5
私は電話が開かれるたびに写真を撮るアプリを作ろうとしています。ユーザーは写真が撮られたことを知るべきではありません。したがって、基本的に盗難防止アプリケーションのように動作するはずです。Androidで写真を撮ることは秘密裏に開けます
ダミーSurfaceTextureを使用する必要があるので、プレビューは画面に表示されませんが、写真をキャプチャすることはできません。
ここまでは私がこれまでに書いたものです。 Cameraオブジェクトとの接触を取得するだけでサンプルの活動です：
package com.brushmate.chameleon;
import java.io.IOException;
import android.graphics.SurfaceTexture;
import android.hardware.Camera;
import android.os.Bundle;
import android.os.SystemClock;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.util.Log;
import android.view.SurfaceView;
public class SettingsActivity extends Activity {
private static final String TAG = "Chameleon Wallpaper";
@SuppressLint("NewApi") protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings);
Log.d(TAG, "Activity created");
Camera cam = getCamera();
if (cam != null) {
Log.d(TAG, "Camera available");
SurfaceTexture dummy = new SurfaceTexture(0);
try {
cam.setPreviewTexture(dummy);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.d(TAG, "Preview texture set");
cam.startPreview();
Log.d(TAG, "Preview started");
cam.takePicture(null, null, new Camera.PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
Log.d(TAG, "Image taken");
}
});
cam.stopPreview();
Log.d(TAG, "Preview stopped");
cam.release();
Log.d(TAG, "Camera released");
}
}
private Camera getCamera() {
Camera cam = null;
try {
cam = Camera.open();
} catch (RuntimeException e) {
Log.e(TAG, "Camera not available", e);
}
return cam;
}
}
そして、ここでは私のLogcat出力です：私の知る限り理解されるように
05-12 23:54:56.947: D/Chameleon Wallpaper(19614): Activity created
05-12 23:54:56.947: I/AwesomePlayer(161): setDataSource_l(URL suppressed)
05-12 23:54:56.977: I/AwesomePlayer(161): setDataSource_l(URL suppressed)
05-12 23:54:57.007: I/CameraClient(161): Opening camera 0
05-12 23:54:57.117: E/mm-camera(175): sensor_load_chromatix: libchromatix_imx111_preview.so: 30
05-12 23:54:57.217: E/mm-camera(175): vfe_ops_init: E
05-12 23:54:57.237: E/mm-camera(175): vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM
05-12 23:54:57.237: E/mm-camera(175): vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM
05-12 23:54:57.247: E/mm-camera(175): mctl_init_stats_proc_info: snap_max_line_cnt =30096
05-12 23:54:57.267: D/Chameleon Wallpaper(19614): Camera available
05-12 23:54:57.267: D/Chameleon Wallpaper(19614): Preview texture set
05-12 23:54:57.267: E/QCameraHWI(161): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*): mPreviewWindow = 0x0x400b9e98, mStreamDisplay = 0x0x4008c378
05-12 23:54:57.267: D/QCameraHWI(161): android::status_t android::QCameraHardwareInterface::startPreview(): start preview now
05-12 23:54:57.267: I/QCameraHWI(161): android::status_t android::QCameraHardwareInterface::startPreview2():Setting ZSL mode
05-12 23:54:57.267: E/mm-camera(175): config_proc_CAMERA_SET_INFORM_STARTPREVIEW
05-12 23:54:57.267: E/mm-camera(175): config_update_stream_info Storing stream parameters for video inst 1 as : width = 640, height 480, format = 1 inst_handle = 810081 cid = 0
05-12 23:54:57.307: E/mm-camera(175): config_update_stream_info Storing stream parameters for video inst 3 as : width = 640, height 480, format = 1 inst_handle = 830083 cid = 0
05-12 23:54:57.307: E/mm-camera(175): config_update_stream_info Storing stream parameters for video inst 4 as : width = 512, height 384, format = 1 inst_handle = 840084 cid = 0
05-12 23:54:57.307: E/mm-camera(175): config_decide_vfe_outputs: Ports Used 3, Op mode 1
05-12 23:54:57.307: E/mm-camera(175): config_decide_vfe_outputs Current mode 0 Full size streaming : Disabled
05-12 23:54:57.307: E/mm-camera(175): config_decide_vfe_outputs: Primary: 640x480, extra_pad: 0x0, Fmt: 1, Type: 1, Path: 1
