java - 如何使用java将相机拍摄的图像添加到Android中的imageviewer?我试过下面的代码
问题描述
我也添加了相机权限,它工作得很好,但图像视图没有保存捕获的图像。清单文件仍然是正确的。该应用程序没有崩溃,即使它也没有显示任何错误。我什至想将图像添加到数据库中。
public class RiderProfile extends AppCompatActivity {
ImageView imgDp,imgDlFront,imgDlback;
TextView txtDp,txtDl;
Button btnSave;
public static final int CAMERA_REQUEST = 1888;
private static final String TAG = "1111";
private static final int MY_CAMERA_PERMISSION_CODE = 100;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_rider_profile);
imgDp = (ImageView)findViewById(R.id.imgDp);
imgDlFront = (ImageView)findViewById(R.id.imgDlFront);
imgDlback = (ImageView)findViewById(R.id.imgDlback);
txtDp = (TextView) findViewById(R.id.txtDp);
txtDl = (TextView)findViewById(R.id.txtDl);
btnSave = (Button) findViewById(R.id.btnSave);
imgDp.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, CAMERA_REQUEST);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK) {
Bitmap photo1 = (Bitmap) data.getExtras().get("data");
Log.d(TAG, "onActivityResult: click ");
imgDp.setImageBitmap(photo1);
}
}
});
imgDlFront.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, CAMERA_REQUEST);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK) {
Bitmap photo2 = (Bitmap) data.getExtras().get("data");
Log.d(TAG, "onActivityResult: click ");
imgDlFront.setImageBitmap(photo2);
}
}
});
imgDlback.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, CAMERA_REQUEST);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK) {
Bitmap photo3 = (Bitmap) data.getExtras().get("data");
Log.d(TAG, "onActivityResult: click ");
imgDlback.setImageBitmap(photo3);
}
}
});
}
}
解决方案
1. @Override
public void onCameraOpen() {
Intent pictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (pictureIntent.resolveActivity(getPackageManager()) != null) {
try {
imageFile = CameraUtils.createImageFile(this);
} catch (IOException e) {
e.printStackTrace();
return;
}
imageUri = FileProvider.getUriForFile(this, getPackageName() + ".provider", imageFile);
pictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(pictureIntent, IntentRequestCode.RESULT_CODE_IMAGE_CAPTURE);
}
}
2. @Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case RESULT_CODE_IMAGE_CAPTURE:
if (resultCode == RESULT_OK) {
onCaptureImage(imageFile, imageUri);
} else {
Toast.makeText(this, "Camera canceled", Toast.LENGTH_SHORT).show();
}
break;
}
}
3. void onCaptureImage(File imageFile, Uri imageUri) {
Uri uri = Uri.fromFile(imageFile);
String selectedImagePath = CameraUtils.getPath(application, uri);
File file1 = new File(selectedImagePath);
if (file1.length() != 0) {
FileAttachments b_data = new FileAttachments();
b_data.setFileName(file1.getName());
CameraUtils.writeScaledDownImage(file1, getApplication());
b_data.setFile(file1);
}
}
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