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Code Issues Releases Wiki Activity

manage USB permission intent

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This commit is contained in:
Kai Morich 2019-10-21 20:56:13 +02:00
parent 6a50595274
commit ac1fe40793
1 changed files with 35 additions and 5 deletions
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40
usbSerialExamples/src/main/java/com/hoho/android/usbserial/examples/DeviceListActivity.java
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@ -22,7 +22,11 @@
package com.hoho.android.usbserial.examples;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager;
import android.os.AsyncTask;
@ -39,6 +43,7 @@ import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.TwoLineListItem;
import com.hoho.android.usbserial.driver.UsbSerialDriver;
@ -59,12 +64,14 @@ public class DeviceListActivity extends Activity {
private final String TAG = DeviceListActivity.class.getSimpleName();
private UsbManager mUsbManager;
private UsbSerialPort mSerialPort;
private ListView mListView;
private TextView mProgressBarTitle;
private ProgressBar mProgressBar;
private static final int MESSAGE_REFRESH = 101;
private static final long REFRESH_TIMEOUT_MILLIS = 5000;
public static final String INTENT_ACTION_GRANT_USB = BuildConfig.APPLICATION_ID + ".GRANT_USB";
private final Handler mHandler = new Handler() {
@Override
@ -81,6 +88,7 @@ public class DeviceListActivity extends Activity {
}
};
private BroadcastReceiver mUsbReceiver;
private List<UsbSerialPort> mEntries = new ArrayList<UsbSerialPort>();
private ArrayAdapter<UsbSerialPort> mAdapter;
@ -89,11 +97,25 @@ public class DeviceListActivity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final Context context = this;
mUsbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
mListView = (ListView) findViewById(R.id.deviceList);
mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
mProgressBarTitle = (TextView) findViewById(R.id.progressBarTitle);
mListView = findViewById(R.id.deviceList);
mProgressBar = findViewById(R.id.progressBar);
mProgressBarTitle = findViewById(R.id.progressBarTitle);
mUsbReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals(INTENT_ACTION_GRANT_USB)) {
if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) {
showConsoleActivity(mSerialPort);
} else {
Toast.makeText(context, "USB permission denied", Toast.LENGTH_SHORT).show();
}
}
}
};
mAdapter = new ArrayAdapter<UsbSerialPort>(this,
android.R.layout.simple_expandable_list_item_2, mEntries) {
@ -135,8 +157,14 @@ public class DeviceListActivity extends Activity {
return;
}
final UsbSerialPort port = mEntries.get(position);
showConsoleActivity(port);
mSerialPort = mEntries.get(position);
UsbDevice device = mSerialPort.getDriver().getDevice();
if (!mUsbManager.hasPermission(device)) {
PendingIntent usbPermissionIntent = PendingIntent.getBroadcast(context, 0, new Intent(INTENT_ACTION_GRANT_USB), 0);
mUsbManager.requestPermission(device, usbPermissionIntent);
} else {
showConsoleActivity(mSerialPort);
}
}
});
}
@ -145,12 +173,14 @@ public class DeviceListActivity extends Activity {
protected void onResume() {
super.onResume();
mHandler.sendEmptyMessage(MESSAGE_REFRESH);
registerReceiver(mUsbReceiver, new IntentFilter(INTENT_ACTION_GRANT_USB));
}
@Override
protected void onPause() {
super.onPause();
mHandler.removeMessages(MESSAGE_REFRESH);
unregisterReceiver(mUsbReceiver);
}
private void refreshDeviceList() {