從相機捕獲圖像並將其顯示在android中的另一個活動中

Question

我正在開發一個應用程序，在該應用程序中我想從相機捕獲圖像並將其顯示在圖像視圖的另一個活動中，我的問題是能夠捕獲圖像，但是捕獲后我被重定向到第一個活動而不是第二個活動。

這是我的代碼PictureOptions.java

public void buttonCameraOpen(View view)
{
    // 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
    startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
}

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), "Easy Heal");
    // 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 {
        return null;
    }

    return mediaFile;
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
     Bitmap selectedphoto   = null;

     super.onActivityResult(requestCode, resultCode, data);

     if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE  && resultCode == RESULT_OK && null!=data) {

            // Image captured and saved to fileUri specified in the Intent
            //selectedphoto = (Bitmap) data.getExtras().get("data");
            Uri selectedImage = data.getData();
             String [] filePathColumn = {MediaStore.Images.Media.DATA};
             Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
             cursor.moveToFirst();   
             int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
             String filePath = cursor.getString(columnIndex);
             File f =new File(filePath);
             String filename = f.getName();
             cursor.close();
             selectedphoto = BitmapFactory.decodeFile(filePath);

             Intent intent = new Intent(PictureOptions.this,ShowImage.class);
             //intent.putExtra("data", selectedphoto);
             intent.setData( selectedImage );
             startActivity(intent);
        } else if (resultCode == RESULT_CANCELED) {
            // User cancelled the image capture
        } else {
            // Image capture failed, advise user
       }

}

PictureOptions.xml

<Button
    android:id="@+id/buttonCameraOpen"
    android:layout_width="fill_parent"
    android:layout_height="72dp"
    android:layout_weight="0.35"
    android:onClick="buttonCameraOpen"
    android:text="@string/button_camera_open" />

ShowImage.java

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_show_image);
    ImageView imageview = (ImageView)findViewById(R.id.ImageShow);
    Uri imageUri = getIntent().getData();
    //Bitmap selectedphoto  =(Bitmap)this.getIntent().getParcelableExtra("data");
    imageview.setImageURI(imageUri);
}

ShowImage.xml

 <ImageView
    android:id="@+id/ImageShow"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" />

Answer 1

我終於找到了一個很棒的解決方案。該庫用於從相機捕獲圖像或從圖庫中選擇圖像，並以onActivityResult方法的File格式返回圖像，該圖像可在應用程序中進一步使用。 采用

EasyImage庫

Answer 2

Uri uriSavedImage=Uri.fromFile(new File("/sdcard/flashCropped.png"));
camera.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
startActivityForResult(camera, 1);

單擊圖像后，檢查其是否存在。 然后將圖像文件的路徑發送到下一個活動，並通過位圖顯示它。

Answer 3

調用相機意圖Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); if (takePictureIntent.resolveActivity(getPackageManager()) != null) { startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE); } Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); if (takePictureIntent.resolveActivity(getPackageManager()) != null) { startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE); }

然后在活動中使用結果

'case REQUEST_IMAGE_CAPTURE:
                       Bundle extras = data.getExtras();
                       Bitmap imageBitmap = (Bitmap) extras.get("data");
                       saveBitmap(imageBitmap); 
                       mimageView1.setImageBitmap(imageBitmap);
                       mIntent.putExtra("ACTIVITY_CODE", 1);
                       startActivity(mIntent);
                       break;

在同一個類中添加此方法

 public void saveBitmap(Bitmap bmp)
    {
        String file_path = Environment.getExternalStorageDirectory().getAbsolutePath() +"/DCIM";
          try
          {
            File dir = new File(file_path);
            if(!dir.exists())
               dir.mkdirs();
            File file = new File(dir, "time");
            cameraUrl=file.getAbsolutePath();
            FileOutputStream fOut = new FileOutputStream(file);
            bmp.compress(Bitmap.CompressFormat.PNG, 100, fOut);
            fOut.flush();
            fOut.close();
          }
          catch (Exception e) {
           Log.e("errr in ","inserting the image at parictular location");
     }
    } 

然后在您想要圖像的其他活動中稱呼它

String valueC = getIntent().getExtras().getString("CAMERA");
         Log.v("imageBitmap", ""+valueC);
         Bitmap yourSelectedImageC = BitmapFactory.decodeFile(valueC);
         mImgV_image.setImageBitmap(yourSelectedImageC);

Answer 4

我花了兩天終於遇到了同樣的問題

1. 第一次活動

    if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK && data != null) { Uri uri = data.getData(); Intent intent= new Intent(this,SecondActivity.class); selfiSrc.putExtra("imgurl", uri ); startActivity(intent); } 

2. SecondActivity

    Imageview iv_photo=(ImageView)findViewById(R.id.iv_photo); Bundle extras= getIntent().getExtras(); if(extras!=null) { path = (Uri) extras.get("imgurl"); iv_photo.setImageURI(path); } 

   2. 用另一種方式查看我的答案Android-如何將ImageView從一個活動轉移到另一個活動？