blob: 296b96a821ec452802de0d812c833a25bed89c7c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* Copyright (C) 2013 Jorge Ruesga
*
* 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 com.ruesga.android.wallpapers.photophase.utils;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.RectF;
import android.util.DisplayMetrics;
import java.util.Random;
/**
* A helper class with utilities
*/
public class Utils {
private static Random sRandom = new Random();
/**
* This method converts dp unit to equivalent device specific value in pixels.
*
* @param ctx The current context
* @param dp A value in dp (Device independent pixels) unit
* @return float A float value to represent Pixels equivalent to dp according to device
*/
public static float convertDpToPixel(Context ctx, float dp) {
Resources resources = ctx.getResources();
DisplayMetrics metrics = resources.getDisplayMetrics();
return dp * (metrics.densityDpi / 160f);
}
/**
* Used to determine if the device is a tablet or not
*
* @param context The {@link Context} to use.
* @return True if the device is a tablet, false otherwise.
*/
public static final boolean isTablet(final Context context) {
final int layout = context.getResources().getConfiguration().screenLayout;
return (layout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE;
}
/**
* Method that converts a rect from a vertex data
*
* @param vertex The vertex array
* @return RectF The rect data
*/
public static RectF rectFromVertex(float[] vertex) {
RectF rect = new RectF();
rect.left = vertex[0];
rect.top = vertex[7];
rect.right = vertex[6];
rect.bottom = vertex[1];
return rect;
}
/**
* Method that returns a random number between two numbers.
*
* @param low The low number
* @param high The high number
* @return int The random number
*/
public static int getNextRandom(int low, int high) {
return low + (int)(sRandom.nextDouble() * ((high - low) + 1));
}
}
|
