I am trying to send data (simple string in the moment) from app A to app B both built with unity. but its not working. the best solution i found was using “Intent”. but I am still not able to make it work.
this is what I have:
I have a java code with the intent:
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
class ShareTextActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String textToShare = "HARDTestData";
// Create an intent to share text
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_TEXT, textToShare);
shareIntent.setType("text/plain");
// Start activity to share text
startActivity(Intent.createChooser(shareIntent, "Share text with:"));
finish(); // close this activity
}
}
and am trying to send/get call like this:
private static readonly string _gameAndroidClassName = "com.GameCompany.Game"; // path to java class
private static readonly string _hubAndroidClassName = "com.HubCompany.Hub"; // path to java class
private void ShareIntentData()
{
//Listener(message);
try
{
if (role == Role.Game)
{
AndroidJavaClass androidClass = new AndroidJavaClass(_gameAndroidClassName);
androidClass.CallStatic("startActivity");
}
else
{
AndroidJavaClass androidClass = new AndroidJavaClass(_hubAndroidClassName);
androidClass.CallStatic("startActivity");
}
// Start java class to send intent
Debug.Log("Android test intent activity started");
}
catch (Exception e)
{
Debug.LogError("Error calling Android function: " + e);
}
}
public void FetchIntentData()
{
//AndroidJavaClass unityPlayer = new AndroidJavaClass("com.DefaultCompany.PlaymobilLifeHardwareSoftwareInterface.UnityMainActivityPlaymobil");
AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.ShareTextActivity");
AndroidJavaObject currentActivity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
// Retrieve the intent that started this activity
AndroidJavaObject intent = currentActivity.Call<AndroidJavaObject>("getIntent");
if (intent != null)
{
// Check if the intent has the data you want (in this case, "EXTRA_TEXT")
bool hasExtra = intent.Call<bool>("hasExtra", "android.intent.extra.TEXT");
if (hasExtra)
{
// Fetch the shared text data
string sharedText = intent.Call<string>("getStringExtra", "android.intent.extra.TEXT");
RecivedString(Role.Hub, sharedText);
//IntentDisplay.text = sharedText;
// Use the shared text data in your Unity code
Debug.Log("Shared Text: " + sharedText);
}
}
}
I set the AndroidManifest.xml file like below and it builds and everything . but nothing happens when I call those methods
<!-- The activity for sending and receiving shared text data -->
<activity android:name="com.unity3d.player.ShareTextActivity" android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="text/plain" />
</intent-filter>
</activity>
Logcat is your fried to diagnose the problems.
What I can quikly spot in your C# code:
- you access the classes of your Java activities and call static method startActivity on them, while startActivity is instance method, can only be called on activity object
- you access static field currentActivity from your ShareTextActivity class, which does not have such; currentActivity field is in UnityPlayer class, not elsewhere (unless you add it yourself)
Thanks. I will definitely give it a try. If I get Stuck I will come back XD
I realy dont know what I am doing anymore. I did add the logcat in Unity I created the Java file ShareTextActivity.java set the android manifest and am atempting to do the lines of code but is just not working.
I just wanted to send a string
from one app to another and I cant achieve it.
