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Add Bluetooth toggle prompts - settings

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If permission review is enabled toggling bluetoth on or off
results in a user prompt to collect consent. This applies
only to legacy apps, i.e. ones that don't support runtime
permissions as they target SDK 22.

bug:28715749

Change-Id: I5ae0c532c92b2c05a91f0d769ca6744002747fca
This commit is contained in:
Svetoslav Ganov
2016-07-22 20:08:41 -07:00
parent 14349303d7
commit b06766f129
5 changed files with 239 additions and 189 deletions
Download Patch File Download Diff File Expand all files Collapse all files

284
src/com/android/settings/bluetooth/RequestPermissionActivity.java
View File

@@ -42,61 +42,32 @@ public class RequestPermissionActivity extends Activity implements
// Command line to test this
// adb shell am start -a android.bluetooth.adapter.action.REQUEST_ENABLE
// adb shell am start -a android.bluetooth.adapter.action.REQUEST_DISCOVERABLE
// adb shell am start -a android.bluetooth.adapter.action.REQUEST_DISABLE
private static final String TAG = "RequestPermissionActivity";
private static final int MAX_DISCOVERABLE_TIMEOUT = 3600; // 1 hr
// Non-error return code: BT is starting or has started successfully. Used
// by this Activity and RequestPermissionHelperActivity
/* package */ static final int RESULT_BT_STARTING_OR_STARTED = -1000;
private static final int REQUEST_CODE_START_BT = 1;
static final int REQUEST_ENABLE = 1;
static final int REQUEST_ENABLE_DISCOVERABLE = 2;
static final int REQUEST_DISABLE = 3;
private LocalBluetoothAdapter mLocalAdapter;
private int mTimeout = BluetoothDiscoverableEnabler.DEFAULT_DISCOVERABLE_TIMEOUT;
/*
* True if bluetooth wasn't enabled and RequestPermissionHelperActivity was
* started to ask the user and start bt.
*
* If/when that activity returns successfully, display please wait msg then
* go away when bt has started and discovery mode has been enabled.
*/
private boolean mNeededToEnableBluetooth;
// True if requesting BT to be turned on
// False if requesting BT to be turned on + discoverable mode
private boolean mEnableOnly;
private boolean mUserConfirmed;
private int mRequest;
private AlertDialog mDialog;
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent == null) {
return;
}
if (mNeededToEnableBluetooth
&& BluetoothAdapter.ACTION_STATE_CHANGED.equals(intent.getAction())) {
int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothDevice.ERROR);
if (state == BluetoothAdapter.STATE_ON) {
if (mUserConfirmed) {
proceedAndFinish();
}
}
}
}
};
private BroadcastReceiver mReceiver;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setResult(Activity.RESULT_CANCELED);
// Note: initializes mLocalAdapter and returns true on error
if (parseIntent()) {
finish();
@@ -105,68 +76,98 @@ public class RequestPermissionActivity extends Activity implements
int btState = mLocalAdapter.getState();
switch (btState) {
case BluetoothAdapter.STATE_OFF:
case BluetoothAdapter.STATE_TURNING_OFF:
case BluetoothAdapter.STATE_TURNING_ON:
/*
* Strictly speaking STATE_TURNING_ON belong with STATE_ON;
* however, BT may not be ready when the user clicks yes and we
* would fail to turn on discovery mode. By kicking this to the
* RequestPermissionHelperActivity, this class will handle that
* case via the broadcast receiver.
*/
/*
* Start the helper activity to:
* 1) ask the user about enabling bt AND discovery
* 2) enable BT upon confirmation
*/
registerReceiver(mReceiver,
new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED));
Intent intent = new Intent();
intent.setClass(this, RequestPermissionHelperActivity.class);
if (mEnableOnly) {
intent.setAction(RequestPermissionHelperActivity.ACTION_INTERNAL_REQUEST_BT_ON);
} else {
intent.setAction(RequestPermissionHelperActivity.
ACTION_INTERNAL_REQUEST_BT_ON_AND_DISCOVERABLE);
intent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, mTimeout);
