package com.myapp.app;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.myapp.app.dataaccess.DatabaseHelper;
import com.myapp.app.dataobjects.MediaMO;
import com.myapp.app.dataobjects.UserMO;
import com.myapp.app.delegates.MediaDelegates;
import com.myapp.app.delegates.UserDelegate;
import com.myapp.app.utility.Constants;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class ImageUploadActivity extends Activity {
private static int RESULT_LOAD_IMAGE = 1;
//EditText initialized here
EditText Myusername;
EditText user;
private MediaDelegates mediaDelegates = new MediaDelegates();
private File imgFile;
private DatabaseHelper dbHelper;
private Context context;
private UserMO userMO = new UserMO();
private ImageView imageView;
private EditText eText;
private Gson gson = new Gson();
private ProgressDialog prgDialog;
private MediaMO mediaMO = new MediaMO();
private UserDelegate userDelegates = new UserDelegate();
private String text;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.image_upload, menu);
return true;
}
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.imageupload);
context = getApplicationContext();
dbHelper = new DatabaseHelper(context);
userMO = dbHelper.getRingeeUserData(1);
imageView = (ImageView) findViewById(R.id.imgView);
prgDialog = new ProgressDialog(this);
// Set Progress Dialog Text
prgDialog.setMessage("Please wait...");
// Set Cancelable as False
prgDialog.setCancelable(false);
prgDialog.show();
new AsyncTask<Void, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(Void... arg0) {
String mediaMo = mediaDelegates.getFileFromServer(userMO, context);
if (!mediaMo.equals("null")) {
mediaMO = gson.fromJson(mediaMo, new TypeToken<MediaMO>() {
}.getType());
try {
URL url = new URL(mediaMO.getFileSrcLink());
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
return BitmapFactory.decodeStream(input);
} catch (IOException e) {
Log.i(Constants.TAG, e.toString());
}
} else
mediaMO = null;
Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), R.drawable.ic_action_user);
return largeIcon;
}
@Override
protected void onPostExecute(Bitmap myBitmap) {
prgDialog.cancel();
imageView.setImageBitmap(myBitmap);
}
}.execute(null, null, null);
//EditText added here for get current username
Myusername = (EditText) findViewById(R.id.userEditText);
String s = userMO.getUserName();
Myusername.setText(s);
Myusername.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
final String str1 = Myusername.getText().toString();
Intent int1 = new Intent(ImageUploadActivity.this, NameUpdateActivity.class);
Bundle bundle = new Bundle();
bundle.putString("userdata1", str1);
int1.putExtras(bundle);
//(int1);
startActivityForResult(int1, 0);
}
});
Button buttonAddImage = (Button) findViewById(R.id.buttonAddPicture);
buttonAddImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent galleryIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
// Start the Intent
startActivityForResult(galleryIntent, RESULT_LOAD_IMAGE);
}
});
Button buttonLoadImage = (Button) findViewById(R.id.buttonLoadPicture);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// prgDialog.show();
if (mediaMO == null) {
new AsyncTask<Void, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(Void... arg0) {
MediaMO mediaMO1 = new MediaMO();
mediaMO1.setRingeeUserId(userMO.getRingeeUserId());
mediaMO1.setIsType(Constants.IS_TYPE_PROFILE_IMAGE);
String mediaMo = mediaDelegates.uploadFileToServer(mediaMO1, context, imgFile);
if (!mediaMo.equals("null")) {
mediaMO = gson.fromJson(mediaMo, new TypeToken<MediaMO>() {
}.getType());
try {
URL url = new URL(mediaMO.getFileSrcLink());
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
return BitmapFactory.decodeStream(input);
} catch (IOException e) {
Log.i(Constants.TAG, e.toString());
}
}
Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), R.drawable.ic_action_user);
return largeIcon;
}
@Override
protected void onPostExecute(Bitmap myBitmap) {
prgDialog.cancel();
imageView.setImageBitmap(myBitmap);
}
}.execute(null, null, null);
} else {
new AsyncTask<Void, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(Void... arg0) {
String mediaMo = mediaDelegates.updateFileToServer(mediaMO, context, imgFile);
if (!mediaMo.equals("null")) {
mediaMO = gson.fromJson(mediaMo, new TypeToken<MediaMO>() {
}.getType());
try {
URL url = new URL(mediaMO.getFileSrcLink());
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
return BitmapFactory.decodeStream(input);
} catch (IOException e) {
Log.i(Constants.TAG, e.toString());
}
}
Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), R.drawable.ic_action_user);
return largeIcon;
}
@Override
protected void onPostExecute(Bitmap myBitmap) {
prgDialog.cancel();
imageView.setImageBitmap(myBitmap);
}
}.execute(null, null, null);
}
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.imgView);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
imgFile = new File(picturePath);
}
}
}
这是我得到的mycode“java.lang.RuntimeException：执行doInBackground（）时发生错误”。我是android的新手。我不明白为什么会出现这个错误，任何人都可以帮我解决这个错误。
my logcat is
08-13 13:31:22.520 18138-18255/? E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #5
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:299)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
at java.util.concurrent.FutureTask.run(FutureTask.java:239)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:838)
Caused by: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:200)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.ringee.app.ImageUploadActivity$4$2.doInBackground(ImageUploadActivity.java:197)
at com.ringee.app.ImageUploadActivity$4$2.doInBackground(ImageUploadActivity.java:192)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask.run(FutureTask.java:234)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:838)
Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:387)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:189)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.ringee.app.ImageUploadActivity$4$2.doInBackground(ImageUploadActivity.java:197)
at com.ringee.app.ImageUploadActivity$4$2.doInBackground(ImageUploadActivity.java:192)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask.run(FutureTask.java:234)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
at java.lang.Thread.run(Thread.java:838)
答案 0 :(得分：0)
在第165行，你是否试过传递你想要转换的类而不是使用TypeToken？
input type="text" name="YEAR" id="YEARMAKE" value="" required="true" onblur="validate(this)" />
function validate(input)
{
var yearlength= document.getElementById(input);
if (yearlength.length < 4) {
input.setCustomValidity('The year must have 4 digits');
return false;
} else {
input.setCustomValidity('');
return true;
}
而不是
mediaMO = gson.fromJson(mediaMo, MediaMO.class);