我知道这个问题已被多次询问，但没有一个答案解决了我的问题。在我的应用程序中，我使用的服务在背景中没有预览拍照。我的应用程序适用于大多数Android手机，如三星Galaxy S2，三星Grand，但当我在Sony Experia M 4.1.2和三星Galaxy Core Duos 4.1.2上测试时，它会在myCamera.takePicture中抛出运行时异常。
我已经关注了stackoverflow上的许多链接，但无法找到解决方案：
这是我的代码：
@Override
public void onCreate() {
super.onCreate();
Camera cameraInstance = null;
try{
cameraInstance= Camera.open();
if(cameraInstance != null){
cameraInstance.lock();
SurfaceView dummy = new SurfaceView(this);
cameraInstance.setPreviewDisplay(dummy.getHolder());
cameraInstance.startPreview();
cameraInstance.takePicture(null, null, jpeg);
}else{
Log.e("MyCamera", "Could not open camera");
}
}catch(Throwable t){
Log.e("MyCamera", t.getMessage());
if(cameraInstance!=null){
cameraInstance.stopPreview();
cameraInstance.unlock();
cameraInstance.release();
cameraInstance = null;
}
}finally{
stopSelf();
}
}
PictureCallback jpeg = new PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
FileOutputStream fos = null;
try {
camera.stopPreview();
camera.unlock();
camera.release();
camera = null;
File file = AndroidAppUtil.getClientFile(String.valueOf(new Date().getTime()));
fos = new FileOutputStream(file);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inPurgeable = true;
options.inTempStorage = new byte[32 * 1024];
Bitmap bMap = BitmapFactory.decodeByteArray(data, 0, data.length, options);
Matrix matrix = new Matrix();
matrix.postRotate(90);
Bitmap bMapRotate = Bitmap.createBitmap(bMap, 0, 0, bMap.getWidth(), bMap.getHeight(), matrix, false);
bMapRotate.compress(Bitmap.CompressFormat.JPEG, 95, fos);
bMap.recycle();
bMapRotate.recycle();
} catch (Throwable t) {
System.gc();
} finally {
if (fos != null){
try {
fos.close();
} catch (IOException e) {
}
}
}
}
};
堆栈跟踪：
04-21 12:38:28.321: D/QualcommCamera(285): Qint android::preview_enabled(camera_device*): E
04-21 12:38:28.321: D/QCameraHWI(285): int android::QCameraHardwareInterface::previewEnabled(): mCameraState = 1
04-21 12:38:28.321: D/QCameraHWI(285): setPreviewWindow: E mPreviewState = 0, mStreamDisplay = 0x40a8e828
04-21 12:38:28.321: D/QCameraHWI(285): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*):Received Setting NULL preview window
04-21 12:38:28.321: D/QCameraHWI(285): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*): mPreviewWindow = 0x0x0, mStreamDisplay = 0x0x40a8e828
04-21 12:38:28.321: E/QCameraHWI_Preview(285): setPreviewWindow: E
04-21 12:38:28.321: W/QCameraHWI_Preview(285): Setting NULL preview window
04-21 12:38:28.321: D/QCameraHWI(285): setPreviewWindow : X, mPreviewState = 0
04-21 12:38:28.321: D/QualcommCamera(285): Qint android::start_preview(camera_device*): E
04-21 12:38:28.331: D/QCameraHWI(285): android::status_t android::QCameraHardwareInterface::startPreview(): mPreviewState =0
04-21 12:38:28.331: D/QCameraHWI(285): android::status_t android::QCameraHardwareInterface::startPreview(): HAL::startPreview begin
04-21 12:38:28.331: D/QCameraHWI(285): android::status_t android::QCameraHardwareInterface::startPreview(): received startPreview, but preview window = null
04-21 12:38:28.331: D/QualcommCamera(285): Qint android::start_preview(camera_device*): X
04-21 12:38:30.373: D/QualcommCamera(285): Qvoid android::disable_msg_type(camera_device*, int32_t): E
