5
Ho cercato di creare un'applicazione per fotocamera per Android, ma quando provo a scattare la foto, si blocca e devo forzare la chiusura. Il LogCat è:
Android takePicture non riuscito
07-14 12:41:25.195: D/dalvikvm(13549): GC_EXPLICIT freed 51K, 49% free 2694K/5187K, external 3474K/4422K, paused 26ms
07-14 12:41:25.195: D/AndroidRuntime(13549): Shutting down VM
07-14 12:41:25.195: W/dalvikvm(13549): threadid=1: thread exiting with uncaught exception (group=0x4001e560)
07-14 12:41:25.226: E/AndroidRuntime(13549): FATAL EXCEPTION: main
07-14 12:41:25.226: E/AndroidRuntime(13549): java.lang.RuntimeException: takePicture failed
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.hardware.Camera.native_takePicture(Native Method)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.hardware.Camera.takePicture(Camera.java:829)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.hardware.Camera.takePicture(Camera.java:793)
07-14 12:41:25.226: E/AndroidRuntime(13549): at com.mvitsor.camerax.cameraMainActivity.takepic(cameraMainActivity.java:53)
07-14 12:41:25.226: E/AndroidRuntime(13549): at com.mvitsor.camerax.cameraMainActivity$5.onClick(cameraMainActivity.java:44)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.view.View.performClick(View.java:2485)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.view.View$PerformClick.run(View.java:9089)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.os.Handler.handleCallback(Handler.java:587)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.os.Handler.dispatchMessage(Handler.java:92)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.os.Looper.loop(Looper.java:130)
07-14 12:41:25.226: E/AndroidRuntime(13549): at android.app.ActivityThread.main(ActivityThread.java:3859)
07-14 12:41:25.226: E/AndroidRuntime(13549): at java.lang.reflect.Method.invokeNative(Native Method)
07-14 12:41:25.226: E/AndroidRuntime(13549): at java.lang.reflect.Method.invoke(Method.java:507)
07-14 12:41:25.226: E/AndroidRuntime(13549): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:840)
07-14 12:41:25.226: E/AndroidRuntime(13549): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:598)
07-14 12:41:25.226: E/AndroidRuntime(13549): at dalvik.system.NativeStart.main(Native Method)
Ed ecco il codice:
package com.mvitsor.camerax;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.os.Bundle;
import android.util.Log;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;
public class cameraMainActivity extends Activity {
/** Called when the activity is first created. */
Camera camera;
SurfaceView preview;
SurfaceHolder previewHolder;
ImageButton takePic;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
setContentView(R.layout.main_camera_layout);
preview = (SurfaceView) findViewById(R.id.SVpreview);
previewHolder = preview.getHolder();
previewHolder.addCallback(surfaceCallback);
previewHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
takePic = (ImageButton) findViewById(R.id.btn_take_pic);
takePic.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
takepic();
}
});
}
public void takepic(){
camera.stopPreview();
System.gc();
camera.takePicture(null, null, photoCallback);
//camera.takePicture(ShutterCallback, rawCallback, photoCallback);
}
private Camera.Size getBestPreviewSize(int width, int height,
Camera.Parameters parameters) {
Camera.Size result = null;
for (Camera.Size size : parameters.getSupportedPreviewSizes()) {
if (size.width <= width && size.height <= height) {
if (result == null) {
result = size;
} else {
int resultArea = result.width * result.height;
int newArea = size.width * size.height;
