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私はインテントを使用して撮影/録画を処理するためにデフォルトのカメラアプリを使用しようとしていますが、デフォルトコードが正しく動作するように見えません。 http://developer.android.com/guide/topics/media/camera.htmlカムコーダーのアクティビティがサンプルコードで動作しない
このコードはIce Creamサンドイッチではなく、Gingerbread（2.3）で動作します。ビデオを録画しようとすると、画像/プレビューがフリーズし、ビデオを再撮しようとするとクラッシュします。それはビデオフォーマットをサポートしていますが、それは明示的に文書でそれをサポートしているようにそれはそうスタックトレースから
...
すべてのヘルプや考えをいただければ幸いです。 :)
マイコード：
public class CameraInterface {
public static final int MEDIA_TYPE_IMAGE = 1;
public static final int MEDIA_TYPE_VIDEO = 2;
public static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
public static final int CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE = 200;
private static Uri fileUri;
public static void takePicture(Activity activity){
// create Intent to take a picture and return control to the calling application
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_IMAGE); // create a file to save the image
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
// start the image capture Intent
activity.startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
}
public static void takeVideo(Activity activity){
//create new Intent
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO); // create a file to save the video
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // set the image file name
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video image quality to high
// start the Video Capture Intent
activity.startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE);
}
/** Create a file Uri for saving an image or video */
private static Uri getOutputMediaFileUri(int type){
return Uri.fromFile(getOutputMediaFile(type));
}
/** Create a File for saving an image or video */
private static File getOutputMediaFile(int type){
// To be safe, you should check that the SDCard is mounted
// using Environment.getExternalStorageState() before doing this.
File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES), "MyCameraApp");
// This location works best if you want the created images to be shared
// between applications and persist after your app has been uninstalled.
// Create the storage directory if it does not exist
if (! mediaStorageDir.exists()){
if (! mediaStorageDir.mkdirs()){
Log.d("MyCameraApp", "failed to create directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
File mediaFile;
if (type == MEDIA_TYPE_IMAGE){
mediaFile = new File(mediaStorageDir.getPath() + File.separator +
"IMG_"+ timeStamp + ".jpg");
} else if(type == MEDIA_TYPE_VIDEO) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator +
"VID_"+ timeStamp + ".mp4");
} else {
return null;
}
return mediaFile;
}
}
スタックトレース：
E/videocamera(17373) Couldn't view video file ///mnt/sdcard/Pictures/MyCameraApp/VID_20120410_151830.mp4
E/videocamera(17373) android.content.ActivityNotFoundException No Activity found to handle Intent { act=android.intent.action.VIEW dat=file ///mnt/sdcard/Pictures/MyCameraApp/VID_20120410_151830.mp4 }
E/videocamera(17373) at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java 1409)
E/videocamera(17373) at android.app.Instrumentation.execStartActivity(Instrumentation.java 1379)
E/videocamera(17373) at android.app.Activity.startActivityForResult(Activity.java 2827)
E/videocamera(17373) at android.app.Activity.startActivity(Activity.java 2933)
E/videocamera(17373) at com.android.camera.VideoCamera.startPlayVideoActivity(VideoCamera.java 488)
E/videocamera(17373) at com.android.camera.VideoCamera.onClick(VideoCamera.java 501)
E/videocamera(17373) at android.view.View.performClick(View.java 2485)
E/videocamera(17373) at android.view.View$PerformClick.run(View.java 9080)
E/videocamera(17373) at android.os.Handler.handleCallback(Handler.java 587)
E/videocamera(17373) at android.os.Handler.dispatchMessage(Handler.java 92)
E/videocamera(17373) at android.os.Looper.loop(Looper.java 130)
E/videocamera(17373) at android.app.ActivityThread.main(ActivityThread.java 3683)
E/videocamera(17373) at java.lang.reflect.Method.invokeNative(Native Method)
E/videocamera(17373) at java.lang.reflect.Method.invoke(Method.java 507)
E/videocamera(17373) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java 839)
E/videocamera(17373) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java 597)
E/videocamera(17373) at dalvik.system.NativeStart.main(Native Method)
W/dalvikvm(17373) threadid=1 thread exiting with uncaught exception (group=0x40015560)
E/AndroidRuntime(17373) FATAL EXCEPTION main
E/AndroidRuntime(17373) java.lang.IllegalArgumentException Unknown URL file ///mnt/sdcard/Pictures/MyCameraApp/VID_20120410_151830.mp4
E/AndroidRuntime(17373) at android.content.ContentResolver.delete(ContentResolver.java 688)
E/AndroidRuntime(17373) at com.android.camera.VideoCamera.deleteCurrentVideo(VideoCamera.java 1090)
E/AndroidRuntime(17373) at com.android.camera.VideoCamera.onClick(VideoCamera.java 497)
E/AndroidRuntime(17373) at android.view.View.performClick(View.java 2485)
E/AndroidRuntime(17373) at android.view.View$PerformClick.run(View.java 9080)
E/AndroidRuntime(17373) at android.os.Handler.handleCallback(Handler.java 587)
E/AndroidRuntime(17373) at android.os.Handler.dispatchMessage(Handler.java 92)
E/AndroidRuntime(17373) at android.os.Looper.loop(Looper.java 130)
E/AndroidRuntime(17373) at android.app.ActivityThread.main(ActivityThread.java 3683)
E/AndroidRuntime(17373) at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(17373) at java.lang.reflect.Method.invoke(Method.java 507)
E/AndroidRuntime(17373) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java 839)
E/AndroidRuntime(17373) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java 597)
E/AndroidRuntime(17373) at dalvik.system.NativeStart.main(Native Method)