@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); Log.d("onActivityResult","success"); // if (resultCode == RESULT_OK) { // 如果返回数据 if (requestCode == REQUEST_IMAGE_CAPTURE) { try { //查询的条件语句 String selection = MediaStore.Images.Media.DISPLAY_NAME + "=? "; //查询的sql //Uri：指向外部存储Uri //projection：查询那些结果 //selection：查询的where条件 //sortOrder：排序 Log.d("onActivityResulttry","success"); Cursor cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, new String[]{MediaStore.Images.Media._ID} ,selection,new String[]{fileName},null); Log.d("onActivityResultcursor","success"); if (cursor != null && cursor.moveToFirst()) { do { Uri uri = ContentUris.withAppendedId(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, cursor.getLong(0)); Log.d("luingssd","@"+uri); ivShowPicture = findViewById(R.id.image_view_2); ivShowPicture.setImageURI(uri); }while (cursor.moveToNext()); }else { Toast.makeText(this,"no photo",Toast.LENGTH_SHORT).show(); } } catch (Exception e) { e.printStackTrace(); } } }

Android Intent 数据传递与回传详解

protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == REQ_CODE && resultCode == RESULT_OK) { String backData = data.getStringExtra("back_data"); // ...

Android Intent：页面跳转详解与示例

protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == YOUR_REQUEST_CODE && resultCode == RESULT_OK) { String returnedData = data.getStringExtra("data_key...

@Override protected void onActivityResult(int requestCode, int resultCode,Intent data){ super.onActivityResult(requestCode,resultCode,data); if(data !=null){ if(requestCode==1){ if(resultCode==1){ ItemInfo info = (ItemInfo) data.getSerializableExtra("game"); updateProgress(info); } } } } private void updateProgress(ItemInfo info){ game.setText(info.getName()); } }

它将 requestCode、resultCode 和 data 作为参数传入。如果 data 不为 null，它将从中获取名为 "game" 的 SerializableExtra，并将其传递给 updateProgress() 方法。updateProgress() 方法将获取的 ItemInfo 对象的...

@Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { case BleService.CODE_DISCOVERABLE: // 否是0 Log.d(TAG, "onActivityResult: 蓝牙检测开启结果" + resultCode); if (resultCode > 0) { // 执行蓝牙搜索 startSearch(); } else { // 选择了否，不需要多余的提示 //failed(); } break; default: break; } }

在此代码中，当requestCode为BleService.CODE_DISCOVERABLE时，根据resultCode的值来判断是否成功打开了蓝牙，如果成功则执行startSearch方法，否则不进行任何操作。该方法的作用是处理调用startActivityForResult...

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) { Intent intent = new Intent(this, AnotherActivity.class); startActivity(intent); }这里面的AnotherActivity.class是怎么写的函数，应该写在哪个位置

protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_another); // 在这里添加你的代码 } } 在 startActivity() 方法中，你...

以下代码,请用Bitmap替换Glide来实现同样的功能 @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { if (requestCode == REQUEST_IMAGE_CAPTURE) { Bitmap photo = (Bitmap) data.getExtras().get("data"); Uri tempUri = getImageUri(photo); selectedImagePath = tempUri.getPath(); Glide.with(this).load(tempUri).into(imageView); } else if (requestCode == REQUEST_IMAGE_PICK) { Uri selectedImageUri = data.getData(); selectedImagePath = selectedImageUri.getPath(); Glide.with(this).load(selectedImageUri).into(imageView); } } }

protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { if (requestCode == ...

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == CAMERA_REQUEST_CODE && resultCode == RESULT_OK) {//相机中选择图片 // 获取选择的图片的URI Bundle extras = data.getExtras(); Bitmap bitmap = (Bitmap) extras.get("data"); // 在ImageView中显示选择的图片 camerapicture.setImageBitmap(bitmap); } else if (requestCode == 102 && resultCode == RESULT_OK) {//相册中选择图片 Bundle extras = data.getExtras(); Bitmap bitmap = (Bitmap) extras.get("data"); // 在ImageView中显示选择的图片 choosepicture.setImageBitmap(bitmap); } } }

当requestCode为CAMERA_REQUEST_CODE且resultCode为RESULT_OK时，表示从相机中选择了图片，通过data.getExtras()获取图片的URI，并将其显示在ImageView上。当requestCode为102且resultCode为RESULT_OK时，表示从相册...

