Java tutorial
/* * Copyright (C) 2013 Andreas Stuetz <andreas.stuetz@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.thezero.qrfi; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.annotation.SuppressLint; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.Color; import android.media.MediaScannerConnection; import android.net.Uri; import android.net.wifi.WifiManager; import android.os.AsyncTask; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.support.v4.app.Fragment; import android.support.v4.view.ViewCompat; import android.support.v7.widget.CardView; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.Spinner; import android.widget.Toast; import com.google.zxing.BarcodeFormat; import com.google.zxing.Result; import com.google.zxing.WriterException; import com.google.zxing.client.android_my.wifi.WifiConfigManager; import com.google.zxing.client.result.WifiParsedResult; import com.google.zxing.client.result.WifiResultParser; import com.google.zxing.common.BitMatrix; import com.google.zxing.qrcode.QRCodeWriter; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class SuperAwesomeCardFragment extends Fragment { private static final String ARG_POSITION = "position"; private static String TAG = "QRFi::Card"; private int position; private static Context c; public static int GALLERY_INTENT_CALLED = 1; public static int GALLERY_KITKAT_INTENT_CALLED = 2; public static SuperAwesomeCardFragment newInstance(int position, Context con) { SuperAwesomeCardFragment f = new SuperAwesomeCardFragment(); Bundle b = new Bundle(); b.putInt(ARG_POSITION, position); f.setArguments(b); c = con; return f; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); position = getArguments().getInt(ARG_POSITION); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { final View rootView; if (position == 0) { rootView = inflater.inflate(R.layout.fragment_generate, container, false); final CardView cardQr = (CardView) rootView.findViewById(R.id.card_qr); cardQr.setVisibility(View.GONE); String[] items = new String[] { "Open", "WEP", "WPA/WPA2" }; final EditText ssid = (EditText) rootView.findViewById(R.id.edit_ssid); final EditText pass = (EditText) rootView.findViewById(R.id.edit_pass); final Spinner spinner = (Spinner) rootView.findViewById(R.id.wifi_type); ArrayAdapter<String> adapter = new ArrayAdapter<>(c, android.R.layout.simple_spinner_item, items); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(adapter); spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { if (parent.getSelectedItem().toString().equals("Open")) { rootView.findViewById(R.id.second).setVisibility(View.GONE); } else { rootView.findViewById(R.id.second).setVisibility(View.VISIBLE); } } @Override public void onNothingSelected(AdapterView<?> parent) { } }); final boolean[] cardHide = { true }; Button delete = (Button) rootView.findViewById(R.id.delete); delete.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { cardHide[0] = true; cardQr.animate().translationY(0).alpha(0.0f).setListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { super.onAnimationEnd(animation); if (cardHide[0]) cardQr.setVisibility(View.GONE); } }); ssid.setText(""); pass.setText(""); spinner.setSelection(0); } }); Button gen = (Button) rootView.findViewById(R.id.generate); gen.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // WIFI:S:Pistol;T:WEP;P:pistolawifi2;; if (pass.getText().length() < 8 && !spinner.getSelectedItem().toString().equals("Open")) { Toast.makeText(c, c.getString(R.string.error_pass), Toast.LENGTH_LONG).show(); return; } String ap = "WIFI:S:" + ssid.getText() + ";T:" + spinner.getSelectedItem().toString() + ";P:" + pass.getText() + ";;"; Log.d(TAG, ap); QRCodeWriter writer = new QRCodeWriter(); try { BitMatrix matrix = writer.encode(ap, BarcodeFormat.QR_CODE, 700, 700, null); int height = matrix.getHeight(); int width = matrix.getWidth(); final Bitmap bmp = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565); for (int x = 0; x < width; x++) { for (int y = 0; y < height; y++) { bmp.setPixel(x, y, matrix.get(x, y) ? Color.BLACK : Color.WHITE); } } ImageView qr_image = (ImageView) rootView.findViewById(R.id.qrimage); qr_image.setImageBitmap(bmp); cardHide[0] = false; cardQr.setVisibility(View.VISIBLE); cardQr.setAlpha(1.0f); cardQr.animate().translationY(10).alpha(1.0f); Button dialogButton = (Button) rootView.findViewById(R.id.ok); dialogButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { File sdcard = Environment.getExternalStorageDirectory(); FileOutputStream out = null; File check = new File(sdcard, "/wifipv/"); if (!