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亲爱的世界安卓开发者。

请帮我解决android相机API问题。

我想通过android相机拍照并将其设置为ImageButton的图像。如果有媒体存储，请将图像保存到特殊路径。

问题如下。

它适用于一些 android 设备，如 ZTE 2.2、Samsung Galaxy 2.3.3 和三星平板电脑 4.0.3 等。

但它不适用于其他一些设备，例如 2.3.4 LG Droid。

我的意思是捕获的图像未设置为图像按钮。

（2.3.4 LG Droid 的详细设备信息为：Hw 版本：Rev .1.1，Sw 版本：ms910zbc，Build number 姜饼）

这是我的代码。

String mPhotoPath;
ImageButton mPhotoButton;

mPhotoButton.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        String storageState = Environment.getExternalStorageState();
        if (storageState.equals(Environment.MEDIA_MOUNTED)) {
            File photoFile = new File(mPhotoPath);
            try {
                if (!photoFile.exists()) {
                    photoFile.getParentFile().mkdirs();
                    photoFile.createNewFile(); 
                    photoFile.setWritable(true, false);
                } 
            } catch (IOException e) {

            }

            Uri fileUri = Uri.fromFile(photoFile);
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
            startActivityForResult(intent, TAKE_PICTURE);
        }else {
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(intent, TAKE_PICTURE);
        }
    }
});



protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode != RESULT_OK) {
        return;
    }
    switch (requestCode) {
        case TAKE_PICTURE: {
            if (data != null) { //ZTE 2.2 device
                try {
                    Bundle extras = data.getExtras();
                    if (extras != null)
                    {
                        fPhoto = extras.getParcelable("data");
                        mPhotoButton.setImageBitmap(fPhoto);
                    }                       
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } 
            else //Samsung 2.3.3 device
            {
                try {
                     FileInputStream stream = new FileInputStream(new File(mPhotoPath));
                     fPhoto = BitmapFactory.decodeStream(stream);
                     stream.close();
                     mPhotoButton.setImageBitmap(fPhoto);
                }catch (Exception e) {
                     e.printStackTrace();
                }
            }
            break;
       }
    }
}

我感谢您的所有帮助。

谢谢。

真挚地。

4

1 回答 1

0 
public class Camera extends Activity 
  {
 private static final int CAMERA_REQUEST = 1888;
 private String selectedImagePath;
 ImageButton mPhotoButton;

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    mPhotoButton=(Button)findElementById(R.id.imgbtn1);
    mPhotoButton.setOnClickListener(new OnClickListener()
   {
        @Override
        public void onClick(View v) 
        {
            Intent cameraIntent = new Intent(ACTION_IMAGE_CAPTURE);
            startActivityForResult(cameraIntent, CAMERA_REQUEST);
        }
   }
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
    if (resultCode == RESULT_OK) {
        if (requestCode == CAMERA_REQUEST) 
        { 
            Bitmap photo = (Bitmap) data.getExtras().get("data"); 
            ByteArrayOutputStream bytes = new ByteArrayOutputStream();
            photo.compress(Bitmap.CompressFormat.JPEG, 40, bytes);
            Random randomGenerator = new Random();randomGenerator.nextInt();
            String newimagename=randomGenerator.toString()+".jpg";
            File f = new File(Environment.getExternalStorageDirectory()
                                    + File.separator + newimagename);
            try {
                f.createNewFile();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            //write the bytes in file

            try {
                fo = new FileOutputStream(f.getAbsoluteFile());
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            try {
                fo.write(bytes.toByteArray());
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
                uri=f.getAbsolutePath(); 
                mPhotoButton.setImageResource(uri);
    //this is the url that where you are saved the image
      }



  }

试试上面的代码...

于 2012-07-11T03:46:56.707 回答