04-21 12:38:30.373: D/QCameraHWI(285): disableMsgType: X, msgType =0x400, mMsgEnabled=0xd
04-21 12:38:30.373: D/QCameraHWI(285): enableMsgType: X, msgType =0x100, mMsgEnabled=0x10d
04-21 12:38:30.373: D/QualcommCamera(285): Qchar* android::get_parameters(camera_device*): E
04-21 12:38:30.373: D/QualcommCamera(285): Qchar* android::get_parameters(camera_device*): X[1]
04-21 12:38:30.373: D/QualcommCamera(285): Qvoid android::put_parameters(camera_device*, char*): E
04-21 12:38:30.384: D/QualcommCamera(285): Qint android::take_picture(camera_device*): E
04-21 12:38:30.384: D/QCameraHWI_Still(285): virtual void android::QCameraStream_Snapshot::resetSnapshotCounters(): Number of images to be captured: 1
04-21 12:38:30.384: E/QCameraHWI_Still(285): virtual void android::QCameraStream_Snapshot::InitHdrInfoForSnapshot(bool, int, int*): number_frames=1
04-21 12:38:30.914: W/SignalStrength(629): getLTELevel - rsrp:2147483647 snr:2147483647 rsrpIconLevel:-1 snrIconLevel:-1
04-21 12:38:30.914: W/SignalStrength(823): getLTELevel - rsrp:2147483647 snr:2147483647 rsrpIconLevel:-1 snrIconLevel:-1
04-21 12:38:30.914: W/SignalStrength(823): getLTELevel - rssi:99 rssiIconLevel:0
04-21 12:38:30.914: W/SignalStrength(823): getTdScdmaLevel = 0
04-21 12:38:30.924: W/SignalStrength(823): getGsmLevel=4
04-21 12:38:30.924: W/SignalStrength(823): getLevel=4
04-21 12:38:30.924: W/SignalStrength(823): getLTELevel - rsrp:2147483647 snr:2147483647 rsrpIconLevel:-1 snrIconLevel:-1
04-21 12:38:30.924: W/SignalStrength(629): getLTELevel - rssi:99 rssiIconLevel:0
04-21 12:38:30.924: W/SignalStrength(823): getLTELevel - rssi:99 rssiIconLevel:0
04-21 12:38:30.924: W/SignalStrength(629): getTdScdmaLevel = 0
04-21 12:38:30.924: W/SignalStrength(823): getTdScdmaLevel = 0
04-21 12:38:30.924: W/SignalStrength(629): getGsmLevel=4
04-21 12:38:30.924: W/SignalStrength(629): getLevel=4
04-21 12:38:30.924: W/SignalStrength(823): getGsmLevel=4
04-21 12:38:30.924: D/StatusBar.NetworkController(823): onSignalStrengthsChanged signalStrength=SignalStrength: 14 0 -120 -160 -120 -1 -1 99 2147483647 2147483647 2147483647 2147483647 2147483647 gsm|lte level=4
04-21 12:38:30.934: W/SignalStrength(823): getLevel=4
04-21 12:38:30.934: W/SignalStrength(823): getLTELevel - rsrp:2147483647 snr:2147483647 rsrpIconLevel:-1 snrIconLevel:-1
04-21 12:38:30.934: W/SignalStrength(823): getLTELevel - rssi:99 rssiIconLevel:0
04-21 12:38:30.934: W/SignalStrength(823): getTdScdmaLevel = 0
04-21 12:38:30.934: W/SignalStrength(823): getGsmLevel=4
04-21 12:38:30.934: W/SignalStrength(823): getLevel=4
04-21 12:38:30.934: D/StatusBar.NetworkController(823): refreshViews connected={ data } level=4 combinedSignalIconId=0x7f0200a7/com.android.systemui:drawable/stat_sys_signal_4_fully combinedActivityIconId=0x7f0200a8 mobileLabel=airtel wifiLabel= emergencyOnly=false combinedLabel=airtel mAirplaneMode=false mDataActivity=0 mPhoneSignalIconId=0x7f0200a7 mDataDirectionIconId=0x7f020084 mDataSignalIconId=0x7f0200a7 mDataTypeIconId=0x7f020076 mNoSimIconId=0x0 mWifiIconId=0x0 mBluetoothTetherIconId=0x108076a
04-21 12:38:40.144: D/PowerManagerService(629): [PMS] updateLightsLocked: newState = 1/ forceState = 0
04-21 12:38:40.144: D/PowerManagerService(629): [PMS] nominalCurrentValue=145 brightness=20 steps=77
