Example usage for android.os AsyncTask AsyncTask

Introduction

In this page you can find the example usage for android.os AsyncTask AsyncTask.

Prototype

public AsyncTask()

Source Link

Document

Creates a new asynchronous task.

Usage

From source file:Main.java

public static void setFBImage(final String fbid, final Context context, final ImageView v) {
    new AsyncTask<String, Void, Bitmap>() {

        @Override/*from   w  w  w  . j  a v  a  2s  .  c  om*/
        protected Bitmap doInBackground(String... strings) {
            File img = new File(context.getFilesDir() + "/profile.jpg");
            Bitmap bmp = null;
            if (img.exists()) {
                try {
                    bmp = BitmapFactory.decodeFile(img.getAbsolutePath());
                } catch (Exception E) {
                    E.printStackTrace();
                }
            } else {
                try {
                    URL img_url = new URL("https://graph.facebook.com/" + String.valueOf(fbid)
                            + "/picture?type=large&redirect=true&width=400&height=400");
                    bmp = BitmapFactory.decodeStream(img_url.openConnection().getInputStream());
                    FileOutputStream fOut = new FileOutputStream(img);
                    bmp.compress(Bitmap.CompressFormat.JPEG, 90, fOut);
                    fOut.flush();
                    fOut.close();
                } catch (Exception E) {
                    E.printStackTrace();
                }
            }
            return bmp;
        }

        @Override
        protected void onPostExecute(Bitmap img) {
            if (img != null) {
                v.setImageBitmap(img);
            }
        }
    }.execute();
}

From source file:Main.java

public static void smoothToTransparentFromColor(final View view, final int color) {
    Date firstDate = new Date();
    final long firstTime = firstDate.getTime();
    executeAsyncTask(new AsyncTask<Void, Integer, Void>() {
        int n = 1, t = 4000;
        boolean increaseN;

        @Override/*from w w w.  j a  va 2 s  .c om*/
        protected Void doInBackground(Void... params) {
            while (!isCancelled()) {
                Date currentDate = new Date();
                long diffTime = currentDate.getTime() - firstTime;

                double y = getCosY(diffTime);
                int alpha = (int) (y * Color.alpha(color));
                int resultColor = setAlphaComponent(color, alpha);
                if (alpha < 0.038 * 255) {
                    publishProgress(0);
                    this.cancel(true);
                    return null;
                }
                publishProgress(resultColor, alpha);
                try {
                    Thread.sleep(38);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            return null;
        }

        @Override
        protected void onProgressUpdate(Integer... values) {
            super.onProgressUpdate(values);
            view.setBackgroundColor(values[0]);
        }
    });
}

From source file:Main.java

/**
 * Run the Runnable "delayed" by using an AsyncTask to first require a new
 * thread and only then, in onPostExecute, run the Runnable on the UI thread.
 * @param runnable Runnable to run on UI thread.
 *///from  w  ww.  j a  v  a 2  s. c o m
public static void runUiDelayed(final Runnable runnable) {
    (new AsyncTask<Void, Void, Void>() {
        @Override
        protected Void doInBackground(Void... arg0) {
            return null;
        }

        /**
         * Always invoked on UI thread.
         */
        @Override
        protected void onPostExecute(Void result) {
            Handler handler = new Handler(Looper.getMainLooper());
            handler.post(runnable);
        }
    }).execute();
}

From source file:Main.java

public static void runAsync(final Runnable r) {
    new AsyncTask<Void, Void, Void>() {
        @Override//from w  w w .j  a v a2 s. c  o  m
        protected Void doInBackground(Void... unused) {
            r.run();
            return null;
        }
    }.execute();
}

From source file:Main.java

public static void jumpPostToActivity(final Context context, final Class<? extends Activity> targetClass,
        final int second) {
    (new AsyncTask<String, Integer, Boolean>() {
        protected Boolean doInBackground(String... params) {
            try {
                Thread.sleep((long) (second * 1000));
            } catch (Exception var3) {
                ;/*from  w w w. j a  v a  2s.c om*/
            }
            return null;
        }

        protected void onPostExecute(Boolean result) {
            super.onPostExecute(result);
            Intent datatIntent = new Intent(context, targetClass);
            context.startActivity(datatIntent);
        }
    }).execute(new String[] { "" });
}

