Delphi 10.3.3, Android App AutoStart on Boot (Android 8.x, 10.x)

Question

I created a java file with following content:

package com.embarcadero.XLRBoot;
     
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Intent;
import android.content.Context;
     
public class startup extends BroadcastReceiver
{
     
    @Override
        public void onReceive(Context context, Intent intent) 
        {
               Intent sintent = new Intent();
           sintent.setClassName(context, "com.embarcadero.firemonkey.FMXNativeActivity");
               sintent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
               context.startActivity(sintent);
        }
     
}

I have created a JAR file from this like this:

C:\Program Files (x86)\Java\jdk1.7.0_71\bin>jar cf com-embarcadero-XLRBoot.jar "d:\Delphi XE 10\XLR Spider\Boot Receiver\com-embarcadero-XLRBoot.java"

My AndroidManifest.template looks like this:

<?xml version="1.0" encoding="utf-8"?>
<!-- BEGIN_INCLUDE(manifest) -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="%package%"
        android:versionCode="%versionCode%"
        android:versionName="%versionName%"
        android:installLocation="%installLocation%">

    <uses-sdk android:minSdkVersion="%minSdkVersion%" android:targetSdkVersion="%targetSdkVersion%" />
    <%uses-permission%>
    <uses-feature android:glEsVersion="0x00020000" android:required="True"/>
    <application android:persistent="%persistent%" 
        android:restoreAnyVersion="%restoreAnyVersion%" 
        android:label="%label%" 
        android:debuggable="%debuggable%" 
        android:largeHeap="%largeHeap%"
        android:icon="%icon%"
        android:theme="%theme%"
        android:hardwareAccelerated="%hardwareAccelerated%"
        android:resizeableActivity="false">

        <%provider%>
        <%application-meta-data%>
        <%uses-libraries%>
        <%services%>
        <!-- Our activity is a subclass of the built-in NativeActivity framework class.
             This will take care of integrating with our NDK code. -->
        <activity android:name="com.embarcadero.firemonkey.FMXNativeActivity"
                android:label="%activityLabel%"
                android:configChanges="orientation|keyboard|keyboardHidden|screenSize"
                android:launchMode="singleTask">
            <!-- Tell NativeActivity the name of our .so -->
            <meta-data android:name="android.app.lib_name"
                android:value="%libNameValue%" />
            <intent-filter>  
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter> 
        </activity>
        <receiver android:name="com.embarcadero.firemonkey.notifications.FMXNotificationAlarm" />
        <receiver android:name="com.embarcadero.XLRBoot"
                android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>
        <!-- Registration is complete -->    
        <%activity%>
        <%receivers%>
    </application>
</manifest>
<!-- END_INCLUDE(manifest) -->

I have set following Permissions in Delphi: [x] Receive boot completed [x] Reorder tasks

I compile my App, Run it, stop it, reboot device. I get an error that it stopped.

In the logs I see following entry:

04-20 12:38:49.087  2769  2769 E AndroidRuntime: FATAL EXCEPTION: main
04-20 12:38:49.087  2769  2769 E AndroidRuntime: Process: com.embarcadero.XLRBoot, PID: 2769
04-20 12:38:49.087  2769  2769 E AndroidRuntime: java.lang.RuntimeException: Unable to instantiate receiver com.embarcadero.XLRBoot: java.lang.ClassNotFoundException: Didn't find class "com.embarcadero.XLRBoot" on path: DexPathList[[zip file "/data/app/com.embarcadero.XLRBoot-OHpYv4loPMPls2q6DuLOLA==/base.apk"],nativeLibraryDirectories=[/data/app/com.embarcadero.XLRBoot-OHpYv4loPMPls2q6DuLOLA==/lib/arm, /data/app/com.embarcadero.XLRBoot-OHpYv4loPMPls2q6DuLOLA==/base.apk!/lib/armeabi-v7a, /system/lib, /system/vendor/lib, /system/vendor/lib/hw]]
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at android.app.ActivityThread.handleReceiver(ActivityThread.java:3174)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at android.app.ActivityThread.-wrap17(Unknown Source:0)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1675)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at android.os.Handler.dispatchMessage(Handler.java:106)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at android.os.Looper.loop(Looper.java:164)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at android.app.ActivityThread.main(ActivityThread.java:6518)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at java.lang.reflect.Method.invoke(Native Method)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
04-20 12:38:49.087  2769  2769 E AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.embarcadero.XLRBoot" on path: DexPathList[[zip file "/data/app/com.embarcadero.XLRBoot-OHpYv4loPMPls2q6DuLOLA==/base.apk"],nativeLibraryDirectories=[/data/app/com.embarcadero.XLRBoot-OHpYv4loPMPls2q6DuLOLA==/lib/arm, /data/app/com.embarcadero.XLRBoot-OHpYv4loPMPls2q6DuLOLA==/base.apk!/lib/armeabi-v7a, /system/lib, /system/vendor/lib, /system/vendor/lib/hw]]
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:125)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    at android.app.ActivityThread.handleReceiver(ActivityThread.java:3169)
04-20 12:38:49.087  2769  2769 E AndroidRuntime:    ... 8 more

I obviously missed something, but what?

Thank you for the help.

Regards Robert

UPDATE 4

I removed the previous updates because I was a bit off. So this is how it seems like I need to properly create the files.

