基本上我可以成功添加照片，但它只是显示强制关闭对话框而不是成功消息。或者如果图像太大，它会显示“虚拟内存过载......”我需要知道导致它强制关闭的问题是什么。漏窗？
public class Admin_EditRestaurantImage extends Activity{
// declare TAG and URL for interaction with PHP JSON purpose
private static final String TAG_RID = "rid";
private static final String TAG_SUCCESS = "success";
private static final String TAG_MESSAGE = "message";
private static final String uploadImageURL = "http://192.168.224.1/FYP/admin_updateRestaurantImage.php";
private ProgressDialog pDialog;
//constructor
ListValuePairs lvp = new ListValuePairs();
JSONParser jsonParser = new JSONParser();
//variables
EditText name;
String rid, uripath, image, imgname;
Uri currImageURI;
Intent getI;
int success;
Vibrator vibrator;
//declare main
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.restaurant_updateimage);
vibrator = (Vibrator) getSystemService(getApplicationContext().VIBRATOR_SERVICE);
//get intent and the value from previous layout
getI = getIntent();
rid = getI.getStringExtra(TAG_RID);
//initialized gallerybtn
Button gallerybtn = (Button)findViewById(R.id.gallerybtn_updateimage);
gallerybtn.setOnClickListener(new OnClickListener(){
public void onClick(View view){
//set vibrate for 0.5 seconds whenever the button is clicked
vibrator.vibrate(50);
//to open up a gallery browser
Intent imageI = new Intent();
imageI.setType("image/*");
imageI.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(imageI,"Select Picture.."),1);
}
});
//initialized uploadbtn
Button uploadbtn = (Button)findViewById(R.id.uploadbtn_updateimage);
uploadbtn.setOnClickListener(new OnClickListener(){
public void onClick(View view){
//set vibrate for 0.5 seconds whenever the button is clicked
vibrator.vibrate(50);
// assign to XML layout and retrieve value into variables
name = (EditText)findViewById(R.id.name_updateimage);
imgname = name.getText().toString();
//check if the fields is empty or not
if (imgname.trim().length() <1){
//if yes, toast error message to user
Toast.makeText(getBaseContext(), "Please name your picture..", Toast.LENGTH_LONG).show();
}else{
image = imgname + ".jpg";
//execute httpuploader class
new HttpUploader().execute(getRealPathFromURI(currImageURI));
}
}
});
} // end of main
// To handle when an image is selected from the browser
public void onActivityResult(int requestCode, int resultCode, Intent data){
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
// currImageURI is the global variable to hold the content
currImageURI = data.getData();
uripath = getRealPathFromURI(currImageURI);
// check log cat from response
Log.e("upload image path contains = " , uripath);
// assign to XML layout and set value into the view
TextView path = (TextView) findViewById(R.id.path_updateimage);
path.setText(getRealPathFromURI(currImageURI));
ImageView image_view = (ImageView) findViewById(R.id.image_updateimage);
image_view.setImageURI(currImageURI);
}
}
}
//Convert the image URI to the direct file system path of the image file
public String getRealPathFromURI( Uri contentUri) {
String [] proj={MediaStore.Images.Media.DATA};
Cursor cursor = managedQuery(contentUri,
proj, // columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null); // Order-by clause (ascending by name)
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
String c = cursor.getString(column_index);
return c;
}
//======================================================================
//create async class for HttpUploader
public class HttpUploader extends AsyncTask<String,Void,String> {
//show dialog to user what is going on
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Admin_EditRestaurantImage.this);
