[英]onActivityResult is not calling from tab fragment
我在MainActivity中實現了3標簽。 第一個選項卡是圖像片段,其中實現了2個按鈕。 第一是打開相機,第二是打開圖庫。 我想在稱為“上載活動”的新活動中顯示該捕獲或選定的圖像。
圖像片段
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
// return inflater.inflate(R.layout.fragment_images, container, false);
View v = inflater.inflate(R.layout.fragment_images, container, false);
FloatingActionButton btnCamera = (FloatingActionButton) v.findViewById(R.id.btnCamera);
FloatingActionButton btnFolder = (FloatingActionButton) v.findViewById(R.id.btnFolder);
btnCamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
File imageFolder = new File(Environment.getExternalStorageDirectory(), "/My Children");
imageFolder.mkdir();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-mm-dd");
String timestamp = simpleDateFormat.format(new Date());
File image = new File(imageFolder, timestamp+ ".jpg");
// Uri uriImage = Uri.fromFile(image);
Uri uriImage = FileProvider.getUriForFile(getActivity(), BuildConfig.APPLICATION_ID + ".provider", image);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.putExtra(MediaStore.EXTRA_OUTPUT, uriImage);
getActivity().startActivityForResult(intent, TAKE_PICTURE);
}
});
btnFolder.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
getActivity().startActivityForResult(intent, SELECT_PICTURE);
}
});
return v;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
try {
if (requestCode == TAKE_PICTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap cam = (Bitmap) extras.get("data");
Intent i = new Intent().setClass(getActivity(), Upload.class);
i.putExtra("image", cam);
startActivity(i);
}
if (requestCode == SELECT_PICTURE && requestCode == RESULT_OK) {
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
Intent i = new Intent(getActivity(), Upload.class);
i.putExtra("image", bitmap);
startActivity(i);
}
}catch (Exception e){
e.printStackTrace();
}
還在MainActivity中添加了此代碼
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Fragment page = getSupportFragmentManager().findFragmentByTag("android:switcher:" + R.id.vp_pages + ":" + vp_pages.getCurrentItem() );
if (page != null){
page.onActivityResult(requestCode, resultCode, data);
}
}
這是我要顯示圖像的上載類
public class Upload extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload);
Button btnUpload = (Button) findViewById(R.id.btnUpload);
ImageView imageview = (ImageView) findViewById(R.id.imageview);
Intent intent = getIntent();
Bitmap bitmap = (Bitmap) intent.getParcelableExtra("image");
imageview.setImageBitmap(bitmap);
}
}
捕獲或選擇圖像后,將打開“圖像”片段,而不是“上載活動”。
由於要從圖像片段啟動相機或圖庫圖像捕獲,因此只能從那里啟動Intent。
但是問題是,當您設置
intent.putExtra(MediaStore.EXTRA_OUTPUT, uriImage);
由於您已經指定了自己的uri,因此onActivityResult中的數據將為null。 因此,對於攝像機請求,您可以通過將其全局存儲在temp uri中來進行檢查。
Uri cameraUri;
接着
cameraUri = FileProvider.getUriForFile(getActivity(), BuildConfig.APPLICATION_ID + ".provider", image);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.putExtra(MediaStore.EXTRA_OUTPUT, cameraUri);
getActivity().startActivityForResult(intent, TAKE_PICTURE);
目前,uri是指一些臨時文件。 相機只需單擊並覆蓋該文件即可成為有效文件。
所以現在得到如下結果。
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == TAKE_PICTURE && resultCode == RESULT_OK) {
Intent i = new Intent().setClass(getActivity(), Upload.class);
//here pass the original uri that we stored while starting camera
i.putExtra("image", cameraUri.toString());
startActivity(i);
}
if (requestCode == SELECT_PICTURE && requestCode == RESULT_OK) {
Intent i = new Intent(getActivity(), Upload.class);
//this will return you data in case of open gallery
i.putExtra("image", data.getData().toString());
startActivity(i);
}
}
現在在另一個活動上,只需接收並顯示
public class Upload extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload);
Button btnUpload = (Button) findViewById(R.id.btnUpload);
ImageView imageview = (ImageView) findViewById(R.id.imageview);
Intent intent = getIntent();
if(intent==null){
return;
}
Uri imageUri = Uri.parse(intent.getStringExtra("image"));
imageview.setImageURI(imageUri);
}
}
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