Android-ImageView赢得'；不显示用相机拍摄的照片
请容忍我。。。我已经四处寻找了天一段工作的、基本的代码，该代码启动相机活动，拍摄一张照片，并将其放在一个简单的ImageView><下面发布的代码启动活动并拍摄照片，但是图像没有显示在ImageView上缺少什么？：'( 我在三星安卓的一些设备上也遇到了同样的问题，然后我实现了逻辑来获取拍摄照片的路径 尝试添加Android-ImageView赢得'；不显示用相机拍摄的照片,android,camera,imageview,Android,Camera,Imageview,请容忍我。。。我已经四处寻找了天一段工作的、基本的代码，该代码启动相机活动，拍摄一张照片，并将其放在一个简单的ImageView>
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
if (requestCode == PICK_IMAGE)
（当然更好的做法是使用MediaScanner）尝试并测试了Galaxy S3手机。感谢TGMCians的帮助
public class MainActivity extends Activity
{
private static final int PICK_IMAGE = 0;
private static final int PICK_IMAGE_FROM_GALLERY = 1;
private Button mBtnCamera, mBtnGallery, mBtnCancel;
private ImageView mImageView;
private Uri mURI;
private String mPhotoPath;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mImageView = (ImageView) findViewById(R.id.imgDisplayImage);
mBtnCamera = (Button) findViewById(R.id.btnPhotoCamera);
mBtnGallery = (Button) findViewById(R.id.btnPhotoGallery);
mBtnCancel = (Button) findViewById(R.id.btnCancel);
mBtnCamera.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
Intent camera = new Intent();
camera.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
camera.putExtra("crop", "true");
File f = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
mURI = Uri.fromFile(new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "myFile.jpg"));
camera.putExtra(MediaStore.EXTRA_OUTPUT, mURI);
startActivityForResult(camera, PICK_IMAGE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (resultCode == Activity.RESULT_OK)
{
if (requestCode == PICK_IMAGE)
{
Cursor cursor = getContentResolver().query(
Media.EXTERNAL_CONTENT_URI, new String[]
{
Media.DATA,
Media.DATE_ADDED,
MediaStore.Images.ImageColumns.ORIENTATION
},
Media.DATE_ADDED,
null,
"date_added ASC"
);
if (cursor != null && cursor.moveToFirst())
{
do
{
mURI = Uri.parse(cursor.getString(cursor.getColumnIndex(Media.DATA)));
mPhotoPath = mURI.toString();
}
while (cursor.moveToNext());
cursor.close();
}
if (data != null)
{
if (data.hasExtra("data"))
{
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
mImageView.setImageBitmap(thumbnail);
}
else
{
System.out.println("Intent bundle does not have the 'data' Extra");
int width = mImageView.getWidth();
int height = mImageView.getHeight();
BitmapFactory.Options factoryOptions = new BitmapFactory.Options();
factoryOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(/*mURI.getPath()*/ mPhotoPath, factoryOptions);
int imageWidth = factoryOptions.outWidth;
int imageHeight = factoryOptions.outHeight;
// Determine how much to scale down the image
int scaleFactor = Math.min(
imageWidth/width,
imageHeight/height
);
// Decode the image file into a Bitmap sized to fill view
factoryOptions.inJustDecodeBounds = false;
factoryOptions.inSampleSize = scaleFactor;
factoryOptions.inPurgeable = true;
Bitmap bitmap = BitmapFactory.decodeFile(/*mURI.getPath()*/ mPhotoPath, factoryOptions);
mImageView.setImageBitmap(bitmap);
}
}
}
}
else
{
System.out.println("Picture taking activity NOT returning RESULT_OK");
}
}
}
尝试在if条件下提供位图照片=（位图）数据。getExtras（）.get（“数据”）；而不是位图缩略图=数据。getParcelableExtra（“数据”）；尝试了，不起作用：（我添加了你的建议，但仍然不起作用，即使合并了你的建议：（我现在将编辑主线程以显示整个代码的外观，太长了，无法将所有内容粘贴到此处。此外，我不是在虚拟机上测试，而是在Galaxy S3手机上测试。我在三星也遇到了同样的问题。请在onActivityResult中发布我的代码，然后您将获得位图的路径。我刚刚完成了。也许我又在某个地方出了问题。请注意r look？：）@Emiliano De Santis请查看我的答案，如果您有任何问题，请告诉我，但请小心执行。
if (requestCode == PICK_IMAGE)
public class MainActivity extends Activity
{
private static final int PICK_IMAGE = 0;
private static final int PICK_IMAGE_FROM_GALLERY = 1;
private Button mBtnCamera, mBtnGallery, mBtnCancel;
private ImageView mImageView;
private Uri mURI;
private String mPhotoPath;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mImageView = (ImageView) findViewById(R.id.imgDisplayImage);
mBtnCamera = (Button) findViewById(R.id.btnPhotoCamera);
mBtnGallery = (Button) findViewById(R.id.btnPhotoGallery);
mBtnCancel = (Button) findViewById(R.id.btnCancel);
mBtnCamera.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
Intent camera = new Intent();
camera.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
camera.putExtra("crop", "true");
File f = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
mURI = Uri.fromFile(new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "myFile.jpg"));
camera.putExtra(MediaStore.EXTRA_OUTPUT, mURI);
startActivityForResult(camera, PICK_IMAGE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (resultCode == Activity.RESULT_OK)
{
if (requestCode == PICK_IMAGE)
{
Cursor cursor = getContentResolver().query(
Media.EXTERNAL_CONTENT_URI, new String[]
{
Media.DATA,
Media.DATE_ADDED,
MediaStore.Images.ImageColumns.ORIENTATION
},
Media.DATE_ADDED,
null,
"date_added ASC"
);
if (cursor != null && cursor.moveToFirst())
{
do
{
mURI = Uri.parse(cursor.getString(cursor.getColumnIndex(Media.DATA)));
mPhotoPath = mURI.toString();
}
while (cursor.moveToNext());
cursor.close();
}
if (data != null)
{
if (data.hasExtra("data"))
{
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
mImageView.setImageBitmap(thumbnail);
}
else
{
System.out.println("Intent bundle does not have the 'data' Extra");
int width = mImageView.getWidth();
int height = mImageView.getHeight();
BitmapFactory.Options factoryOptions = new BitmapFactory.Options();
factoryOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(/*mURI.getPath()*/ mPhotoPath, factoryOptions);
int imageWidth = factoryOptions.outWidth;
int imageHeight = factoryOptions.outHeight;
// Determine how much to scale down the image
int scaleFactor = Math.min(
imageWidth/width,
imageHeight/height
);
// Decode the image file into a Bitmap sized to fill view
factoryOptions.inJustDecodeBounds = false;
factoryOptions.inSampleSize = scaleFactor;
factoryOptions.inPurgeable = true;
Bitmap bitmap = BitmapFactory.decodeFile(/*mURI.getPath()*/ mPhotoPath, factoryOptions);
mImageView.setImageBitmap(bitmap);
}
}
}
}
else
{
System.out.println("Picture taking activity NOT returning RESULT_OK");
}
}
}