04-21 12:38:47.161: D/PowerManagerService(629): [PMS] updateLightsLocked: newState = 0/ forceState = 0
04-21 12:38:47.161: D/PowerManagerService(629): [PMS] nominalCurrentValue=20 brightness=0 steps=12
04-21 12:38:47.342: I/AlarmManager(629): trigger Alarm{432ca750 type 0 com.appbell.pml.user.ui} [type=0 when=(2014-04-21 12:38:47) repeatInt=30000 PendingIntent{42d95b90: PendingIntentRecord{432cca18 com.appbell.pml.user.ui startService}}]
04-21 12:38:47.662: I/VibratorService(629): service.runit.start: 0
04-21 12:38:47.682: I/NotificationService(629): [FXN.ASD]nms:mInCall = false / mScreenOn = false / mLedNotification = null
04-21 12:38:47.682: I/NotificationService(629): [FXN.ASD]nms:turn off LED
04-21 12:38:47.692: D/AudioHardwareALSA(285): setParameters() screen_state=off
04-21 12:38:47.692: V/AudioHardwareALSA(285): __start set mic
04-21 12:38:47.692: V/AudioHardwareALSA(285): __start set hac parameters
04-21 12:38:47.762: D/AccelerometerListener(888): enable(false)
04-21 12:38:47.772: D/NfcService(904): NFC-C OFF, disconnect
04-21 12:38:47.772: D/NFC_LIST(904): Allocated node: 0x5dd92420 (0x60833c5c)
04-21 12:38:47.782: I/PhoneLedService(888): mPhoneLedReceiver onReceive(): android.intent.action.SCREEN_OFF
04-21 12:38:47.782: D/NFCJNI(904): ****** Stop NFC Discovery ******
04-21 12:38:47.802: D/NFCJNI(904): phLibNfc_Mgt_ConfigureDiscovery(-----, CE-0-493e0) returned 0x0000000d
04-21 12:38:47.822: D/NFCJNI(904): Callback: nfc_jni_discover_callback() - status=0x0000[NFCSTATUS_SUCCESS]
04-21 12:38:47.822: D/NFC_LIST(904): Deallocating node: 0x5dd92420 (0x60833c5c)
04-21 12:38:47.822: V/SuperStamina-XssmReminder(629): onScreenOn: false
04-21 12:38:47.822: V/SuperStamina-XssmReminder(629): ... state: xssmOn=false plugged=true off=0
04-21 12:38:47.872: D/YouTube MDX(6902): Recieved intent android.intent.action.SCREEN_OFF
04-21 12:38:48.092: W/ActivityManager(629): Activity pause timeout for ActivityRecord{42925e38 com.appbell.pml.user.ui/com.appbell.and.common.util.CustomAlertDialog}
04-21 12:38:49.274: I/AlarmManager(629): trigger Alarm{434208d8 type 2 com.google.android.gms} [type=2 when=(2014-04-21 12:38:49) repeatInt=0 PendingIntent{43321f48: PendingIntentRecord{42b756b0 com.google.android.gms broadcastIntent}}]
04-21 12:38:51.686: I/BatteryService(629): start UEvent update, event = {SUBSYSTEM=power_supply, DEVPATH=/devices/platform/msm_ssbi.0/pm8038-core/pm8921-charger/power_supply/battery, POWER_SUPPLY_HEALTH=Good, POWER_SUPPLY_STATUS=Charging, POWER_SUPPLY_TECHNOLOGY=Li-ion, POWER_SUPPLY_ENERGY_FULL=1743000, POWER_SUPPLY_VOLTAGE_MIN_DESIGN=3200000, POWER_SUPPLY_TEMP=374, POWER_SUPPLY_PRESENT=1, POWER_SUPPLY_NAME=battery, POWER_SUPPLY_CHARGE_NOW=-33712, POWER_SUPPLY_CURRENT_MAX=3381843, POWER_SUPPLY_CAPACITY=87, POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4200000, SEQNUM=26702, POWER_SUPPLY_CURRENT_NOW=-457700, POWER_SUPPLY_VOLTAGE_NOW=4092957, ACTION=change, POWER_SUPPLY_CHARGE_TYPE=Fast}
04-21 12:38:52.577: I/AlarmManager(629): trigger Alarm{43611128 type 2 android} [type=2 when=(2014-04-21 12:38:52) repeatInt=0 PendingIntent{43756cc8: PendingIntentRecord{43616a60 android broadcastIntent}}]
04-21 12:38:52.597: W/ActivityManager(629): Sleep timeout! Sleeping now.