tp.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); startActivityForResult(intent,100); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode==100 && data!=null){ try { InputStream inputStream = getContentResolver().openInputStream(data.getData()); Bitmap bitmap = BitmapFactory.decodeStream(inputStream); File file = new File("data/data/com.bawei.app2/image.jgp"); if (!file.exists()){ file.createNewFile(); } BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(file)); bitmap.compress(Bitmap.CompressFormat.JPEG,20,bufferedOutputStream); message = JMessageClient.createSingleImageMessage(username,appkey,file); send(); } catch (Exception e) { e.printStackTrace(); } } }

选择完成后，会返回到当前Activity的onActivityResult方法中，将选择的图片文件保存到本地的data/data/com.bawei.app2/image.jgp路径下，并将该文件作为参数，创建一个JMessageClient的单聊图片消息message对象，...

java private static final int REQUEST_IMAGE_CAPTURE = 1; private void dispatchTakePictureIntent() { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); if (takePictureIntent.resolveActivity(getPackageManager()) != null) { startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) { Bundle extras = data.getExtras(); Bitmap imageBitmap = (Bitmap) extras.get("data"); // 处理照片数据 } }这段代码中data是图片的路径吗

在这段代码中，我们使用了 startActivityForResult 方法来启动一个拍照的 Intent，并传入了一个请求码 REQUEST_IMAGE_CAPTURE。当拍照完成后，系统会调用 onActivityResult 方法，并传入请求码、结果码以及...

@Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent intent){ super.onActivityResult(requestCode,resultCode,intent); if(intent==null){ return; } switch (requestCode){ case REQUEST_REGISTER_CODE: if (resultCode==11){ tvUserId.setText(intent.getStringExtra("userId")); tvUsername.setText(intent.getStringExtra("userName")); ivLogin.setImageResource(R.mipmap.user_2); Toast.makeText(this,"注册成功!",Toast.LENGTH_LONG).show(); }else{ Toast.makeText(this,"注册失败!",Toast.LENGTH_LONG).show(); } break; case REQUEST_LOGIN_CODE: if(resultCode==21){ tvUserId.setText(intent.getStringExtra("userId")); tvUsername.setText(intent.getStringExtra("userName")); ivLogin.setImageResource(R.mipmap.user_2); Toast.makeText(this,"登录成功!",Toast.LENGTH_LONG).show(); }else{ Toast.makeText(this,"登录失败!",Toast.LENGTH_LONG).show(); } break; default: Toast.makeText(this,"操作失败!",Toast.LENGTH_LONG).show(); break; } }现在有一个新的页面Activity应如何修改本代码进行跳转

如果你要在当前Activity中跳转到一个新的Activity，你需要在当前Activity中添加一个Intent，然后调用startActivity方法来启动新的Activity。以下是一个示例代码： Intent intent = new Intent(CurrentActivity....

补全这个代码 override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) Log.d(TAG, "onActivityResult() called with: requestCode = $requestCode, " + "resultCode = $resultCode, data = $data") if(requestCode == REQUEST_CODE_GALLERY){ } }

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) Log.d(TAG, "onActivityResult() called with: requestCode = $...

package com.example.dzy; import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends AppCompatActivity implements View.OnClickListener { private Button btnLogin,btnRegister; private ImageView ivLogin; private TextView tvUsername,tvUserId; private static final int REQUEST_REGISTER_CODE=1; private static final int REQUEST_LOGIN_CODE=2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tvUserId=findViewById(R.id.tv_main_userid); tvUsername=findViewById(R.id.tv_main_username); ivLogin=findViewById(R.id.iv_login); btnLogin=findViewById(R.id.btn_main_login); btnRegister=findViewById(R.id.btn_main_register); btnLogin.setOnClickListener(this); btnRegister.setOnClickListener(this); } @Override public void onClick(View view){ Intent intent=new Intent(); switch (view.getId()){ case R.id.btn_main_login: intent.setClass(this,LoginActivity.class); startActivityForResult(intent,REQUEST_LOGIN_CODE); break; case R.id.btn_main_register: intent.setClass(this,RegisterActivity.class); startActivityForResult(intent,REQUEST_REGISTER_CODE); break; } } @Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent intent){ super.onActivityResult(requestCode,resultCode,intent); if(intent==null){ return; } switch (requestCode){ case REQUEST_REGISTER_CODE: if (resultCode==11){ tvUserId.setText(intent.getStringExtra("userId")); tvUsername.setText(intent.getStringExtra("userName")); ivLogin.setImageResource(R.mipmap.user_2); Toast.makeText(this,"注册成功!",Toast.LENGTH_LONG).show(); Intent intent1=new Intent(this,NavigationActivity.class); }else{ Toast.makeText(this,"注册失败!",Toast.LENGTH_LONG).show(); } break; case REQUEST_LOGIN_CODE: if(resultCode==21){ tvUserId.setText(intent.getStringExtra("userId")); tvUsername.setText(intent.getStringExtra("userName")); ivLogin.setImageResource(R.mipmap.user_2); Toast.makeText(this,"登录成功!",Toast.LENGTH_LONG).show(); Intent intent1=new Intent(this,NavigationActivity.class); }else{ Toast.makeText(this,"登录失败!",Toast.LENGTH_LONG).show(); } break; default: Toast.makeText(this,"操作失败!",Toast.LENGTH_LONG).show(); break; } } }这段中intent1没有进行页面跳转

