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[[ Bug 22950 ]] Add StartActivityForResult to Android Utils
This patch adds new handler to facilitate starting activities by Intent and handling results. The `StartActivityForResult` handler registers a listener to handle the `onActivityResult` method of the engine activity and when handled calls a callback handler with the request code, result code and Intent object.
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‎extensions/modules/android-utils/android-utils.lcb‎

Lines changed: 147 additions & 1 deletion
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@@ -26,7 +26,7 @@ use com.livecode.java
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use com.livecode.canvas
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use com.livecode.library.widgetutils
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metadata version is "1.0.0"
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metadata version is "1.1.0"
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metadata author is "LiveCode"
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metadata title is "Android Utilities"
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metadata os is "android"
@@ -90,6 +90,152 @@ public handler ApplicationContext() returns JObject
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return _JNI_GetEngineContext(_JNI_GetAndroidEngine())
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end handler
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private variable sResultListeners as Array
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public handler type OnActivityResultHandler(\
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in pRequestCode as JInt, \
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in pResultCode as JInt, \
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in pIntent as optional JObject) returns nothing
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handler _OnActivityResultListener(\
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in pRequestCode as JObject, \
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in pResultCode as JObject, \
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in pIntent as optional JObject) returns nothing
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variable tContext as JObject
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put ApplicationContext() into tContext
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variable tRequestCode as JInt
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put _JNI_NumberIntValue(pRequestCode) into tRequestCode
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variable tResultCode as JInt
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put _JNI_NumberIntValue(pResultCode) into tResultCode
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_JNI_LiveCodeActivityRemoveOnActivityResultListener(tContext, tResultCode)
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variable tRequestCodeString as String
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put tRequestCode formatted as string into tRequestCodeString
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if tRequestCodeString is among the keys of sResultListeners then
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variable tHandler as OnActivityResultHandler
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put sResultListeners[tRequestCodeString] into tHandler
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delete sResultListeners[tRequestCodeString]
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tHandler(tRequestCode, tResultCode, pIntent)
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end if
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end handler
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__safe foreign handler _JNI_LiveCodeActivityOnActivityResultListener( \
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in pCallbacks as Array) returns JObject \
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binds to "java:com.runrev.android.LiveCodeActivity$OnActivityResultListener>interface()"
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__safe foreign handler _JNI_LiveCodeActivitySetOnActivityResultListener( \
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in pEngine as JObject, \
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in pListener as JObject, \
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in pRequestCode as JInt) returns nothing \
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binds to "java:com.runrev.android.LiveCodeActivity>setOnActivityResultListener(Lcom/runrev/android/LiveCodeActivity$OnActivityResultListener;I)V"
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__safe foreign handler _JNI_LiveCodeActivityRemoveOnActivityResultListener( \
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in pEngine as JObject, \
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in pRequestCode as JInt) returns nothing \
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binds to "java:com.runrev.android.LiveCodeActivity>removeOnActivityResultListener(I)V"
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__safe foreign handler _JNI_ActivityStartActivityForResult( \
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in pActivity as JObject, \
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in pIntent as JObject, \
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in pRequestCode as JInt) \
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returns nothing \
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binds to "java:android.app.Activity>startActivityForResult(Landroid/content/Intent;I)V"
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__safe foreign handler _JNI_NumberIntValue(in pNumber as JObject) returns JInt \
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binds to "java:java.lang.Number>intValue()I"
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/**
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Summary: Start an activity by Intent
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Example:
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constant kIntentACTION_SEND is "android.intent.action.SEND"
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constant kIntentEXTRA_TEXT is "android.intent.extra.TEXT"
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constant kActivityRESULT_CANCELED is 0
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constant kShareStringRequestCode is 123
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__safe foreign handler _JNI_IntentNew(in pAction as JString) \
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returns JObject \
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binds to "java:android.content.Intent>new(Ljava/lang/String;)"
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__safe foreign handler _JNI_IntentSetType(in pIntent as JObject, \
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in pType as JString) \
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returns JObject \
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binds to "java:android.content.Intent>setType(Ljava/lang/String;)Landroid/content/Intent;"
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__safe foreign handler _JNI_IntentPutExtraString(in pIntent as JObject, \
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in pType as JString, \
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in pValue as JString) \
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returns JObject \
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binds to "java:android.content.Intent>putExtra(Ljava/lang/String;Ljava/lang/String;)Landroid/content/Intent;"
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handler _ShareStringResultListener( \
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in pRequestCode as JInt, \
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in pResultCode as JInt, \
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in pIntent as optional JObject) returns nothing
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if pResultCode is kActivityRESULT_CANCELED then
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post "shareStringCancelled"
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else
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post "shareStringComplete"
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end if
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end handler
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public handler ShareString(in pString as String) returns nothing
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variable tIntent as JObject
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put _JNI_IntentNew(StringToJString(kIntentACTION_SEND)) into tIntent
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_JNI_IntentSetType(tIntent, StringToJString("text/plain"))
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_JNI_IntentPutExtraString(tIntent, StringToJString(kIntentEXTRA_TEXT), \
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StringToJString(pString))
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StartActivityForResult(tIntent, kShareStringRequestCode, _ShareStringResultListener)
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end handler
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Parameters:
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pIntent: An Intent JObject to use to start an activity
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pRequestCode: A positive integer used to identify the request when handling
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`onActivityResult`.
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pHandler: A handler that conforms to the `OnActivityResultHandler` type
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Description:
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Start an activity by Intent and receive a callback to the specified handler when
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the LiveCode activity receives the result via the `onActivityResult` method.
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The callback must conform to the `OnActivityResultHandler` type which returns
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nothing and has parameters:
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- in pRequestCode as JInt
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- in pResultCode as JInt
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- in pIntent as optional JObject
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*/
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public handler StartActivityForResult( \
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in pIntent as JObject, \
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in pRequestCode as JInt, \
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in pHandler as OnActivityResultHandler) returns nothing
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variable tContext as JObject
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put ApplicationContext() into tContext
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variable tListener as JObject
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put _JNI_LiveCodeActivityOnActivityResultListener(\
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{"onActivityResult" : _OnActivityResultListener }) into tListener
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_JNI_LiveCodeActivitySetOnActivityResultListener(tContext, tListener, pRequestCode)
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put pHandler into sResultListeners[pRequestCode formatted as string]
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_JNI_ActivityStartActivityForResult(tContext, pIntent, pRequestCode)
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end handler
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private foreign handler MCAndroidCheckRuntimePermission(in pPermission as String) \
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returns CBool binds to "<builtin>"
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‎extensions/modules/android-utils/notes/22950.md‎

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@@ -0,0 +1,6 @@
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# Starting Activities and Handling Results
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A new handler has been added to facilitate starting activities by Intent and
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handling results. The `StartActivityForResult` handler registers a listener to
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handle the `onActivityResult` method of the engine activity and when handled
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calls a callback handler with the request code, result code and Intent object.

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