04-21 12:38:52.968: D/-heap(4337): GC_CONCURRENT freed 2869K, 46% free 9291K/17027K, paused 16ms+8ms, total 150ms
04-21 12:38:55.701: I/BatteryService(629): start UEvent update, event = {SUBSYSTEM=power_supply, DEVPATH=/devices/platform/msm_ssbi.0/pm8038-core/pm8921-charger/power_supply/battery, POWER_SUPPLY_HEALTH=Good, POWER_SUPPLY_STATUS=Charging, POWER_SUPPLY_TECHNOLOGY=Li-ion, POWER_SUPPLY_ENERGY_FULL=1743000, POWER_SUPPLY_VOLTAGE_MIN_DESIGN=3200000, POWER_SUPPLY_TEMP=374, POWER_SUPPLY_PRESENT=1, POWER_SUPPLY_NAME=battery, POWER_SUPPLY_CHARGE_NOW=-34218, POWER_SUPPLY_CURRENT_MAX=3381843, POWER_SUPPLY_CAPACITY=88, POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4200000, SEQNUM=26703, POWER_SUPPLY_CURRENT_NOW=-460600, POWER_SUPPLY_VOLTAGE_NOW=4094421, ACTION=change, POWER_SUPPLY_CHARGE_TYPE=Fast}
04-21 12:38:55.731: V/SuperStamina-XssmReminder(629): onBatteryChanged: plugged=true
04-21 12:38:55.731: V/SuperStamina-PowerSaveReminder(629): onBatteryChanged: level=88 plugged=true
04-21 12:38:55.731: V/SuperStamina-PowerSaveReminder(629): ... state: enabled=false mPlugged=true mUnpluggedTime=0 mUnpluggedLevel=0
04-21 12:38:58.103: W/ActivityManager(629): Activity stop timeout for ActivityRecord{42a7d8e0 com.appbell.pml.user.ui/com.appbell.and.pml.ca.app.ui.DashboardActivity}
04-21 12:38:58.103: W/ActivityManager(629): Activity stop timeout for ActivityRecord{42925e38 com.appbell.pml.user.ui/com.appbell.and.common.util.CustomAlertDialog}
04-21 12:39:09.806: I/AlarmManager(629): trigger Alarm{429b7c28 type 2 com.google.android.gms} [type=2 when=(2014-04-21 12:39:09) repeatInt=0 PendingIntent{429edb18: PendingIntentRecord{429d5300 com.google.android.gms broadcastIntent}}]
04-21 12:39:09.826: D/StateMachine(629): handleMessage: E msg.what=131084
04-21 12:39:09.826: D/StateMachine(629): processMsg: DriverUnloadedState
04-21 12:39:09.826: D/WifiStateMachine(629): DriverUnloadedState{ what=131084 when=-2ms }
04-21 12:39:09.826: D/StateMachine(629): processMsg: DefaultState
04-21 12:39:09.826: D/WifiStateMachine(629): DefaultState{ what=131084 when=-4ms }
04-21 12:39:09.836: D/StateMachine(629): handleMessage: X
04-21 12:39:09.836: D/StateMachine(629): handleMessage: E msg.what=131074
04-21 12:39:09.836: D/StateMachine(629): processMsg: DriverUnloadedState
04-21 12:39:09.836: D/WifiStateMachine(629): DriverUnloadedState{ what=131074 when=-9ms arg1=1 }
04-21 12:39:09.836: D/StateMachine(629): processMsg: DefaultState
04-21 12:39:09.836: D/WifiStateMachine(629): DefaultState{ what=131074 when=-11ms arg1=1 }
04-21 12:39:09.836: D/StateMachine(629): handleMessage: X
04-21 12:39:09.876: D/StateMachine(629): handleMessage: E msg.what=131084
