joelwass / android-ble-scan-example

This is a simple example app that turns on ble and scans for devices, listing them out. It's for Android API 23

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visit at https://joelwass.io/

android-ble-scan-example's Issues

It doesn't work

This is the error reported by Android Studio
FAILURE: Build failed with an exception.

• What went wrong:
  A problem occurred configuring project ':app'.

Failed to notify project evaluation listener.
org.gradle.api.tasks.compile.CompileOptions.setBootClasspath(Ljava/lang/String;)V

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 10s
ERROR: Unable to find method 'org.gradle.api.tasks.compile.CompileOptions.setBootClasspath(Ljava/lang/String;)V'.
Possible causes for this unexpected error include:
Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.)
Re-download dependencies and sync project (requires network)

The state of a Gradle build process (daemon) may be corrupt. Stopping all Gradle daemons may solve this problem.
Stop Gradle build processes (requires restart)

Your project may be using a third-party plugin which is not compatible with the other plugins in the project or the version of Gradle requested by the project.

In the case of corrupt Gradle processes, you can also try closing the IDE and then killing all Java processes.

hey, i was able to scan and connect to the ble device! can anyone help me in reading data or writing data to the ble? thank you

Trying to run this on New versions of android studio

The code zip asks for Gradle 2.8. However my version of Android studio requires at least Gradle 4.9. Is there an easy way to change the required Gradle version within the code?

Device name null?

My devices are advertising the device name but I don't what the f problem with BLE it is not reading whole advertising data can you please tell me how to do it?

Android 10 needs more permissions

details: https://stackoverflow.com/questions/58428763/android-10-not-working-with-ble-bluetooth-scanning

add to manifest:

   <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

You may want to change in MainActivity:

    protected void onCreate(Bundle savedInstanceState) {
        ...
        CheckPermissions(new String[] { Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_BACKGROUND_LOCATION,
                Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE,
                Manifest.permission.ACCESS_FINE_LOCATION,   Manifest.permission.BLUETOOTH_ADMIN});

    }

    private void CheckPermissions(String[] aPermission)
    {
        ArrayList<String> aRequest = new ArrayList<String>();
        for (int i=0; i<aPermission.length; i++)
            if (ContextCompat.checkSelfPermission(this,aPermission[i])
                    != PackageManager.PERMISSION_GRANTED)
                aRequest.add(aPermission[i]);

        if (aRequest.size() > 0)
            ActivityCompat.requestPermissions(this, aRequest.toArray(new String[0]), 1);
    }

As i am a beginner i did not care to update 

public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {

The project uses Gradle 2.10 which is incompatible with Android Studio 2021.3.

looks hard to set up with last android studio

How should i filter the device here?