我正在将包含一些信息的图片存储在数据库中。我正在拍照。它没有插入数据，显示int.java.lang.stringlength()调用虚方法。它在最后一天工作但是当我从Xammp数据库中删除历史记录然后我运行代码时它显示错误。
public class DoReport extends AppCompatActivity {
private EditText subject,detail;
private ImageView pic;
private Spinner depart;
private String depat,sub,det;
//for image
private Bitmap selectedImage;
public static String image;
private Uri imageUri;
public final static int PHOTO_FROM_MEMORY_REQUESTED = 10;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_do_report);
subject = (EditText) findViewById(R.id.subject);
detail = (EditText) findViewById(R.id.detail);
depart = (Spinner) findViewById(R.id.Depat_Edit);
}
//to pic the image from galery
public void imgBtn(View v) {
Intent i = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, PHOTO_FROM_MEMORY_REQUESTED);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(requestCode == PHOTO_FROM_MEMORY_REQUESTED && resultCode == RESULT_OK){
updateSelectedPicture(data.getData());
}
}
private void updateSelectedPicture(Uri uri){
try{
imageUri = uri;
InputStream imageStream = getContentResolver().openInputStream(imageUri);
selectedImage = BitmapFactory.decodeStream(imageStream);
ImageView iv = (ImageView) findViewById(R.id.ImgView);
iv.setImageDrawable(new BitmapDrawable(selectedImage));
image=encode(selectedImage);
}catch(FileNotFoundException ex){
Log.e("File not found", "Cannot find background file under received URI");
}
}
public static String encode(Bitmap image)
{
Bitmap immagex=image;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
immagex.compress(Bitmap.CompressFormat.JPEG, 20, baos);
byte[] b = baos.toByteArray();
String imageEncoded = Base64.encodeToString(b,Base64.DEFAULT);
Log.e("LOOK", imageEncoded);
return imageEncoded;
}
public void submit(View v)
{
depat=depart.getSelectedItem().toString();
sub=subject.getText().toString();
det=detail.getText().toString();
if(sub.isEmpty())
{
subject.setError("subject is required");
}
else if(det.isEmpty())
{
detail.setError("subject is required");
}
else {
login_database(depat, sub, det, image);
}
}
private void login_database(final String depat, final String sub,final String det,final String pic) {
RequestQueue queue = Volley.newRequestQueue(this);
StringRequest request = new StringRequest(Request.Method.POST, Static.user_connect,//changes required
new Response.Listener<String>() {
public void onResponse(String response) {
if ((response.contains("successful"))) {
Toast.makeText(DoReport.this, "Successful Submitted",Toast.LENGTH_LONG).show();
Intent i = new Intent (DoReport.this,UserView.class);
startActivity(i);
finish();
}
else {
Toast.makeText(DoReport.this, "Some error occured", Toast.LENGTH_LONG).show();//changes required
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(DoReport.this, error.toString(), Toast.LENGTH_SHORT).show();
Log.d("ERROR", toString());
}
}) {
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> map = new HashMap<>();
map.put("key", "3");//changes required
map.put("Depat", depat);
map.put("Detail", det);
map.put("Pic", pic);
map.put("Subject", sub);
map.put("U_id",Static.id);
return map;
}
};
queue.add(request);
}