04-21 12:39:09.876: D/StateMachine(629): processMsg: DriverUnloadedState
04-21 12:39:09.876: D/WifiStateMachine(629): DriverUnloadedState{ what=131084 when=-2ms }
04-21 12:39:09.876: D/StateMachine(629): processMsg: DefaultState
04-21 12:39:09.876: D/WifiStateMachine(629): DefaultState{ what=131084 when=-5ms }
04-21 12:39:09.876: D/StateMachine(629): handleMessage: X
04-21 12:39:09.876: D/StateMachine(629): handleMessage: E msg.what=131074
04-21 12:39:09.886: D/StateMachine(629): processMsg: DriverUnloadedState
04-21 12:39:09.886: D/WifiStateMachine(629): DriverUnloadedState{ what=131074 when=-10ms arg1=1 }
04-21 12:39:09.886: D/StateMachine(629): processMsg: DefaultState
04-21 12:39:09.886: D/WifiStateMachine(629): DefaultState{ what=131074 when=-13ms arg1=1 }
04-21 12:39:09.886: D/StateMachine(629): handleMessage: X
04-21 12:39:14.150: E/MyCamera(7591): takePicture failed
04-21 12:39:15.081: D/QualcommCamera(285): Qvoid android::disable_msg_type(camera_device*, int32_t): E
04-21 12:39:15.081: D/QCameraHWI(285): disableMsgType: X, msgType =0x400, mMsgEnabled=0x10d
04-21 12:39:15.081: D/QualcommCamera(285): Qvoid android::disable_msg_type(camera_device*, int32_t): E
04-21 12:39:15.081: D/QCameraHWI(285): disableMsgType: X, msgType =0x10, mMsgEnabled=0x10d
04-21 12:39:15.081: D/QualcommCamera(285): Qvoid android::disable_msg_type(camera_device*, int32_t): E
04-21 12:39:15.081: D/QCameraHWI(285): disableMsgType: X, msgType =0x3c2, mMsgEnabled=0xd
04-21 12:39:15.081: D/QualcommCamera(285): Qvoid android::stop_preview(camera_device*): E
04-21 12:39:15.081: D/QCameraHWI(285): void android::QCameraHardwareInterface::stopPreview(): stopPreview: E
04-21 12:39:15.081: E/mm-libcamera2(285): PROFILE HAL: stopPreview(): E: 1398064155.095584038
04-21 12:39:15.091: D/QCameraHWI(285): stopPreview: X, mPreviewState = 0
04-21 12:39:15.462: D/QualcommCamera(285): Qint android::recording_enabled(camera_device*): E
04-21 12:39:15.672: W/CameraService(285): attempt to use a locked camera from a different process (old pid 0, new pid 7591)
04-21 12:39:15.672: W/CameraService(285): attempt to use a locked camera from a different process (old pid 0, new pid 7591)
04-21 12:39:15.672: W/CameraService(285): different client - don't disconnect
04-21 12:39:17.344: I/AlarmManager(629): trigger Alarm{432ca750 type 0 com.appbell.pml.user.ui} [type=0 when=(2014-04-21 12:39:17) repeatInt=30000 PendingIntent{42d95b90: PendingIntentRecord{432cca18 com.appbell.pml.user.ui startService}}]
04-21 12:39:17.394: W/ActivityManager(629): Timeout executing service: ServiceRecord{436caf28 com.appbell.pml.user.ui/com.appbell.and.pml.ca.app.service.LocationCaptureMonitorService}