}
startActivityForResult(intent, REQUEST_CODE_START_BT);
mNeededToEnableBluetooth = true;
break;
case BluetoothAdapter.STATE_ON:
if (mEnableOnly) {
// Nothing to do. Already enabled.
if (mRequest == REQUEST_DISABLE) {
switch (btState) {
case BluetoothAdapter.STATE_OFF:
case BluetoothAdapter.STATE_TURNING_OFF: {
proceedAndFinish();
} else {
// Ask the user about enabling discovery mode
createDialog();
}
break;
default:
Log.e(TAG, "Unknown adapter state: " + btState);
} break;
case BluetoothAdapter.STATE_ON:
case BluetoothAdapter.STATE_TURNING_ON: {
Intent intent = new Intent(this, RequestPermissionHelperActivity.class);
intent.setAction(RequestPermissionHelperActivity
.ACTION_INTERNAL_REQUEST_BT_OFF);
startActivityForResult(intent, 0);
} break;
default: {
Log.e(TAG, "Unknown adapter state: " + btState);
cancelAndFinish();
} break;
}
} else {
switch (btState) {
case BluetoothAdapter.STATE_OFF:
case BluetoothAdapter.STATE_TURNING_OFF:
case BluetoothAdapter.STATE_TURNING_ON: {
/*
* Strictly speaking STATE_TURNING_ON belong with STATE_ON;
* however, BT may not be ready when the user clicks yes and we
* would fail to turn on discovery mode. By kicking this to the
* RequestPermissionHelperActivity, this class will handle that
* case via the broadcast receiver.
*/
/*
* Start the helper activity to:
* 1) ask the user about enabling bt AND discovery
* 2) enable BT upon confirmation
*/
Intent intent = new Intent(this, RequestPermissionHelperActivity.class);
intent.setAction(RequestPermissionHelperActivity.ACTION_INTERNAL_REQUEST_BT_ON);
if (mRequest == REQUEST_ENABLE_DISCOVERABLE) {
intent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, mTimeout);
}
startActivityForResult(intent, 0);
} break;
case BluetoothAdapter.STATE_ON: {
if (mRequest == REQUEST_ENABLE) {
// Nothing to do. Already enabled.
proceedAndFinish();
} else {
// Ask the user about enabling discovery mode
createDialog();
}
} break;
default: {
Log.e(TAG, "Unknown adapter state: " + btState);
cancelAndFinish();
} break;
}
}
}
private void createDialog() {
if (getResources().getBoolean(R.bool.auto_confirm_bluetooth_activation_dialog)) {
onClick(null, DialogInterface.BUTTON_POSITIVE);
return;
}
AlertDialog.Builder builder = new AlertDialog.Builder(this);
if (mNeededToEnableBluetooth) {
// RequestPermissionHelperActivity has gotten confirmation from user
// to turn on BT
builder.setMessage(getString(R.string.bluetooth_turning_on));
// Non-null receiver means we are toggling
if (mReceiver != null) {
switch (mRequest) {
case REQUEST_ENABLE:
case REQUEST_ENABLE_DISCOVERABLE: {
builder.setMessage(getString(R.string.bluetooth_turning_on));
} break;
default: {
builder.setMessage(getString(R.string.bluetooth_turning_off));
} break;
}
builder.setCancelable(false);
} else {
// Ask the user whether to turn on discovery mode or not
// For lasting discoverable mode there is a different message
if (mTimeout == BluetoothDiscoverableEnabler.DISCOVERABLE_TIMEOUT_NEVER) {
builder.setMessage(
getString(R.string.bluetooth_ask_lasting_discovery));
builder.setMessage(getString(R.string.bluetooth_ask_lasting_discovery));
} else {
builder.setMessage(
getString(R.string.bluetooth_ask_discovery, mTimeout));
builder.setMessage(getString(R.string.bluetooth_ask_discovery, mTimeout));
}
builder.setPositiveButton(getString(R.string.allow), this);
builder.setNegativeButton(getString(R.string.deny), this);
@@ -174,36 +175,44 @@ public class RequestPermissionActivity extends Activity implements
mDialog = builder.create();
mDialog.show();
if (getResources().getBoolean(R.bool.auto_confirm_bluetooth_activation_dialog) == true) {
// dismiss dialog immediately if settings say so
onClick(null, DialogInterface.BUTTON_POSITIVE);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode != REQUEST_CODE_START_BT) {
Log.e(TAG, "Unexpected onActivityResult " + requestCode + ' ' + resultCode);