pDialog.setMessage("Uploading Image... Please wait..");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
//create background thread
protected String doInBackground(String... path) {
try{
for (String sdPath : path) {
Log.e("path got what",sdPath);
Bitmap bitmapOrg = BitmapFactory.decodeFile(sdPath);
ByteArrayOutputStream bao = new ByteArrayOutputStream();
//Resize the image
double width = bitmapOrg.getWidth();
double height = bitmapOrg.getHeight();
double ratio = 400/width;
int newheight = (int)(ratio*height);
bitmapOrg = Bitmap.createScaledBitmap(bitmapOrg, 400, newheight, true);
//Here you can define .PNG as well
bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 75, bao);
byte[] ba = bao.toByteArray();
String ba1=Base64.encodeBytes(ba);
//call editRestaurantImage function from ListValuePair to converted them into value pairs data then pass value through json
List<NameValuePair> params_uploadImg = lvp.editRestaurantImage(rid, ba1, image);
JSONObject json = jsonParser.makeHttpRequest(uploadImageURL, "POST", params_uploadImg);
//track the values in the json by using Log
Log.e("image json contains = ", json.toString());
//clear the memory of image allocation previously
//bitmapOrg.recycle();
// check for success tag
success = json.getInt(TAG_SUCCESS);
//if the success is equals to 1
if(success == 1){
//toast successful message to user
Toast.makeText(getApplicationContext(), json.getString(TAG_MESSAGE) , Toast.LENGTH_SHORT).show();
}else{
//toast error message to user
Toast.makeText(getApplicationContext(), json.getString(TAG_MESSAGE) , Toast.LENGTH_SHORT).show();
}
} // end of for loop
}catch(JSONException e){
e.printStackTrace();
}
return null;
}
//create ending process
protected void onPostExecute(String string) {
// dismiss the dialog once got all details
pDialog.dismiss();
}
} // end of HttpUploader class
} // end of class
logcat 显示我找不到的东西。我检查了显示第 208、1、165、108 行的行，它们根本没有问题。漏窗是什么意思？
05-17 18:43:46.319: E/upload image path contains =(4980): /mnt/sdcard/DCIM/100MEDIA/IMAG0133.jpg
05-17 18:43:46.369: D/dalvikvm(4980): GC_EXTERNAL_ALLOC freed 666K, 47% free 3525K/6535K, external 1178K/1690K, paused 29ms
05-17 18:43:47.681: D/View(4980): onTouchEvent: viewFlags: 0x18004001
05-17 18:43:47.681: D/View(4980): onTouchEvent: isFocusable: true, isFocusableInTouchMode: false, isFocused: false; focusTaken: false
05-17 18:43:47.701: D/WindowManagerImpl(4980): addView, new view, mViews[2]: com.android.internal.policy.impl.PhoneWindow$DecorView@40518d30
05-17 18:43:47.721: E/path got what(4980): /mnt/sdcard/DCIM/100MEDIA/IMAG0133.jpg
05-17 18:43:47.781: D/dalvikvm(4980): GC_EXTERNAL_ALLOC freed 88K, 47% free 3486K/6535K, external 16892K/18940K, paused 40ms
05-17 18:43:48.572: I/dalvikvm-heap(4980): Clamp target GC heap from 32.611MB to 32.000MB
05-17 18:43:48.572: D/dalvikvm(4980): GC_FOR_MALLOC freed 221K, 44% free 3779K/6663K, external 25271K/26797K, paused 27ms
05-17 18:43:48.832: E/image json contains =(4980): {"message":"Image Successfully Updated!","success":1}
05-17 18:43:48.832: W/dalvikvm(4980): threadid=17: thread exiting with uncaught exception (group=0x4001d5a0)
05-17 18:43:48.842: E/AndroidRuntime(4980): FATAL EXCEPTION: AsyncTask #3
05-17 18:43:48.842: E/AndroidRuntime(4980): java.lang.RuntimeException: An error occured while executing doInBackground()
05-17 18:43:48.842: E/AndroidRuntime(4980): at android.os.AsyncTask$3.done(AsyncTask.java:200)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.util.concurrent.FutureTask.setException(FutureTask.java:125)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.util.concurrent.FutureTask.run(FutureTask.java:138)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.lang.Thread.run(Thread.java:1027)
