建立一個相機應用程序 - 接收

Question

我是新來的Android編程，我正在用Java編寫一個應用程序，打開相機拍照並保存。我通過意向，但我看不到onActivityResult正在運行。

我已將其測試到我的手機（Samsung Galaxy S）中，當我拍照時，我會收到該照片的預覽，其中有兩個按鈕一個保存，另一個取消。我沒有添加一些東西給我的代碼來做到這一點，所以我認爲這是相機所做的事情。我想在捕獲圖像後運行onActivityResult（在按下預覽上的保存按鈕之後）。

但是，在預覽按下按鈕保存後，我將如何返回結果以開始onActivityResult？

我忘了說，我按保存後，我的整個應用程序終止。 這裏是我的代碼

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    TakePicButton = (Button) findViewById(R.id.TakePicture); 
    TakePicButton.setOnClickListener((android.view.View.OnClickListener) this); 

} 

@Override 
public void onDestroy(){ 
    super.onDestroy(); 
} 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) { 
     if (resultCode == RESULT_OK) { 
      // Image captured and saved to fileUri specified in the Intent 
      Toast.makeText(this, "Image saved to:\n" + data.getData(), Toast.LENGTH_LONG).show(); 

     } else if (resultCode == RESULT_CANCELED) { 
      Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT); 

     } else { 
      Toast.makeText(this, "Picture was not taken", Toast.LENGTH_SHORT); 

     } 
    } 

public void onClick(View v) { 
// TODO Auto-generated method stub 
if(v.getId() == R.id.TakePicture){ 

    // 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); 
} 
} 

Answer 1

嘗試下面的代碼，你將不得不修改了一下，它會幫助你從圖書館和從相機都，在SELECT_PICTURE用於從庫中獲取圖像

public void onActivityResult(int requestCode, int resultCode, Intent data) { 
    switch (requestCode) { 
    case SELECT_PICTURE: 
      Uri selectedImageUri = data.getData(); 
      filemanagerstring = selectedImageUri.getPath(); 
      selectedImagePath = getPath(selectedImageUri); 
      if (selectedImagePath != null) 
       myFile = new File(selectedImagePath); 
      else if (filemanagerstring != null) 
       myFile = new File(filemanagerstring); 
      if (myFile != null) { 
       Bitmap bmp_fromGallery = decodeImageFile(selectedImagePath); 


     break; 
    case CAMERA_REQUEST: 

      Bitmap bmp_Camera = (Bitmap) data.getExtras().get("data"); 

     break; 
    default: 
     break; 
    } 
}