this is my android manifest:
[code=CSharp]<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.unity3d.player"
xmlns:tools="http://schemas.android.com/tools">
<application
android:icon="@mipmap/app_icon"
android:label="@string/app_name"
android:theme="@style/UnityThemeSelector">
<!-- The main Unity activity -->
<activity android:name="com.unity3d.player.UnityPlayerActivity"
android:theme="@style/UnityThemeSelector">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data android:name="unityplayer.UnityActivity" android:value="true" />
</activity>
<!-- The activity for sending and receiving shared text data -->
<activity android:name="com.unity3d.player.ShareTextActivity" android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="text/plain" />
</intent-filter>
</activity>
</application>
</manifest>[/code]
this is a java class I created:
[code=CSharp]package com.unity3d.player;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
public class ShareTextActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Add your custom code for handling shared text data here
Intent intent = getIntent();
if (intent != null && intent.getAction().equals(Intent.ACTION_SEND)) {
String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
if (sharedText != null) {
// Handle the shared text data
}
}
finish();
}
}[/code]
and this is the method that I am calling to send the string:
[code=CSharp] public void StartShareTextActivity2(string textToShare)
{
AndroidJavaObject intentObject = new AndroidJavaObject("android.content.Intent");
// Set the action and data for the intent
intentObject.Call<AndroidJavaObject>("setAction", "android.intent.action.SEND");
intentObject.Call<AndroidJavaObject>("putExtra", "android.intent.extra.TEXT", textToShare);
intentObject.Call<AndroidJavaObject>("setType", "text/plain");
// Create a new intent to start the ShareTextActivity
AndroidJavaObject componentName = new AndroidJavaObject("android.content.ComponentName", _gameAndroidClassName, "com.unity3d.player.ShareTextActivity");
intentObject.Call<AndroidJavaObject>("setComponent", componentName);
// Get the currentActivity from UnityPlayer
AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
AndroidJavaObject currentActivity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
// Start the activity
currentActivity.Call("startActivity", intentObject);
intentObject.Dispose();
}[/code]
my lack of knowledge on all this android side is realy hiting hard but I realy have no clue how to do this. All that I wanted was to send a text from one app to another [I don't really care how]...
forgot to mention the error I am getting from logcat:
2023/10/19 14:45:51.198 12835 12835 Error AndroidRuntime java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.GameCompany.Game/com.unity3d.player.ShareTextActivity}: java.lang.ClassNotFoundException: Didn’t find class “com.unity3d.player.ShareTextActivity” on path: DexPathList[[zip file “/data/app/~~O6Js8FLqFSWLVFRTvcQIiw==/com.GameCompany.Game-ahddcyYKj7vGji7PZ7iAXA==/base.apk”],nativeLibraryDirectories=[/data/app/~~O6Js8FLqFSWLVFRTvcQIiw==/com.GameCompany.Game-ahddcyYKj7vGji7PZ7iAXA==/lib/arm, /data/app/~~O6Js8FLqFSWLVFRTvcQIiw==/com.GameCompany.Game-ahddcyYKj7vGji7PZ7iAXA==/base.apk!/lib/armeabi-v7a, /system/lib, /system_ext/lib, /product/lib]]
Is Java class in your application?
Also, have a look at minification settings, maybe class was obfuscated.
I found a way to send intent:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Intent
{
static AndroidJavaClass IntentClass;
static AndroidJavaObject sendIntent;
static AndroidJavaClass UnityPlayer;
static AndroidJavaObject currentActivity;
static bool IsInitialized = false;
static void Initialize()
{
IsInitialized = true;
string className = "android.content.Intent";
IntentClass = new AndroidJavaClass(className);
//Intent sendIntent = new Intent();
sendIntent = new AndroidJavaObject(className);
UnityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
currentActivity = UnityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
}
public static void IntentShareText(string text)
{
if (Application.platform != RuntimePlatform.Android)
{
return;
}
#if UNITY_ANDROID
if (!IsInitialized)
{
Initialize(); // Initialize Android-related objects
}
//sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.Call<AndroidJavaObject>("setAction", IntentClass.GetStatic<string>("ACTION_SEND"));
//sendIntent.putExtra(Intent.EXTRA_TEXT, textMessage);
sendIntent.Call<AndroidJavaObject>("putExtra", IntentClass.GetStatic<string>("EXTRA_TEXT"), text);
//sendIntent.setType("text/plain");
sendIntent.Call<AndroidJavaObject>("setType", "text/plain");
//startActivity(sendIntent);
currentActivity.Call("startActivity", sendIntent);
}
#endif
}
and than a simple send button:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class IntentShareButton : MonoBehaviour
{
float score = 10;
//button press executes this method
public void OnShareButtonPressed()
{
Intent.IntentShareText("This game is awsome! I scored"+ score.ToString()+ "Try it getting at play store: blabla.bla");
}
}
the new challenge is having the other Unity apk listen to it. still have not figured out
