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import android.content.Context; | |
import android.support.v4.content.AsyncTaskLoader; | |
public abstract class CachedLoader<D> extends AsyncTaskLoader<D> { | |
private D mResult; | |
public CachedLoader(Context context) { | |
super(context); | |
} |
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// I forked this code from- http://www.piwai.info/chatheads-basics/ | |
// Chat head is displayed from a service. | |
// uses a permission: <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" /> | |
// This is a service so it needs to be declared in manifest: <service android:name=".ChatHeadService" /> | |
// Whenever you need to display the chat head, just start the service | |
// example: startService(new Intent(context, ChatHeadService.class)); | |
public class ChatHeadService extends Service { | |
private WindowManager windowManager; |
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/** | |
* Creates a 'ghost' bitmap version of the given source drawable (ideally a BitmapDrawable). | |
* In the ghost bitmap, the RGB values take on the values from the 'color' argument, while | |
* the alpha values are derived from the source's grayscaled RGB values. The effect is that | |
* you can see through darker parts of the source bitmap, while lighter parts show up as | |
* the given color. The 'invert' argument inverts the computation of alpha values, and looks | |
* best when the given color is a dark. | |
*/ | |
private Bitmap createGhostIcon(Drawable src, int color, boolean invert) { | |
int width = src.getIntrinsicWidth(); |
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Caveats | |
This implementation uses the OnScrollListener to watch the scrolling state. If you need to set your custom OnScrollListener to perform other logic you have either to replace the implementing interface with a concrete constructor argument or you have to put the logic into the adapter also, if possible. | |
As far as I know it is not possible to set another OnScrollListener without replacing the first one. |
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/* | |
* Copyright (C) 2008 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 |
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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; | |
/** |
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public static Bitmap getRoundedBitmap(Bitmap bitmap) { | |
final Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888); | |
final Canvas canvas = new Canvas(output); | |
final int color = Color.RED; | |
final Paint paint = new Paint(); | |
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); | |
final RectF rectF = new RectF(rect); | |
paint.setAntiAlias(true); |
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/* | |
* Copyright 2013 Evelio Tarazona Cáceres <[email protected]> | |
* | |
* 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 |
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/* | |
* Copyright 2013 Google Inc. | |
* | |
* 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 |
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package com.example.overlay; | |
public class Entry { | |
private final int imageResId; | |
private final String title; | |
public Entry( int imageResId, String title ) { | |
this.imageResId = imageResId; |