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Kotlin extension functions to start a generic Activity
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package com.pascalwelsch.extensions | |
import android.app.Activity | |
import android.content.Context | |
import android.content.Intent | |
import android.os.Build | |
import android.os.Bundle | |
/** | |
* Extensions for simpler launching of Activities | |
*/ | |
inline fun <reified T : Any> Activity.launchActivity( | |
requestCode: Int = -1, | |
options: Bundle? = null, | |
noinline init: Intent.() -> Unit = {}) { | |
val intent = newIntent<T>(this) | |
intent.init() | |
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { | |
startActivityForResult(intent, requestCode, options) | |
} else { | |
startActivityForResult(intent, requestCode) | |
} | |
} | |
inline fun <reified T : Any> Context.launchActivity( | |
options: Bundle? = null, | |
noinline init: Intent.() -> Unit = {}) { | |
val intent = newIntent<T>(this) | |
intent.init() | |
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { | |
startActivity(intent, options) | |
} else { | |
startActivity(intent) | |
} | |
} | |
inline fun <reified T : Any> newIntent(context: Context): Intent = | |
Intent(context, T::class.java) |
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It's important to call the correct method though.
startActivity
might be overridden or - unlikely - the internal implementation might change.