05-12 23:54:57.307: E/mm-camera(175): config_decide_vfe_outputs: Secondary: 640x480, extra_pad: 0x0, Fmt: 1, Type: 3, Path: 4
05-12 23:54:57.307: E/mm-camera(175): config_update_inst_handles Updated the inst handles as 810081, 830083, 0, 0
05-12 23:54:57.387: W/ActivityManager(592): Activity pause timeout for ActivityRecord{420bd848 u0 com.brushmate.chameleon/.SettingsActivity}
05-12 23:54:57.447: E/mm-camera(175): sensor_load_chromatix: libchromatix_imx111_zsl.so: 26
05-12 23:54:57.537: E/mm-camera(175): camif_client_set_params: camif has associated with obj mask 0x1
05-12 23:54:57.537: E/mm-camera(175): config_v2_CAMERA_START_common CAMIF_PARAMS_ADD_OBJ_ID failed -1
05-12 23:54:57.537: E/mm-camera(175): vfe_operation_config: format 3
05-12 23:54:57.537: E/mm-camera(175): vfe_operation_config:vfe_op_mode=5
05-12 23:54:57.537: E/mm-camera(175): Invalid ASD Set Params Type
05-12 23:54:57.537: E/mm-camera(175): vfe_set_bestshot: Bestshot mode not changed
05-12 23:54:57.567: D/Chameleon Wallpaper(19614): Preview started
05-12 23:54:57.607: E/mm-libcamera2(161): PROFILE HAL: First preview frame received: 1368395697.614272749
05-12 23:54:57.607: E/BufferQueue(19614): [unnamed-19614-0] dequeueBuffer: min undequeued buffer count (2) exceeded (dequeued=6 undequeudCount=0)
05-12 23:54:57.647: E/mm-libcamera2(161): mm_camera_dispatch_buffered_frames: mframe 0x0, sframe = 0x0
05-12 23:54:57.647: E/mm-libcamera2(161): PROFILE HAL: stopPreview(): E: 1368395697.653949232
05-12 23:54:57.647: E/mm-camera(175): config_MSG_ID_STOP_ACK: streamon_mask is not clear. Should not call PP_Release_HW
05-12 23:54:57.667: D/Chameleon Wallpaper(19614): Preview stopped
05-12 23:54:57.667: E/mm-libcamera2(161): PROFILE HAL: stopPreview(): E: 1368395697.676839512
05-12 23:54:57.667: E/QCameraHWI(161): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*):Received Setting NULL preview window
05-12 23:54:57.677: E/QCameraHWI(161): android::status_t android::QCameraHardwareInterface::setPreviewWindow(preview_stream_ops_t*): mPreviewWindow = 0x0x0, mStreamDisplay = 0x0x4008c378
05-12 23:54:57.677: W/QCameraHWI_Preview(161): Setting NULL preview window
05-12 23:54:57.677: I/CameraClient(161): Destroying camera 0
05-12 23:54:57.687: E/mm-camera(175): config_shutdown_pp Camera not in streaming mode. Returning.
05-12 23:54:57.687: E/mm-camera(175): vfe_ops_deinit: E
05-12 23:54:57.758: D/Chameleon Wallpaper(19614): Camera released
05-12 23:54:57.758: W/AudioFlinger(161): session id 77 not found for pid 161
05-12 23:54:57.758: W/AudioFlinger(161): session id 78 not found for pid 161
05-12 23:54:57.808: D/libEGL(19614): loaded /system/lib/egl/libEGL_adreno200.so
05-12 23:54:57.808: D/libEGL(19614): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
05-12 23:54:57.808: D/libEGL(19614): loaded /system/lib/egl/libGLESv2_adreno200.so
05-12 23:54:57.818: I/Adreno200-EGL(19614): <eglInitialize:269>: EGL 1.4 QUALCOMM build: Nondeterministic AU_full_mako_PARTNER-ANDROID/JB-MR1-DEV_CL2961380_release_AU (CL2961380)
05-12 23:54:57.818: I/Adreno200-EGL(19614): Build Date: 12/10/12 Mon
05-12 23:54:57.818: I/Adreno200-EGL(19614): Local Branch:
05-12 23:54:57.818: I/Adreno200-EGL(19614): Remote Branch: m/partner-android/jb-mr1-dev
05-12 23:54:57.818: I/Adreno200-EGL(19614): Local Patches: NONE
05-12 23:54:57.818: I/Adreno200-EGL(19614): Reconstruct Branch: NOTHING
05-12 23:54:57.848: D/OpenGLRenderer(19614): Enabling debug mode 0
05-12 23:54:57.888: I/ActivityManager(592): Displayed com.brushmate.chameleon/.SettingsActivity: +1s63ms
、手順が正しいです。だから私は何が間違っているの？
解決策を共有してくれてありがとう - 私の*問題も解決できました。 –