alexfu

private void fetchImageFromNetwork() {
    InputStream input = null;
    OutputStream output = null;
    HttpURLConnection urlConnection = null;
    byte[] buffer = new byte[100*1024];
    try {
        URL url = new URL(imageUrl);
        urlConnection = (HttpURLConnection) url.openConnection();
        input = urlConnection.getInputStream();
        output = new FileOutputStream(path);

alexfu

public class FragmentObserver extends Observable {
    @Override
    public void notifyObservers() {
        setChanged(); // Set the changed flag to true, otherwise observers won't be notified.
        super.notifyObservers();
    }
}

alexfu

import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Canvas;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.EditText;

/**

alexfu

/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * 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

alexfu

import android.content.Context;
import android.content.ContextWrapper;
import android.content.res.AssetManager;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.util.DisplayMetrics;
import android.util.Log;

/**

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public class MyActivity extends Activity {
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if(windowActionBarOverlay()) {
      // Do something
    }
  } 
  

alexfu

public class DontScaleMe extends Activity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    setContentView(R.layout.alayout);
    ViewGroup parent = findViewById(R.id.root);
    
    Bitmap bitmap = obtainBitmapFromSomewhere();
    
    // This will scale your Bitmap to fit it's bounds.
    parent.setBackground(new BitmapDrawable(getResources(), bitmap));

alexfu

import android.content.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.os.Build;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.widget.FrameLayout;

/**
 * A FrameLayout that fits it's content into the viewable

alexfu

public class ColorUtils {
  private static final double LM_RED_COEFFICIENT = 0.2126;
  private static final double LM_GREEN_COEFFICIENT = 0.7152;
  private static final double LM_BLUE_COEFFICIENT = 0.0722;

  public static int calculateRelativeLuminance(int color) {
    int red = (int) (Color.red(color) * LM_RED_COEFFICIENT);
    int green = (int) (Color.green(color) * LM_GREEN_COEFFICIENT);
    int blue = (int) (Color.blue(color) * LM_BLUE_COEFFICIENT);
    return red + green + blue;

alexfu

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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