我正在使用意图录制视频。
所以我在recordVideo按钮的点击上使用以下代码
Videofilepath = "";
Intent intent = new Intent(android.provider.MediaStore.ACTION_VIDEO_CAPTURE);
startActivityForResult(intent,REQUEST_VIDEO_CAPTURED);
并在 onActivityResult
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
switch (requestCode) {
case IMAGE_PICK:
this.imageFromGallery(resultCode, data);
break;
case IMAGE_CAPTURE:
this.imageFromCamera(resultCode, data);
break;
case REQUEST_VIDEO_CAPTURED:
this.videoFromCamera(resultCode, data);
break;
default:
break;
}
}
}
private void videoFromCamera(int resultCode, Intent data) {
uriVideo = data.getData();
uploadedFileName="";
Constant.IS_FILE_ATTACH = true;
Toast.makeText(PDFActivity.this, uriVideo.getPath(), Toast.LENGTH_LONG)
.show();
String[] filePathColumn = { MediaStore.Video.Media.DATA };
Cursor cursor = getContentResolver().query(uriVideo, filePathColumn,
null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String filePath = cursor.getString(columnIndex);
Videofilepath = filePath;
System.out.println("Videofilepath filepath from camera : "
+ Videofilepath);
cursor.close();
File f = new File(filePath);
System.out.println("file created ? : " + f.exists());
Bitmap bMap = null;
do {
try {
// Simulate network access.
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
} while (!f.exists());
bMap = ThumbnailUtils.createVideoThumbnail(filePath,
MediaStore.Video.Thumbnails.MICRO_KIND);
do {
try {
// Simulate network access.
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
} while (bMap == null);
imageOrVideo = "video";
attachmentvalue.setImageBitmap(bMap);
}
此代码适用于三星 Galaxy Tab。但不适用于 Nexus 7。可能是 Nexus 7 有前置摄像头。但我得到的结果数据意图是 null onActivityResult。
所以在我的 Logcat 中,我得到了以下异常:-
08-08 12:51:31.160: E/AndroidRuntime(10899): FATAL EXCEPTION: main
08-08 12:51:31.160: E/AndroidRuntime(10899): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=200, result=-1, data=Intent { }} to activity {com.example.activity/com.example.PDFActivity}: java.lang.NullPointerException