04-21 12:39:18.154: I/AlarmManager(629): trigger Alarm{42a95700 type 2 com.google.android.gms} [type=2 when=(2014-04-21 12:39:17) repeatInt=0 PendingIntent{42af8fc8: PendingIntentRecord{42b1ca58 com.google.android.gms broadcastIntent}}]
04-21 12:39:18.154: I/AlarmManager(629): trigger Alarm{43439cc8 type 2 com.google.android.gsf} [type=2 when=(1970-01-01 05:30:00) repeatInt=0 PendingIntent{42aeabc8: PendingIntentRecord{43133218 com.google.android.gsf broadcastIntent}}]
04-21 12:39:18.695: D/-heap(629): GC_CONCURRENT freed 2742K, 36% free 17516K/27143K, paused 14ms+11ms, total 128ms
04-21 12:39:18.705: D/dalvikvm(629): WAIT_FOR_CONCURRENT_GC blocked 89ms
04-21 12:39:18.905: D/dalvikvm(629): WAIT_FOR_CONCURRENT_GC blocked 0ms
04-21 12:39:19.045: D/-heap(629): GC_EXPLICIT freed 875K, 35% free 17700K/27143K, paused 6ms+11ms, total 134ms
04-21 12:39:19.606: E/ActivityManager(629): ANR in com.appbell.pml.user.ui
04-21 12:39:19.606: E/ActivityManager(629): Reason: Executing service com.appbell.pml.user.ui/com.appbell.and.pml.ca.app.service.LocationCaptureMonitorService
04-21 12:39:19.606: E/ActivityManager(629): Load: 2.39 / 9.61 / 8.39
04-21 12:39:19.606: E/ActivityManager(629): CPU usage from 12396ms to 2577ms ago:
04-21 12:39:19.606: E/ActivityManager(629): 0.9% 629/system_server: 0.3% user + 0.6% kernel / faults: 43 minor
04-21 12:39:19.606: E/ActivityManager(629): 0.1% 372/adbd: 0% user + 0.1% kernel
04-21 12:39:19.606: E/ActivityManager(629): 0.2% 3160/mpdecision: 0% user + 0.2% kernel
04-21 12:39:19.606: E/ActivityManager(629): 0.2% 4337/com.google.process.location: 0.1% user + 0.1% kernel / faults: 2 minor
04-21 12:39:19.606: E/ActivityManager(629): 0% 281/rild: 0% user + 0% kernel / faults: 2 minor
04-21 12:39:19.606: E/ActivityManager(629): 0.1% 4807/com.sonymobile.playanywhere: 0% user + 0.1% kernel
04-21 12:39:19.606: E/ActivityManager(629): 0% 5144/kworker/0:0: 0% user + 0% kernel
04-21 12:39:19.606: E/ActivityManager(629): 0% 7185/logcat: 0% user + 0% kernel
04-21 12:39:19.606: E/ActivityManager(629): 1.6% TOTAL: 0.5% user + 1.1% kernel
04-21 12:39:19.606: E/ActivityManager(629): CPU usage from 1653ms to 2180ms later:
04-21 12:39:19.606: E/ActivityManager(629): 3.7% 629/system_server: 0% user + 3.7% kernel
04-21 12:39:19.606: E/ActivityManager(629): 5.6% 683/ActivityManager: 0% user + 5.6% kernel
04-21 12:39:19.606: E/ActivityManager(629): 2.5% TOTAL: 0% user + 2.5% kernel
04-21 12:39:19.616: D/ActivityManager(629): reading /data/anr/traces_com.appbell.pml.user.ui.txt
04-21 12:39:20.687: D/QualcommCamera(285): Qvoid android::disable_msg_type(camera_device*, int32_t): E
04-21 12:39:20.687: D/QCameraHWI(285): disableMsgType: X, msgType =0xffff, mMsgEnabled=0x0
