我不能用ActivityForResult返回previous活动 [英] I cannot return the previous activity with using ActivityForResult

问题描述

我有这些codeS。打开相机，拍摄照片，但是当我点击确定按钮，什么都没有发生。只有这样，才能回到previous活动点击X按钮，这不是我:)有用。有什么问题？ （方法的onActivityResult尚未完成）。（我以前用这种算法是 Android.provider.MediaStore.ACTION_IM​​AGE_CAPTURE 的意图。有一切就OK了。我不知道为什么我现在有问题。）

 公共无效的onClick（视图v）{            意图getCameraImage =新意图（android.media.action.IMAGE_CAPTURE）;
            db.open（）;
            光标CR = db.getAllRecords（）;
            诠释计数= cr.getCount（）;            db.close（）;            文件cameraFolder;            如果（android.os.Environment.getExternalStorageState（）。等于（android.os.Environment.MEDIA_MOUNTED））
                cameraFolder =新的文件（android.os.Environment.getExternalStorageDirectory（），TSFC）;
            其他
                cameraFolder = ShowMessagesPage.this.getCacheDir（）;
            如果（！cameraFolder.exists（））
                cameraFolder.mkdirs（）;            文件照片=新的文件（Environment.getExternalStorageDirectory（），TSFC /+（计数+ 1）+.JPG）;
            getCameraImage.putExtra（MediaStore.EXTRA_OUTPUT，Uri.fromFile（照片））;            initialURI = Uri.fromFile（照片）;            startActivityForResult（getCameraImage，CAMERA_RESULT）;
        }}）;}保护无效的onActivityResult（INT申请code，INT结果code，
          意向意向）{
        super.onActivityResult（要求code，结果code，意向）;        如果（结果code == RESULT_OK）{
            捆绑额外= intent.getExtras（）;
            照片=（URI）extras.get（数据）;
        }
      }
 

解决方案

确定，它众所周知的Bug，

刚刚加入这个code线， photo.createNewFile（）;

喜欢的东西，

 文件照片=新的文件（Environment.getExternalStorageDirectory（），TSFC /+（计数+ 1）+.JPG）;
photo.createNewFile（）;
getCameraImage.putExtra（MediaStore.EXTRA_OUTPUT，Uri.fromFile（照片））;
 

另外不要忘了，

 ＆LT;使用许可权的android：NAME =android.permission.WRITE_EXTERNAL_STORAG​​E/＆GT;
 

让我知道你的进度。

I have these codes. Camera opened, the picture is taken, but when I click on "ok" button, nothing happened. The only way to get back to previous activity is clicking the "x" button which is not useful for me :). What is the problem? (onActivityResult method is not finished yet.) (I used to use this algorithm with Android.provider.MediaStore.ACTION_IMAGE_CAPTURE intent. there was everything OK. I have no idea why I have problem now.)

public void onClick(View v) {

            Intent getCameraImage = new Intent("android.media.action.IMAGE_CAPTURE");
            db.open();
            Cursor cr = db.getAllRecords();
            int count = cr.getCount();

            db.close();

            File cameraFolder;

            if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
                cameraFolder = new File(android.os.Environment.getExternalStorageDirectory(),"TSFC");
            else
                cameraFolder= ShowMessagesPage.this.getCacheDir();
            if(!cameraFolder.exists())
                cameraFolder.mkdirs();

            File photo = new File(Environment.getExternalStorageDirectory(), "TSFC/" + (count + 1) + ".jpg");
            getCameraImage.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo));

            initialURI = Uri.fromFile(photo);

            startActivityForResult(getCameraImage, CAMERA_RESULT);
        }});}

protected void onActivityResult(int requestCode, int resultCode,
          Intent intent) {
        super.onActivityResult(requestCode, resultCode, intent);

        if (resultCode == RESULT_OK) {
            Bundle extras = intent.getExtras();
            photo = (Uri) extras.get("data");


        }
      }

解决方案

Ok, Its well known Bug,

Just Add this code line, photo.createNewFile();

Something like,

File photo = new File(Environment.getExternalStorageDirectory(), "TSFC/" + (count + 1) + ".jpg");
photo.createNewFile();
getCameraImage.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo));

Also don't forget to,

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

And let me know your progress.

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