ImageView不會在片段中插入相機圖片

Question

我站在一個大問題面前，我已經問過很多人，但沒有人能幫助我。

在標題中，我製作了一個帶有三個片段的Android應用程序。 在一個片段中，我想打開一個攝像頭，當點擊一個空的ImageView時。 拍攝照片後，ImageView應顯示來自相機的拍攝圖像。

該應用程序打開相機，也需要一張照片，但不會將圖片插入到ImageView中。

此代碼是在我的片段

public class FragmentNew extends Fragment {

public static final int CAMERA_PIC_REQUEST_1 = 1; 
public static final int CAMERA_PIC_REQUEST_2 = 2; 
public static final int SELECT_PIC_REQUEST_1 = 3; 
public static final int SELECT_PIC_REQUEST_2 = 4; 

ImageView imageView1; 
ImageView imageView2; 
View rootView; 


@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) { 

    final View rootView = inflater.inflate(R.layout.fragment_new,container, false); 
    imageView1 = (ImageView) rootView.findViewById(R.id.image_pic1); 
    imageView2 = (ImageView) rootView.findViewById(R.id.image_pic2); 

    return rootView; 
} 


public void check(int requestCode, int resultCode, Intent data,ImageView imv1,ImageView imv2) { 

    Log.d("Name", "onActivityResult"); 
    switch(requestCode){ 
     case CAMERA_PIC_REQUEST_1: 
      if(resultCode== Activity.RESULT_OK && data != null && data.getExtras().get("data")!=null){ 
        Log.d("TAG1","Photo pic1"); 
        Bitmap photo = (Bitmap) data.getExtras().get("data");      
        imv1.setImageBitmap(photo); 
        Log.d("TAG1","Photo pic1 was set"); 

      } 
      break; 

     case CAMERA_PIC_REQUEST_2: 
      if(resultCode== Activity.RESULT_OK && data != null && data.getExtras().get("data")!=null){ 
        Log.d("TAG2","Photo pic2"); 
        Bitmap photo2 = (Bitmap) data.getExtras().get("data"); 
        //imv2.setImageBitmap(photo2); 
        imv2.setBackgroundColor(Color.rgb(255, 0, 255)); 
        Log.d("TAG2","Photo pic2 was set"); 
      } 
      break; 

      default: 
       Log.d("Error","It doesn't work"); 
    } 
} 

}

MainActivity：

public void onButtonClick(View view) 
{ 
    switch(view.getId()) 
    { 
    case R.id.image_accept: 
     EditText text; 
     text = (EditText)findViewById(R.id.edit_title); 
     Toast.makeText(this,"Decision "+ text.getText().toString()+" was created!",Toast.LENGTH_SHORT).show(); 
     break; 
    case R.id.image_pic1: 
     Builder builderpic1 = new Builder(this); 
     builderpic1.setTitle("Pick a Pic") 
       .setIcon(android.R.drawable.ic_dialog_info) 
       .setItems(R.array.selection, new OnClickListener() { 

       @Override 
       public void onClick(DialogInterface dialog, int which) { 
        switch(which) 
        { 
        case 0: 
         //Intent galeryintent = new Intent(Intent.ACTION_VIEW, Uri.parse(
         //  "content://media/internal/images/media")); 
         //  startActivity(galeryintent); 

         //Intent intent = new Intent(); 
         //intent.setType("image/*"); 
         //intent.setAction(Intent.ACTION_GET_CONTENT); 
         //startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PIC_REQUEST_1); 

         Intent intent = new Intent(); 
         intent.setType("image/*"); 
         intent.setAction(Intent.ACTION_GET_CONTENT); 
         //startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PIC_REQUEST_1); 
         startActivityForResult(intent, FragmentNew.SELECT_PIC_REQUEST_1);   
         break; 
        case 1: 
         Intent photointent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
         startActivityForResult(photointent, FragmentNew.CAMERA_PIC_REQUEST_1); 

         break; 
        case 2:  
         Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://images.google.com/")); 
         startActivity(browserIntent); 
         break; 
        } 

        dialog.dismiss(); 

       } 
      }) 
       .show(); 
     break; 
    case R.id.image_pic2: 
     Builder builderpic2 = new Builder(this); 
     builderpic2.setTitle("Pick a Pic") 
       .setIcon(android.R.drawable.ic_dialog_info) 
       .setItems(R.array.selection, new OnClickListener() { 

       @Override 
       public void onClick(DialogInterface dialog, int which) { 
        switch(which) 
        { 
        case 0: 
         Intent galeryintent = new Intent(Intent.ACTION_VIEW, Uri.parse(
           "content://media/internal/images/media")); 
           startActivity(galeryintent); 
         break; 
        case 1: 
         Intent photointent2 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
         startActivityForResult(photointent2, FragmentNew.CAMERA_PIC_REQUEST_2); 
         break; 
        case 2:  
         Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://images.google.com/")); 
         startActivity(browserIntent); 
         break; 
        } 

        dialog.dismiss(); 

       } 
      }) 
       .show(); 
     break; 
    } 
} 


protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    Fragment myFragment = (Fragment) getSupportFragmentManager().findFragmentById(R.id.fragment_new); 

    ImageView imv1= (ImageView)findViewById(R.id.image_pic1); 
    ImageView imv2= (ImageView)findViewById(R.id.image_pic2); 

    ((FragmentNew)myFragment).check(requestCode, resultCode, data,imv1,imv2); 
} 

的BACKGROUNDCOLOR正好被設置以檢查問題是位圖，但BackgroundColor不ch ange也是如此，所以我認爲問題在於片段在onActivityResult（）中找不到ImageView。 Log.d顯示在控制檯中，但ImageView保持空白。

我希望你能幫助我。

Answer 1

對不起，但我找不到你的onActivityResult方法，並設置ImageView OnclickListener。也許他們在你的活動課上。 除了ImageView參數外，您的檢查方法看起來很像onActivityResult方法。你自己打電話給你的檢查方法嗎？並在你的onActivityResult？

也許你已經做了這樣的事情，然後我就不知道什麼是錯在你的代碼：

@Override 
public void onActivityResult(int requestCode, int resultCode, Intent data){ 
    mFragment.check(requestCode, resultCode, data, mImageView1, mImageView2); 
} 

其實，如果你不介意節省設備上的圖片，你也可以做是這樣的：

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE); 
intent.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(outputFile)); 
startActivityForResult(intent,CAMERA_PIC_REQUEST_1); 

而在你的onActivityResult：

Bitmap bm = BitmapFactory.decodeFile(outputFile.getPath()); 
mImageView1.setImageBitmap(bm); 

但我認爲你的方式也應該工作，我從來沒有嘗試過。

請問您可以添加更多代碼，以便我們可以看到您在哪裏調用startActivityForResult和onActivityResult方法？