(check.exists())) { boolean resu = check.mkdir(); if (!resu) { return; } } try { File myFile = new File(sdcard, "/wifipv/" + ssid.getText() + ".png"); out = new FileOutputStream(myFile); boolean success = bmp.compress(Bitmap.CompressFormat.PNG, 100, out); if (success) { MediaScannerConnection.scanFile(c, new String[] { myFile.getAbsolutePath() }, null, new MediaScannerConnection.OnScanCompletedListener() { @Override public void onScanCompleted(String path, Uri uri) { Log.d(TAG, "file " + path + " was scanned seccessfully: " + uri); Intent shareIntent = new Intent(); shareIntent.setAction(Intent.ACTION_SEND); shareIntent.putExtra(Intent.EXTRA_STREAM, uri); shareIntent.setType("image/png"); shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); Intent new_intent = Intent.createChooser(shareIntent, c.getText(R.string.send_to)); new_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); c.startActivity(new_intent); } }); } else { Toast.makeText(c, c.getString(R.string.error_share), Toast.LENGTH_LONG) .show(); } } catch (FileNotFoundException e) { e.printStackTrace(); } finally { if (out != null) try { out.close(); } catch (IOException e) { e.printStackTrace(); } } } }); } catch (WriterException e) { e.printStackTrace(); } } }); } else { rootView = inflater.inflate(R.layout.fragment_scan, container, false); Button scan = (Button) rootView.findViewById(R.id.scan); scan.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent myIntent = new Intent(c, ScanActivity.class); myIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); c.startActivity(myIntent); } }); Button gallery = (Button) rootView.findViewById(R.id.gallery); gallery.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { selectFromGallery(); } }); /*final boolean[] tutorialHide = {false}; final CardView tutorial = (CardView)rootView.findViewById(R.id.card_tutorial); tutorial.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if(tutorialHide[0]){ tutorialHide[0]=false; Animation anidelta = new ResizeAnimation(tutorial, tutorial.getHeight()); anidelta.setDuration(500); anidelta.setFillAfter(true); tutorial.startAnimation(anidelta); }else{ tutorialHide[0]=true; Animation anidelta = new ResizeAnimation(tutorial, 120); anidelta.setDuration(500); anidelta.setFillAfter(true); tutorial.startAnimation(anidelta); } } });*/ } ViewCompat.setElevation(rootView, 50); return rootView; } @SuppressLint("NewApi") @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode != Activity.RESULT_OK) return; if (null == data) return; Uri originalUri = null; if (requestCode == GALLERY_INTENT_CALLED) { originalUri = data.getData(); } else if (requestCode == GALLERY_KITKAT_INTENT_CALLED) { originalUri = data.getData(); } MainActivity.handleDecodeImage(originalUri); } public void selectFromGallery() { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { Intent intent = new Intent(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(intent, GALLERY_INTENT_CALLED); } else { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.addCategory(Intent.CATEGORY_OPENABLE); intent.setType("image/*"); startActivityForResult(intent, GALLERY_KITKAT_INTENT_CALLED); } } public static void connectAP(Result a) { WifiParsedResult wifiResult = (new WifiResultParser()).parse(a); if (wifiResult != null) { WifiManager wifiManager = (WifiManager) c.getSystemService(Context.WIFI_SERVICE); if (wifiManager == null) { Toast.makeText(c.getApplicationContext(), c.getString(R.string.error_wifimanager), Toast.LENGTH_LONG).show(); return; } Toast.makeText(c.getApplicationContext(), c.getString(R.string.connecting) + wifiResult.getSsid() + "...", Toast.LENGTH_LONG).show(); new WifiConfigManager(wifiManager).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, wifiResult); } else { Toast.makeText(c.getApplicationContext(), c.getString(R.string.error_wifiqr), Toast.LENGTH_LONG).show(); } } }