我想从图库上传图片，使其成为我的个人资料图片。但我的手机被绞死了几秒钟，之后，它进入正常模式并上传图片有一些延迟。任何人都可以帮我避免挂起并快速上传图片。
这是我的代码。
public void res() {
System.out.println("res method for jscript");
webView.loadUrl("javascript:callFromActivity(\"" + msgToSend + "\")");
}
public void showCustomAlert() {
// TODO Auto-generated method stub
Context context = getApplicationContext();
// Create layout inflator object to inflate toast.xml file
LayoutInflater inflater = getLayoutInflater();
// Call toast.xml file for toast layout
View toastRoot = inflater.inflate(R.layout.toast, null);
Toast toast = new Toast(context);
// Set layout to toast
toast.setView(toastRoot);
toast.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL,
0, 0);
toast.setDuration(Toast.LENGTH_LONG);
toast.show();
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(data!=null)
{
if (requestCode == CAM_REQUREST) {
Bundle extras = data.getExtras();
if (extras != null) {
bitmap_profile_image = extras.getParcelable("data");
bitmap_profile_image = (Bitmap) data.getExtras().get("data");
imagepath = ImageWrite(bitmap_profile_image);
}
}
else 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();
imagepath = ImageWrite(BitmapFactory.decodeFile(picturePath));
} else {
}
}
Imageuploading();
}
public String ImageWrite(Bitmap bitmap1) {
String extStorageDirectory = Environment.getExternalStorageDirectory()
.toString();
OutputStream outStream = null;
File file = new File(extStorageDirectory, "selectimage.PNG");
try {
outStream = new FileOutputStream(file);
bitmap1.compress(Bitmap.CompressFormat.PNG, 100, outStream);`enter code here`
outStream.flush();
outStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
String imageInSD = "/sdcard/selectimage.PNG";
return imageInSD;
}
protected void Imageuploading() {
// TODO Auto-generated method stub
try {
Log.e("imageuploading", "dfdf");
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
DataInputStream inputStream = null;
String pathToOurFile = (String) imagepath;
// String urlServer =
// "http://demo.cogzideltemplates.com/client/snapchat-clone/index.php/user/image_upload";
String urlServer = Liveurl+"mobile/image_upload";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1 * 1024 * 1024;
FileInputStream fileInputStream = new FileInputStream(new File(
pathToOurFile));
URL url = new URL(urlServer);
connection = (HttpURLConnection) url.openConnection();
// Allow Inputs & Outputs
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
// Enable POST method
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
outputStream = new DataOutputStream(connection.getOutputStream());
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream
.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\""
+ pathToOurFile + "\"" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// Read file
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens
+ lineEnd);
// Responses from the server (code and message)
int serverResponseCode = connection.getResponseCode();
String serverResponseMessage = connection.getResponseMessage();
// Toast.makeText(getApplicationContext(), serverResponseMessage,
// Toast.LENGTH_LONG).show();
System.out.println("image" + serverResponseMessage);
fileInputStream.close();
outputStream.flush();
outputStream.close();
DataInputStream inputStream1 = null;
inputStream1 = new DataInputStream(connection.getInputStream());
String str = "";
String Str1_imageurl = "";
while ((str = inputStream1.readLine()) != null) {
Log.e("Debug", "Server Response " + str);
Str1_imageurl = str;
Log.e("Debug", "Server Response String imageurl" + str);
}
inputStream1.close();
System.out.println("image url inputstream1 " + Str1_imageurl);
// Toast.makeText(getApplicationContext(), Str1_imageurl,
// Toast.LENGTH_LONG).show();
msgToSend = Str1_imageurl.trim();
System.out.println("message to send "+msgToSend);
} catch (Exception e) {
e.printStackTrace();
}
res();
}
public void clearApplicationData() {
File cache = getCacheDir();
File appDir = new File(cache.getParent());
System.out.println("application dir"+appDir);
if (appDir.exists()) {
String[] children = appDir.list();
for (String s : children) {
if (!s.equals("lib")) {
deleteDir(new File(appDir, s));
Log.i("TAG", "**************** File /data/data/APP_PACKAGE/" + s + " DELETED *******************");
Intent i=new Intent(Profile_settings.this,splash.class);
//i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// clearApplicationData();
startActivity(i);
}
}
}
}
public static boolean deleteDir(File dir) {
if (dir != null && dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
boolean success = deleteDir(new File(dir, children[i]));
if (!success) {
return false;
}
}
}
return dir.delete();
}
private void loadSavedPreferences() {
//User has successfully logged in, save this information
// We need an Editor object to make preference changes.
SharedPreferences settings = getSharedPreferences(index.PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
editor.clear();`enter code here`
editor.commit();
}
提前致谢。