我在simpleWindow类中使用此代码打开视频选择器。
ImageView btnselect = (ImageView) view.findViewById(R.id.imageView2);
btnselect.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
StandOutExampleActivity.a.startActivity(Intent.createChooser(intent, "Play Video"));
}
});
这个simpleWindow不会扩展活动类。那么如何在这个类中使用'onActivityResult'呢?
这是我的onActivityResult方法,但是当我在课堂上使用它时,我收到了错误。
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.e("requestCode",""+requestCode);
if (requestCode == 1) {
Uri selectedImageUri = data.getData();
imagepath= getRealPathFromURI(selectedImageUri);
Toast.makeText(a, imagepath, Toast.LENGTH_LONG).show();
}
}
那么我怎样才能在课堂上选择文件路径?
答案 0 :(得分:1)
public class MainScreen extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_screen);
SelectVedio = (ImageButton) findViewById(R.id.btnSelectVedio);
SelectVedio.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent mediaChooser = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI);
// comma-separated MIME types
mediaChooser.setType("video/*");
startActivityForResult(mediaChooser, RESULT_LOAD_VEDIO);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
// Uri targetUri = data.getData();
String path;
path = getRealPathFromURI(data.getData());
}
}
你的问题对我来说是不可理解的。但是如果你遇到问题那么请记住2分
答案 1 :(得分:0)
这可能对您有所帮助,因为它与您的疑问有些相关:
How to get path of a captured image in android
final private int PICK_IMAGE = 1;
final private int CAPTURE_IMAGE = 2;
private String imgPath;
btnGallery.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, ""), PICK_IMAGE);
}
});
btnCapture.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, setImageUri());
startActivityForResult(intent, CAPTURE_IMAGE);
}
});
public Uri setImageUri() {
// Store image in dcim
File file = new File(Environment.getExternalStorageDirectory() + "/DCIM/", "image" + new Date().getTime() + ".png");
Uri imgUri = Uri.fromFile(file);
this.imgPath = file.getAbsolutePath();
return imgUri;
}
public String getImagePath() {
return imgPath;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != Activity.RESULT_CANCELED) {
if (requestCode == PICK_IMAGE) {
selectedImagePath = getAbsolutePath(data.getData());
imgUser.setImageBitmap(decodeFile(selectedImagePath));
} else if (requestCode == CAPTURE_IMAGE) {
selectedImagePath = getImagePath();
imgUser.setImageBitmap(decodeFile(selectedImagePath));
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
}
public String getAbsolutePath(Uri uri) {
String[] projection = { MediaColumns.DATA };
@SuppressWarnings("deprecation")
Cursor cursor = managedQuery(uri, projection, null, null, null);
if (cursor != null) {
int column_index = cursor.getColumnIndexOrThrow(MediaColumns.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} else
return null;
}
public Bitmap decodeFile(String path) {
try {
// Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, o);
// The new size we want to scale to
final int REQUIRED_SIZE = 70;
// Find the correct scale value. It should be the power of 2.
int scale = 1;
while (o.outWidth / scale / 2 >= REQUIRED_SIZE && o.outHeight / scale / 2 >= REQUIRED_SIZE)
scale *= 2;
// Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeFile(path, o2);
} catch (Throwable e) {
e.printStackTrace();
}
return null;
}
他在这里选择一张图片。您可以为文件实现相同的图像。 或者:Getting the video path of capture video using default camera in android