Question

我正在创建一个应用程序，用于发送从相机应用程序中拍摄的照片，但是它返回的图像似乎只是一个缩略图，我怎样才能让它转动整个图像？

以下代码获取图片，但它太小了。

public class OnTheJobActivity extends Activity{

 private static final int CAMERA_PIC_REQUEST = 1337;
 private Button takePictureButton;
 private Button sendPictureButton;
 private Bitmap thumbnail; 

 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  this.setRequestedOrientation(
          ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
  setContentView(R.layout.onthejob);
  takePictureButton = (Button) findViewById(R.id.takePictureButton);
  takePictureButton.setOnClickListener(takePictureButtonListener);
  sendPictureButton = (Button) findViewById(R.id.sendPictureButton);
  sendPictureButton.setOnClickListener(sendPictureButtonListener);


 }

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
     if (requestCode == CAMERA_PIC_REQUEST) {  
  thumbnail = (Bitmap) data.getExtras().get("data");  
  ImageView image = (ImageView) findViewById(R.id.photoResultView);  
  image.setImageBitmap(thumbnail);
  sendPictureButton.setVisibility(Button.VISIBLE);
     }  
 }  


 private OnClickListener takePictureButtonListener = new OnClickListener() {

  @Override
  public void onClick(View arg0){
      Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
      startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);  

  }
     };

     private OnClickListener sendPictureButtonListener = new OnClickListener() {

  @Override
  public void onClick(View arg0){

      Intent i = new Intent(Intent.ACTION_SEND);
      i.putExtra(Intent.EXTRA_EMAIL, "abc@gmail.com");
      i.putExtra(Intent.EXTRA_SUBJECT,"On The Job");
      i.putExtra(Intent.EXTRA_STREAM, thumbnail);
      i.setType("image/bmp");
      startActivity(Intent.createChooser(i,"Emailfile"));

  }
     };


}

Answer 1

你也可以改变你正在使用的意图。

//in your buttonListener
ContentValues values = new ContentValues();
imageUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
//create new Intent
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
i.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

try{
    startActivityForResult(i, ACTIVITY_GET_IMAGE);
}
catch(Exception ex){
    Log.v("BRE", ex.toString());
}
//in your activity
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    if(requestCode == ACTIVITY_GET_IMAGE){
        if(resultCode == RESULT_OK){
            try{String uri = data.getData().toString()}
            catch(NullPointerException e){//do something}
        }
    }
}

这将返回一个uri，然后您可以使用它来访问全分辨率图像

Answer 2

尝试使用here

显示的实现

具体做法是：

Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() {

    public void onPictureTaken(byte[] imageData, Camera c) {

    }

};

在Android中使用Camera应用程序时，如何返回整个图像而不仅仅是缩略图？

2 个答案: