and created a kotlin extension function for it. The gist is here, code below. Although I am using this method there are some caveats:
- it doesn't cover all of the types that can be put into a bundle
- it is still under development and hasn't been fully tested
With this in mind, please use it as a guide not a definitive solution. I will keep the gist up to date as it evolves.
import android.os.Bundle
import android.os.IBinder
import android.os.Parcelable
import java.io.Serializable
fun <V> Map<String, V>.toBundle(bundle: Bundle = Bundle()): Bundle = bundle.apply {
forEach {
val k = it.key
val v = it.value
when (v) {
is IBinder -> putBinder(k, v)
is Bundle -> putBundle(k, v)
is Byte -> putByte(k, v)
is ByteArray -> putByteArray(k, v)
is Char -> putChar(k, v)
is CharArray -> putCharArray(k, v)
is CharSequence -> putCharSequence(k, v)
is Float -> putFloat(k, v)
is FloatArray -> putFloatArray(k, v)
is Parcelable -> putParcelable(k, v)
is Serializable -> putSerializable(k, v)
is Short -> putShort(k, v)
is ShortArray -> putShortArray(k, v)
// is Size -> putSize(k, v) //api 21
// is SizeF -> putSizeF(k, v) //api 21
else -> throw IllegalArgumentException("$v is of a type that is not currently supported")
// is Array<*> -> TODO()
// is List<*> -> TODO()
}
}
}
Nowadays you can use fun bundleOf(vararg pairs: Pair<String, Any?>)