if (newArea > resultArea) {
result = size;
}
}
}
}
return (result);
}
SurfaceHolder.Callback surfaceCallback = new SurfaceHolder.Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
camera = Camera.open();
try {
camera.setPreviewDisplay(previewHolder);
} catch (Throwable t) {
Toast toast = Toast.makeText(cameraMainActivity.this,
"Exception in setPreviewDisplay", Toast.LENGTH_LONG);
toast.show();
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
Camera.Parameters parameters = camera.getParameters();
Camera.Size bestSize = getBestPreviewSize(width, height, parameters);
parameters.setPreviewSize(bestSize.width, bestSize.height);
parameters.setPictureFormat(PixelFormat.JPEG);
camera.setParameters(parameters);
camera.startPreview();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
camera.stopPreview();
camera.release();
camera = null;
}
};
/*
Camera.ShutterCallback ShutterCallback = new Camera.ShutterCallback() {
public void onShutter() {
}
};
PictureCallback rawCallback = new PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
}
};
*/
Camera.PictureCallback photoCallback = new Camera.PictureCallback() {
public void onPictureTaken(byte[] data, Camera camera) {
// Save the image JPEG data to the SD card
FileOutputStream outStream = null;
try {
outStream = new FileOutputStream("/sdcard/test.jpg");
outStream.write(data);
outStream.close();
} catch (FileNotFoundException e) {
Log.d("CAMERA", e.getMessage());
} catch (IOException e) {
Log.d("CAMERA", e.getMessage());
}
camera.startPreview();
/*new SavePhotoTask().execute(data);
camera.startPreview();*/
}
};
}
Ho provato sia camera.takePicture(null, null, photoCallback); e camera.takePicture(ShutterCallback, rawCallback, photoCallback);, come si può vedere, e ho anche letto da qualche parte che System.gc(); potrebbe funzionare, ma non è stato così. Inoltre, ho letto che un problema comune era dimenticare di riavviare l'anteprima dopo aver scattato la foto, ma dopo questo mi chiamo camera.startPreview();, quindi davvero non so cosa sta succedendo!
Sono in esecuzione Android 2.3.3 (Motorola Razr). (sembra che molte persone abbiano problemi con la fotocamera su Android 2.3.3 ...).
Sarei davvero grato se qualcuno potesse aiutare!
Vitor Martes Sternlicht
Ho caricato IL PROGETTO PER TUTTA http://www.4shared.com/rar/meSWrQPm/CameraTest.html
ho scaricato un app che ha mostrato questo registro ... Forse c'è qualcosa qui che potrebbe aiutare: sembra il problema si è verificato durante la creazione della directory dei file. Come posso risolvere questo?
07-15 12:43:36.578 27203 27487 W ActivityManager: Force finishing activity com.mvitsor.camerax/.cameraMainActivity
07-15 12:43:36.601 27203 27221 W ApplicationContext: Unable to create files directory
Ecco la completa Log
07-15 13:09:08.226 27203 27582 W ActivityManager: Force finishing activity com.mvitsor.camerax/.cameraMainActivity
07-15 12:43:36.601 27203 27221 W ApplicationContext: Unable to create files directory
07-15 13:09:08.414 27203 27221 I ActivityManager: Config changed: { scale=1.0 imsi=724/10 loc=pt_BR touch=3 keys=1/1/2 nav=1/1 orien=1 layout=268435490 uiMode=17 seq=139}
07-15 13:09:08.726 27203 27219 W ActivityManager: Activity pause timeout for HistoryRecord{40562350 com.mvitsor.camerax/.cameraMainActivity}
07-15 13:09:09.132 27203 27219 I ActivityManager: No longer want android.process.media (pid 11091): hidden #21
07-15 13:09:09.515 27203 27488 I WindowManager: WIN DEATH: Window{40d859a8 com.mvitsor.camerax/com.mvitsor.camerax.cameraMainActivity paused=false}
07-15 13:09:09.515 27203 27499 I ActivityManager: Process com.mvitsor.camerax (pid 11848) has died.
