Android BLEアプリが動かない

2020年6月22日未分類

CypressのGitソースをコピーしてBuildしたBLEアプリを動かしてみたが、
“Search for Device”から先に進まない。
起動後、”Search for Device”を２回押下したときのログは以下。

2020-06-22 22:59:21.570 31186-31211/com.example.ble101 I/Adreno: QUALCOMM build                   : f7ad136, I02d3f1c2c3
    Build Date                       : 11/03/17
    OpenGL ES Shader Compiler Version: EV031.20.00.04
    Local Branch                     : 
    Remote Branch                    : refs/tags/AU_LINUX_ANDROID_LA.BR.1.3.7_RB1.08.00.00.336.020
    Remote Branch                    : NONE
    Reconstruct Branch               : NOTHING
2020-06-22 22:59:21.583 31186-31211/com.example.ble101 I/Adreno: PFP: 0x005ff087, ME: 0x005ff063
2020-06-22 22:59:21.602 31186-31211/com.example.ble101 I/OpenGLRenderer: Initialized EGL, version 1.4
2020-06-22 22:59:21.602 31186-31211/com.example.ble101 D/OpenGLRenderer: Swap behavior 2
2020-06-22 22:59:28.697 31186-31186/com.example.ble101 D/MainActivity: Starting BLE Service
2020-06-22 22:59:28.708 31186-31186/com.example.ble101 D/MainActivity: Bluetooth is Enabled
2020-06-22 22:59:28.751 31186-31186/com.example.ble101 I/MainActivity: onServiceConnected
2020-06-22 22:59:32.207 31186-31222/com.example.ble101 D/BluetoothAdapter: onBluetoothServiceUp: android.bluetooth.IBluetooth$Stub$Proxy@7faa39a
2020-06-22 22:59:41.818 31186-31186/com.example.ble101 D/BluetoothAdapter: isLeEnabled(): ON
2020-06-22 22:59:41.828 31186-31198/com.example.ble101 D/BluetoothLeScanner: onScannerRegistered() - status=0 scannerId=7 mScannerId=0
2020-06-22 23:00:01.532 31186-31191/com.example.ble101 I/zygote64: Do partial code cache collection, code=28KB, data=29KB
2020-06-22 23:00:01.532 31186-31191/com.example.ble101 I/zygote64: After code cache collection, code=28KB, data=29KB
2020-06-22 23:00:01.532 31186-31191/com.example.ble101 I/zygote64: Increasing code cache capacity to 128KB
2020-06-22 23:00:01.634 31186-31186/com.example.ble101 D/BluetoothAdapter: isLeEnabled(): ON
2020-06-22 23:00:21.184 31186-31193/com.example.ble101 I/zygote64: System.exit called, status: 1
2020-06-22 23:00:21.185 31186-31193/com.example.ble101 I/AndroidRuntime: VM exiting with result code 1, cleanup skipped.

2020-06-22 22:59:21.570 31186-31211/com.example.ble101 I/Adreno: QUALCOMM build : f7ad136, I02d3f1c2c3

Build Date : 11/03/17

OpenGL ES Shader Compiler Version: EV031.20.00.04

Local Branch :

Remote Branch : refs/tags/AU_LINUX_ANDROID_LA.BR.1.3.7_RB1.08.00.00.336.020

Remote Branch : NONE

Reconstruct Branch : NOTHING

2020-06-22 22:59:21.583 31186-31211/com.example.ble101 I/Adreno: PFP: 0x005ff087, ME: 0x005ff063

2020-06-22 22:59:21.602 31186-31211/com.example.ble101 I/OpenGLRenderer: Initialized EGL, version 1.4

2020-06-22 22:59:21.602 31186-31211/com.example.ble101 D/OpenGLRenderer: Swap behavior 2

2020-06-22 22:59:28.697 31186-31186/com.example.ble101 D/MainActivity: Starting BLE Service

2020-06-22 22:59:28.708 31186-31186/com.example.ble101 D/MainActivity: Bluetooth is Enabled

2020-06-22 22:59:28.751 31186-31186/com.example.ble101 I/MainActivity: onServiceConnected

2020-06-22 22:59:32.207 31186-31222/com.example.ble101 D/BluetoothAdapter: onBluetoothServiceUp: android.bluetooth.IBluetooth$Stub$Proxy@7faa39a

2020-06-22 22:59:41.818 31186-31186/com.example.ble101 D/BluetoothAdapter: isLeEnabled(): ON

2020-06-22 22:59:41.828 31186-31198/com.example.ble101 D/BluetoothLeScanner: onScannerRegistered() - status=0 scannerId=7 mScannerId=0

2020-06-22 23:00:01.532 31186-31191/com.example.ble101 I/zygote64: Do partial code cache collection, code=28KB, data=29KB

2020-06-22 23:00:01.532 31186-31191/com.example.ble101 I/zygote64: After code cache collection, code=28KB, data=29KB

2020-06-22 23:00:01.532 31186-31191/com.example.ble101 I/zygote64: Increasing code cache capacity to 128KB

2020-06-22 23:00:01.634 31186-31186/com.example.ble101 D/BluetoothAdapter: isLeEnabled(): ON

2020-06-22 23:00:21.184 31186-31193/com.example.ble101 I/zygote64: System.exit called, status: 1

2020-06-22 23:00:21.185 31186-31193/com.example.ble101 I/AndroidRuntime: VM exiting with result code 1, cleanup skipped.