04-21 12:39:20.687: D/QualcommCamera(285): Qvoid android::stop_preview(camera_device*): E
04-21 12:39:20.687: D/QCameraHWI(285): void android::QCameraHardwareInterface::stopPreview(): stopPreview: E
04-21 12:39:20.687: E/mm-libcamera2(285): PROFILE HAL: stopPreview(): E: 1398064160.698422433
04-21 12:39:20.687: D/QCameraHWI(285): stopPreview: X, mPreviewState = 0
04-21 12:39:20.687: D/QualcommCamera(285): Qint android::cancel_picture(camera_device*): E
04-21 12:39:20.687: D/QCameraHWI(285): cancelPicture: E
04-21 12:39:20.687: D/QCameraHWI(285): cancelPicture: X
04-21 12:39:20.687: D/QualcommCamera(285): Qvoid android::release(camera_device*): E
04-21 12:39:20.687: D/QCameraHWI(285): release: E
04-21 12:39:20.687: D/QCameraHWI(285): release: X
04-21 12:39:20.687: D/QualcommCamera(285): Qint android::close_camera_device(hw_device_t*): device =0x4224edd8 E
04-21 12:39:20.687: D/QCameraHWI(285): ~QCameraHardwareInterface: E
04-21 12:39:20.687: E/QCameraHWI_Preview(285): virtual void android::QCameraStream_preview::release() : BEGIN
04-21 12:39:20.687: E/QCameraHWI_Preview(285): Debug : virtual void android::QCameraStream_preview::release() : De init Channel
04-21 12:39:20.687: E/mm-libcamera2(285): mm_camera_ch_util_reg_buf_cb: Trying to register
04-21 12:39:20.687: E/mm-libcamera2(285): mm_camera_ch_util_reg_buf_cb: Done register
04-21 12:39:20.687: E/QCameraHWI_Preview(285): virtual void android::QCameraStream_preview::release(): END
04-21 12:39:20.687: E/mm-libcamera2(285): mm_camera_ch_util_reg_buf_cb: Trying to register
04-21 12:39:20.687: E/mm-libcamera2(285): mm_camera_ch_util_reg_buf_cb: Done register
04-21 12:39:20.687: V/QCameraHWI_Still(285): virtual void android::QCameraStream_Snapshot::release(): E
04-21 12:39:20.687: V/QCameraHWI_Still(285): virtual void android::QCameraStream_Snapshot::release(): X
04-21 12:39:20.697: V/QCameraHWI_Still(285): virtual android::QCameraStream_Snapshot::~QCameraStream_Snapshot(): E
04-21 12:39:20.697: I/mm-still-omx(285): omxJpegClose:
04-21 12:39:20.697: V/QCameraHWI_Still(285): virtual android::QCameraStream_Snapshot::~QCameraStream_Snapshot(): X
04-21 12:39:20.697: E/mm-camera(300): config_shutdown_pp Camera not in streaming mode. Returning.
04-21 12:39:20.697: E/mm-camera(300): mctl_release: set_params (SENSOR_SET_STOP_STREAM)
04-21 12:39:20.697: E/mm-camera(300): vfe_ops_deinit: E
04-21 12:39:20.707: D/QCameraHWI(285): ~QCameraHardwareInterface: X
04-21 12:39:20.707: D/QualcommCamera(285): Qint android::close_camera_device(hw_device_t*): X : camera_count =0
答案 0 :(得分：2)
最后，我通过添加SurfaceTexture和setPreviewTexture来解决了这个问题....
注意：
在4.0以下版本中使用虚拟SurfaceView
在版本＆gt; = 4.0中使用SurfaceTexture（和setSurfaceTexture（））而不是SurfaceView。