setResult(RESULT_CANCELED);
finish();
return;
}
if (resultCode != RESULT_BT_STARTING_OR_STARTED) {
setResult(resultCode);
finish();
if (resultCode != Activity.RESULT_OK) {
cancelAndFinish();
return;
}
// Back from RequestPermissionHelperActivity. User confirmed to enable
// BT and discoverable mode.
mUserConfirmed = true;
switch (mRequest) {
case REQUEST_ENABLE:
case REQUEST_ENABLE_DISCOVERABLE: {
if (mLocalAdapter.getBluetoothState() == BluetoothAdapter.STATE_ON) {
proceedAndFinish();
} else {
// If BT is not up yet, show "Turning on Bluetooth..."
mReceiver = new StateChangeReceiver();
registerReceiver(mReceiver, new IntentFilter(
BluetoothAdapter.ACTION_STATE_CHANGED));
createDialog();
}
} break;
if (mLocalAdapter.getBluetoothState() == BluetoothAdapter.STATE_ON) {
proceedAndFinish();
} else {
// If BT is not up yet, show "Turning on Bluetooth..."
createDialog();
case REQUEST_DISABLE: {
if (mLocalAdapter.getBluetoothState() == BluetoothAdapter.STATE_OFF) {
proceedAndFinish();
} else {
// If BT is not up yet, show "Turning off Bluetooth..."
mReceiver = new StateChangeReceiver();
registerReceiver(mReceiver, new IntentFilter(
BluetoothAdapter.ACTION_STATE_CHANGED));
createDialog();
}
} break;
default: {
cancelAndFinish();
} break;
}
}
@@ -223,8 +232,8 @@ public class RequestPermissionActivity extends Activity implements
private void proceedAndFinish() {
int returnCode;
if (mEnableOnly) {
// BT enabled. Done
if (mRequest == REQUEST_ENABLE || mRequest == REQUEST_DISABLE) {
// BT toggled. Done
returnCode = RESULT_OK;
} else if (mLocalAdapter.setScanMode(
BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE, mTimeout)) {
@@ -252,16 +261,26 @@ public class RequestPermissionActivity extends Activity implements
finish();
}
private void cancelAndFinish() {
setResult(Activity.RESULT_CANCELED);
finish();
}
/**
* Parse the received Intent and initialize mLocalBluetoothAdapter.
* @return true if an error occurred; false otherwise
*/
private boolean parseIntent() {
Intent intent = getIntent();
if (intent != null && intent.getAction().equals(BluetoothAdapter.ACTION_REQUEST_ENABLE)) {
mEnableOnly = true;
} else if (intent != null
&& intent.getAction().equals(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE)) {
if (intent == null) {
return true;
}
if (intent.getAction().equals(BluetoothAdapter.ACTION_REQUEST_ENABLE)) {
mRequest = REQUEST_ENABLE;
} else if (intent.getAction().equals(BluetoothAdapter.ACTION_REQUEST_DISABLE)) {
mRequest = REQUEST_DISABLE;
} else if (intent.getAction().equals(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE)) {
mRequest = REQUEST_ENABLE_DISCOVERABLE;
mTimeout = intent.getIntExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION,
BluetoothDiscoverableEnabler.DEFAULT_DISCOVERABLE_TIMEOUT);
@@ -292,8 +311,9 @@ public class RequestPermissionActivity extends Activity implements
@Override
protected void onDestroy() {
super.onDestroy();
if (mNeededToEnableBluetooth) {
if (mReceiver != null) {
unregisterReceiver(mReceiver);
mReceiver = null;
}
}
@@ -302,4 +322,38 @@ public class RequestPermissionActivity extends Activity implements
setResult(RESULT_CANCELED);
super.onBackPressed();
}
private final class StateChangeReceiver extends BroadcastReceiver {
private static final long TOGGLE_TIMEOUT_MILLIS = 10000; // 10 sec
public StateChangeReceiver() {
getWindow().getDecorView().postDelayed(() -> {
if (!isFinishing() && !isDestroyed()) {
cancelAndFinish();
}
}, TOGGLE_TIMEOUT_MILLIS);
}
public void onReceive(Context context, Intent intent) {
if (intent == null) {
return;
}
final int currentState = intent.getIntExtra(
BluetoothAdapter.EXTRA_STATE, BluetoothDevice.ERROR);
switch (mRequest) {
case REQUEST_ENABLE:
case REQUEST_ENABLE_DISCOVERABLE: {
if (currentState == BluetoothAdapter.STATE_ON) {
proceedAndFinish();
}
} break;
case REQUEST_DISABLE: {
if (currentState == BluetoothAdapter.STATE_OFF) {
proceedAndFinish();
}
} break;
}
}
}
}