07-15 13:09:09.515 27203 27426 I WindowManager: WIN DEATH: Window{40ef8c70 SurfaceView paused=false}
07-15 13:09:09.539 27203 27210 I MotOverlay: disable_streaming_locked
07-15 13:09:09.539 27203 27210 I MotOverlay: Destroying overlay/fd=300/obj=4650c000
07-15 13:09:09.539 27498 24620 D IMirrorIpc: onTransact (2)
07-15 13:09:09.539 27498 24620 D MirrorIpc: unregisterCallback: client 0
07-15 13:09:09.539 27498 24620 D MirrorUCMgrIpcCB: ipcInit - Client already exists
07-15 13:09:09.539 27498 24620 D MirrorEngine: hdmiMirrorActiveOverlay/0
07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:714 processHalMsg - Display thread received DISPLAY_EXIT command from Camera HAL.
07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:715 processHalMsg - Stopping display thread...
07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:735 processHalMsg - +Signalling display semaphore
07-15 13:09:09.539 27174 11890 D OverlayDisplayAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OverlayDisplayAdapter.cpp:740 processHalMsg - -Signalling display semaphore
07-15 13:09:09.539 27174 27672 E CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:1517 stop - AppCallbackNotifier already in stopped state
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:161 notificationThread - Notification Thread received message from Camera HAL
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:848 processMessage - +Msg get...
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:850 processMessage - -Msg get...
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:869 processMessage - Received NOTIFIER_EXIT command from Camera HAL
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:880 processMessage - +Signalling semaphore from CameraHAL..
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:883 processMessage - -Signalling semaphore from CameraHAL..
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:165 notificationThread - Notification Thread exiting.
07-15 13:09:09.539 27174 11876 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:190 notificationThread - Notification Thread exited.
07-15 13:09:09.539 27174 27672 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:938 ~AppCallbackNotifier - Stopping Event Provider
07-15 13:09:09.539 27174 27672 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/AppCallbackNotifier.cpp:946 ~AppCallbackNotifier - Stopping Frame Provider
07-15 13:09:09.539 27174 27672 D CameraHal: hardware/ti/omap4/omap3/camera-omap4/src/BaseCameraAdapter.cpp:476 sendCommand - Set time out
07-15 13:09:09.539 27174 27672 D OMXCameraAdapter:
07-15 13:09:09.539 27174 27672 D OMXCameraAdapter:
07-15 13:09:09.539 27174 27672 D OMXCameraAdapter: **** ~OMXCameraAdapter called() ! ****
07-15 13:09:09.539 27174 27672 D OMXCameraAdapter:
07-15 13:09:09.585 27174 27672 E DOMX_RPC: Closing IPC
07-15 13:09:09.585 27174 11875 D OMXCameraAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OMXCameraAdapter/OMXCameraAdapter.cpp:9462 Handler - msg.command = -1
07-15 13:09:09.585 27174 11875 E OMXCameraAdapter: hardware/ti/omap4/omap3/camera-omap4/src/OMXCameraAdapter/OMXCameraAdapter.cpp:9476 Handler - Exiting command handler
07-15 13:09:09.585 27174 27672 D OMXCameraAdapter:
07-15 13:09:09.585 27174 27672 D OMXCameraAdapter:
07-15 13:09:09.585 27174 27672 D OMXCameraAdapter: **** ~OMXCameraAdapter exiting ! ****
07-15 13:09:09.585 27174 27672 D OMXCameraAdapter:
07-15 13:09:09.601 27174 27672 D CameraHal:
07-15 13:09:09.601 27174 27672 D CameraHal:
07-15 13:09:09.601 27174 27672 D CameraHal: **** ~CameraHal() ****
07-15 13:09:09.601 27174 27672 D CameraHal:
07-15 13:09:09.601 27174 27672 D CameraHal:
07-15 13:09:11.523 27203 27552 I ActivityManager: Starting: Intent { act=android.intent.action.MAIN flg=0x10500000 cmp=de.softxperience.android.nedebug/.LogcatActivity } from pid 27542
A che punto si verifica esattamente l'eccezione? Sei in grado di avviare la fotocamera? – Taha
Posso avviare la fotocamera e vedere l'anteprima, ma è un errore quando faccio clic sul pulsante per scattare la foto ... – mvitsor