From source file:cloud4all.Utils.NetworkAnode.java

public static void sendRequest(String anode) {
    AsyncTask<String, Void, Void> at = new AsyncTask<String, Void, Void>() {
        @Override//from ww  w.j ava2s.  co m
        protected Void doInBackground(String... url) {
            try {
                HttpClient client = new DefaultHttpClient();
                HttpGet command = new HttpGet(url[0]);
                HttpResponse response = client.execute(command);

                InputStreamReader isr = new InputStreamReader(response.getEntity().getContent());
                BufferedReader in = new BufferedReader(isr);
                String res = in.readLine();
                Log.d("GPIIUserListeners", "GPII has returned: " + res);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }
    };
    at.execute(anode);
}

From source file:Main.java

public static void jumpPostToNewTopActivity(final Context context, final Class<? extends Activity> targetClass,
        final int second, final String... datas) {
    (new AsyncTask<String, Integer, Boolean>() {
        protected Boolean doInBackground(String... params) {
            try {
                Thread.sleep((long) (second * 1000));
            } catch (Exception var3) {
                ;/*ww w .ja  va 2  s.  co  m*/
            }
            return null;
        }

        protected void onPostExecute(Boolean result) {
            super.onPostExecute(result);
            Intent datatIntent = new Intent(context, targetClass);
            datatIntent.setFlags(335544320);
            if (datas != null) {
                for (int i = 0; i < datas.length; ++i) {
                    datatIntent.putExtra("data" + i, datas[i]);
                }
            }

            context.startActivity(datatIntent);
        }
    }).execute(new String[] { "" });
}

From source file:Main.java

public static void jumpPostToNewActivity(final Context context, final Class<? extends Activity> targetClass,
        final int second, final String... datas) {
    (new AsyncTask<String, Integer, Boolean>() {
        protected Boolean doInBackground(String... params) {
            try {
                Thread.sleep((long) (second * 1000));
            } catch (Exception var3) {
                ;//from  www. ja v  a  2  s  .c o  m
            }
            return null;
        }

        protected void onPostExecute(Boolean result) {
            super.onPostExecute(result);
            Intent datatIntent = new Intent(context, targetClass);
            datatIntent.setFlags(268435456);
            if (datas != null) {
                for (int i = 0; i < datas.length; ++i) {
                    datatIntent.putExtra("data" + i, datas[i]);
                }
            }

            context.startActivity(datatIntent);
        }
    }).execute(new String[] { "" });
}

From source file:mc.lib.network.AsyncNetworkHelper.java

public static void hasConnection(final Context context, final OnCompleteListener<Boolean> listener) {
    new AsyncTask<Void, Void, Boolean>() {
        @Override//from  w ww  .j  a v  a2 s . c om
        protected Boolean doInBackground(Void... params) {
            return NetworkHelper.hasConnection(context);
        }

        @Override
        protected void onPostExecute(Boolean res) {
            super.onPostExecute(res);
            listener.complete(res);
        }
    }.execute((Void) null);
}

From source file:Main.java

public static void setBreathingBackgroundColor(final View view, final int color) {
    Date firstDate = new Date();
    final long firstTime = firstDate.getTime();
    mAsyncTask = new AsyncTask<Void, Integer, Void>() {
        int n = 1, t = 3000;
        boolean increaseN;

        @Override/*  w w  w.  ja v  a2 s .com*/
        protected Void doInBackground(Void... params) {
            while (!isCancelled() || !mCancelled) {
                Date currentDate = new Date();
                long diffTime = currentDate.getTime() - firstTime;
                if (diffTime > n * t) {
                    increaseN = true;
                }
                if (increaseN) {
                    n++;
                    increaseN = false;
                }
                double y = getBreathingY(diffTime, n, t);
                int alpha = (int) ((y * 0.618f + 0.382f) * 255);
                int resultColor = setAlphaComponent(color, alpha);
                mColor = resultColor;
                publishProgress(resultColor);
                try {
                    Thread.sleep(38);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            return null;
        }

        @Override
        protected void onProgressUpdate(Integer... values) {
            super.onProgressUpdate(values);
            view.setBackgroundColor(values[0]);
        }
    };
    executeAsyncTask(mAsyncTask);
}