Generate Class File

javac -Xlint:all -classpath "c:\Users\Public\Documents\Embarcadero\Studio\20.0\PlatformSDKs\android-sdk-windows\platforms\android-26\android.jar" "d:\Delphi XE 10\XLR Spider\Boot Receiver\0.2\startup\com\embarcadero\XLRBoot\startup.java" -d "d:\Delphi XE 10\XLR Spider\Boot Receiver\0.2\startup"

Generate JAR file:

jar cf "d:\Delphi XE 10\XLR Spider\Boot Receiver\0.2\startup\com\embarcadero\XLRBoot\startup.jar" -C "d:\Delphi XE 10\XLR Spider\Boot Receiver\0.2\startup\com\embarcadero\XLRBoot" startup.class

Delphi gives a EXEC(1) Exec Error.

Answer 1

Step 1:

create src\com\XLR folder in your App Directory

there create the file BootReceiver.java with the following content:

package com.XLR;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Intent;
import android.content.Context;

public class BootReceiver extends BroadcastReceiver
{

        @Override
        public void onReceive(Context context, Intent intent) 
        {
           Intent launchintent = new Intent();
           launchintent.setClassName(context, "com.embarcadero.firemonkey.FMXNativeActivity");           
           launchintent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
           context.startActivity(launchintent);  
        }

}

Step 2:

Under your App Directory create build.bat with following content:

@echo off
echo.
echo Compiles your Java code into classes.dex
echo Verified to work in Delphi 10.3.3
echo.
echo Place this batch in a java folder below your project (project\java)
echo Place the source in project\java\src\com\dannywind\delphi
echo If your source file location or name is different, please modify it below.
echo.

setlocal

set ANDROID_JAR="C:\Users\Public\Documents\Embarcadero\Studio\20.0\PlatformSDKs\android-sdk-windows\platforms\android-26\android.jar"
set DX_LIB="C:\Users\Public\Documents\Embarcadero\Studio\20.0\PlatformSDKs\android-sdk-windows\build-tools\28.0.2\lib"
set EMBO_DEX="D:\PRG\20.0\lib\android\debug\classes.dex"
set PROJ_DIR=%CD%
set VERBOSE=0
set JAVASDK="C:\Program Files (x86)\Java\jdk1.7.0_71\bin"
set DX_BAT="C:\Users\Public\Documents\Embarcadero\Studio\20.0\PlatformSDKs\android-sdk-windows\build-tools\28.0.2\dx.bat"

echo.
echo Compiling the Java source files
echo.
pause
mkdir output 2> nul
mkdir output\classes 2> nul
if x%VERBOSE% == x1 SET VERBOSE_FLAG=-verbose
%JAVASDK%\javac %VERBOSE_FLAG% -Xlint:all -classpath %ANDROID_JAR% -d output\classes -source 1.6 -target 1.6 src\com\XLR\BootReceiver.java

echo.
echo Creating jar containing the new classes
echo.
pause
mkdir output\jar 2> nul
if x%VERBOSE% == x1 SET VERBOSE_FLAG=v
%JAVASDK%\jar c%VERBOSE_FLAG%f output\jar\XLRBoot.jar -C output\classes com


:Exit

endlocal

Step 3:

now run build.bat and it will create the class and jar files in the Output Directory in your App Directory.

Step 4:

Alter your AndroidManifest.template like this

<?xml version="1.0" encoding="utf-8"?>
<!-- BEGIN_INCLUDE(manifest) -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="%package%"
        android:versionCode="%versionCode%"
        android:versionName="%versionName%"
        android:installLocation="%installLocation%">

    <uses-sdk android:minSdkVersion="%minSdkVersion%" android:targetSdkVersion="%targetSdkVersion%" />
    <%uses-permission%>
    <uses-feature android:glEsVersion="0x00020000" android:required="True"/>
    <application android:persistent="%persistent%" 
        android:restoreAnyVersion="%restoreAnyVersion%" 
        android:label="%label%" 
        android:debuggable="%debuggable%" 
        android:largeHeap="%largeHeap%"
        android:icon="%icon%"
        android:theme="%theme%"
        android:hardwareAccelerated="%hardwareAccelerated%"
        android:resizeableActivity="false">

        <%provider%>
        <%application-meta-data%>
        <%uses-libraries%>
        <%services%>
        <!-- Our activity is a subclass of the built-in NativeActivity framework class.
             This will take care of integrating with our NDK code. -->
        <activity android:name="com.embarcadero.firemonkey.FMXNativeActivity"
                android:label="%activityLabel%"
                android:configChanges="orientation|keyboard|keyboardHidden|screenSize"
                android:launchMode="singleTask">
            <!-- Tell NativeActivity the name of our .so -->
            <meta-data android:name="android.app.lib_name"
                android:value="%libNameValue%" />
            <intent-filter>  
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter> 
        </activity>
        <receiver android:name="com.embarcadero.firemonkey.notifications.FMXNotificationAlarm" />
        <receiver android:name="com.XLR.BootReceiver"
                android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>
        <!-- Registration is complete -->    
        <%activity%>
        <%receivers%>
    </application>
</manifest>
<!-- END_INCLUDE(manifest) -->

Step 5:

Add the output\jar\XLRBoot.jar file to your Libraries inside Delphi and Run the programm.

Step 6:

After Run the Program Starts, Stop it Start it again. Now Reboot it will start. Turn Device Off and Turn On again and it will start.

Thank you.

SPECIAL NOTE FOR ANDROID 10:

You must set the Permissions System Alert window in Delphi. And on the Phone under App Info -> Advanced enable the Display over other apps settings.