在代码中，虽然创建了一个新的 Intent 对象 intent1，但是没有将其用于页面跳转。您需要在 case 语句中添加页面跳转代码，例如： case REQUEST_REGISTER_CODE: if (resultCode==11){ tvUserId.setText...

android 在fragment中调用public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data)方法，为什么方法不被执行

protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); // your code } 希望能帮助到你解决问题。

请检查和解释以下代码@Override @SuppressLint("SetTextI18n") protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); ImageView img_result=(ImageView) findViewById(R.id.pic); switch (requestCode) { case TAKE_PHOTO: if (resultCode == RESULT_OK) { //将图片解析成Bitmap对象，并把它显现出来 //String filePath = getFilesDir().getAbsolutePath()+"/image.jpeg"; //bitmap = BitmapFactory.decodeFile(filePath); //注意bitmap，后面再decode就会为空 try { bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUri)); } catch (FileNotFoundException e) { e.printStackTrace(); } //bitmap = BitmapFactory.decodeFile(picpath); picpath=imageUri.getPath().toString(); Log.e("", imageUri.getAuthority()); Log.e("picpath",picpath); @SuppressLint("SdCardPath") String fileName = picpath; img_result.setImageBitmap(bitmap); img_result.invalidate(); } break; case SCAN_OPEN_PHONE: if (resultCode == RESULT_OK){ Uri selectImage=data.getData(); String[] FilePathColumn={MediaStore.Images.Media.DATA}; Cursor cursor = getContentResolver().query(selectImage, FilePathColumn, null, null, null); cursor.moveToFirst(); //从数据视图中获取已选择图片的路径 int columnIndex = cursor.getColumnIndex(FilePathColumn[0]); picpath = cursor.getString(columnIndex); Log.e("picpath",picpath); cursor.close(); bitmap = BitmapFactory.decodeFile(picpath); img_result.setImageBitmap(bitmap); img_result.invalidate(); } break; default: break; } //处理图像数据,以上传到mysql ByteArrayOutputStream baos = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); piccjg = baos.toByteArray(); }

这是一段Android代码，用于处理拍照和选择相册图片后的操作。在拍照或选择相册图片后，会将图片解析成Bitmap对象，并将其显示在ImageView中。最后，将Bitmap对象压缩成JPEG格式的字节数组，以便上传到MySQL数据库。

@Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); recyclerView = findViewById(R.id.recycler_view); button = findViewById(R.id.take_photo); //点击拍照 button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if(ContextCompat.checkSelfPermission(getApplicationContext(),Manifest.permission.CAMERA)!=PackageManager.PERMISSION_GRANTED){ ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.CAMERA},REQUEST_CAMERA_PERMISSION); }else { takePicture(); } } }); }这个代码里面怎么添加保存照片的操作

protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) { // 获取拍照结果的Bitmap对象 Bitmap bitmap = ...

Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");File tempFile = new File(Environment.getExternalStorageDirectory() + "/pic", "temp.png");if (!tempFile.getParentFile().exists()) { tempFile.getParentFile().mkdir();}Uri uri = FileProvider.getUriForFile(MainActivity.this, "com.cmiot.demo.fileprovider", tempFile);intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);startActivityForResult(intent, 100);其mainactivity的完整代码

protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == ...

private void callGallery() { ActivityCompat.requestPermissions(NoteEditActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);//动态申请权限 ActivityCompat.requestPermissions(NoteEditActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1);//动态申请权限 Intent getAlbum = new Intent(Intent.ACTION_PICK);//隐私传递intent getAlbum.setType("image/*"); startActivityForResult(getAlbum, 1);//以请求码为1（onActivityResult方法里会处理），开始活动。 } 以上代码跟添加图片后只显示图片地址有没有关系如果有，该如何修改，请给出修改后的代码

protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == 1 && resultCode == RESULT_OK && data != ...

掌握Android Activity间数据传递：onActivityResult详解

protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == 0 && resultCode == Activity.RESULT_OK) { // ...

Android自定义底部图片选择Dialog实现步骤

protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == RESULT_OK) { if (requestCode == REQUEST_...

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