05-17 18:43:48.842: E/AndroidRuntime(4980): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
05-17 18:43:48.842: E/AndroidRuntime(4980): at android.os.Handler.<init>(Handler.java:121)
05-17 18:43:48.842: E/AndroidRuntime(4980): at android.widget.Toast.<init>(Toast.java:68)
05-17 18:43:48.842: E/AndroidRuntime(4980): at android.widget.Toast.makeText(Toast.java:231)
05-17 18:43:48.842: E/AndroidRuntime(4980): at com.example.pras.Admin_EditRestaurantImage$HttpUploader.doInBackground(Admin_EditRestaurantImage.java:208)
05-17 18:43:48.842: E/AndroidRuntime(4980): at com.example.pras.Admin_EditRestaurantImage$HttpUploader.doInBackground(Admin_EditRestaurantImage.java:1)
05-17 18:43:48.842: E/AndroidRuntime(4980): at android.os.AsyncTask$2.call(AsyncTask.java:185)
05-17 18:43:48.842: E/AndroidRuntime(4980): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
05-17 18:43:48.842: E/AndroidRuntime(4980): ... 4 more
05-17 18:43:49.192: D/WindowManagerImpl(4980): finishRemoveViewLocked, mViews[1]: com.android.internal.policy.impl.PhoneWindow$DecorView@405aa558
05-17 18:43:49.202: E/WindowManager(4980): Activity com.example.pras.Admin_EditRestaurantImage has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40518d30 that was originally added here
05-17 18:43:49.202: E/WindowManager(4980): android.view.WindowLeaked: Activity com.example.pras.Admin_EditRestaurantImage has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40518d30 that was originally added here
05-17 18:43:49.202: E/WindowManager(4980): at android.view.ViewRoot.<init>(ViewRoot.java:278)
05-17 18:43:49.202: E/WindowManager(4980): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:149)
05-17 18:43:49.202: E/WindowManager(4980): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
05-17 18:43:49.202: E/WindowManager(4980): at android.view.Window$LocalWindowManager.addView(Window.java:433)
05-17 18:43:49.202: E/WindowManager(4980): at android.app.Dialog.show(Dialog.java:265)
05-17 18:43:49.202: E/WindowManager(4980): at com.example.pras.Admin_EditRestaurantImage$HttpUploader.onPreExecute(Admin_EditRestaurantImage.java:165)
05-17 18:43:49.202: E/WindowManager(4980): at android.os.AsyncTask.execute(AsyncTask.java:391)
05-17 18:43:49.202: E/WindowManager(4980): at com.example.pras.Admin_EditRestaurantImage$2.onClick(Admin_EditRestaurantImage.java:108)
05-17 18:43:49.202: E/WindowManager(4980): at android.view.View.performClick(View.java:2533)
05-17 18:43:49.202: E/WindowManager(4980): at android.view.View$PerformClick.run(View.java:9320)
05-17 18:43:49.202: E/WindowManager(4980): at android.os.Handler.handleCallback(Handler.java:587)
05-17 18:43:49.202: E/WindowManager(4980): at android.os.Handler.dispatchMessage(Handler.java:92)
05-17 18:43:49.202: E/WindowManager(4980): at android.os.Looper.loop(Looper.java:150)
05-17 18:43:49.202: E/WindowManager(4980): at android.app.ActivityThread.main(ActivityThread.java:4385)
05-17 18:43:49.202: E/WindowManager(4980): at java.lang.reflect.Method.invokeNative(Native Method)
05-17 18:43:49.202: E/WindowManager(4980): at java.lang.reflect.Method.invoke(Method.java:507)
05-17 18:43:49.202: E/WindowManager(4980): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
05-17 18:43:49.202: E/WindowManager(4980): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
05-17 18:43:49.202: E/WindowManager(4980): at dalvik.system.NativeStart.main(Native Method)
我是这方面的初学者，任何人都可以让我知道这个错误是什么意思吗？