最初に”Start Bluetooth”をクリックすると、”Start Bluetooth”がグレーアウトして、”Search for Device”が有効化される。
それぞれのonClickで呼ばれる関数は、activity_main.xmlから以下。

    &lt;Button
        android:id="@+id/start_button"
        android:text="@string/Start"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAllCaps="false"
        android:enabled="true"
        android:onClick="startBluetooth"
        />

    &lt;Button
        android:id="@+id/search_button"
        android:text="@string/Search"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAllCaps="false"
        android:enabled="false"
        android:onClick="searchBluetooth"
        />

<Button

android:id="@+id/start_button"

android:text="@string/Start"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:textAllCaps="false"

android:enabled="true"

android:onClick="startBluetooth"

<Button

android:id="@+id/search_button"

android:text="@string/Search"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:textAllCaps="false"

android:enabled="false"

android:onClick="searchBluetooth"

startBluetooth()

MainActivity.javaで以下のように定義。

    public void startBluetooth(View view) {

        // Find BLE service and adapter
        final BluetoothManager bluetoothManager =
                (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
        BluetoothAdapter mBluetoothAdapter = bluetoothManager.getAdapter();

        // Ensures Bluetooth is enabled on the device.  If Bluetooth is not currently enabled,
        // fire an intent to display a dialog asking the user to grant permission to enable it.
        if (!mBluetoothAdapter.isEnabled()) {
            Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(enableBtIntent, REQUEST_ENABLE_BLE);
        }

        // Start the BLE Service
        Log.d(TAG, "Starting BLE Service");
        Intent gattServiceIntent = new Intent(this, PSoCCapSenseLedService.class);
        bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE);

        // Disable the start button and turn on the search  button
        start_button.setEnabled(false);
        search_button.setEnabled(true);
        Log.d(TAG, "Bluetooth is Enabled");
    }

public void startBluetooth(View view) {

// Find BLE service and adapter

final BluetoothManager bluetoothManager =

(BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);

BluetoothAdapter mBluetoothAdapter = bluetoothManager.getAdapter();

// Ensures Bluetooth is enabled on the device. If Bluetooth is not currently enabled,

// fire an intent to display a dialog asking the user to grant permission to enable it.

if (!mBluetoothAdapter.isEnabled()) {

Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);

startActivityForResult(enableBtIntent, REQUEST_ENABLE_BLE);

}

// Start the BLE Service

Log.d(TAG, "Starting BLE Service");

Intent gattServiceIntent = new Intent(this, PSoCCapSenseLedService.class);

bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE);

// Disable the start button and turn on the search button

start_button.setEnabled(false);

search_button.setEnabled(true);

Log.d(TAG, "Bluetooth is Enabled");

}

最後の方でmServiceConnectionをbindServiceして、ボタンの無効／有効化している。

searchBluetooth()

MainActivity.javaで以下のように定義。

    public void searchBluetooth(View view) {
        if(mServiceConnected) {
            mPSoCCapSenseLedService.scan();
        }

        /* After this we wait for the scan callback to detect that a device has been found */
        /* The callback broadcasts a message which is picked up by the mGattUpdateReceiver */
    }

public void searchBluetooth(View view) {

if(mServiceConnected) {

mPSoCCapSenseLedService.scan();

}

/* After this we wait for the scan callback to detect that a device has been found */

/* The callback broadcasts a message which is picked up by the mGattUpdateReceiver */

}

mServiceConnectedは変数で、これをtrueにするのは、MainActivity.javaのonServiceConnected関数。

    private final ServiceConnection mServiceConnection = new ServiceConnection() {

        /**
         * This is called when the PSoCCapSenseLedService is connected
         *
         * @param componentName the component name of the service that has been connected
         * @param service service being bound
         */
        @Override
        public void onServiceConnected(ComponentName componentName, IBinder service) {
            Log.i(TAG, "onServiceConnected");
            mPSoCCapSenseLedService = ((PSoCCapSenseLedService.LocalBinder) service).getService();
            mServiceConnected = true;
            mPSoCCapSenseLedService.initialize();
        }

private final ServiceConnection mServiceConnection = new ServiceConnection() {

/**

* This is called when the PSoCCapSenseLedService is connected

* @param componentName the component name of the service that has been connected

* @param service service being bound

@Override

public void onServiceConnected(ComponentName componentName, IBinder service) {

Log.i(TAG, "onServiceConnected");

mPSoCCapSenseLedService = ((PSoCCapSenseLedService.LocalBinder) service).getService();

mServiceConnected = true;

mPSoCCapSenseLedService.initialize();

}

Android BLEアプリが動かない

startBluetooth()

searchBluetooth()

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