Android_SVG概述及產生使用SVG詳解

標籤：

1.

2.SVG-Path路徑

下面的命令可用於路徑資料：
M = moveto
L = lineto
H = horizontal lineto
V = vertical lineto
C = curveto
S = smooth curveto
Q = quadratic Belzier curve
T = smooth quadratic Belzier curveto
A = elliptical Arc
Z = closepath
注釋：以上所有命令均允許小寫字母。大寫表示絕對位置，小寫表示相對定位。

請把下面的代碼拷貝到記事本，然後把檔案儲存為 "path1.svg"。把此檔案放入您的 web 目錄：

<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg width="100%" height="100%" version="1.1"xmlns="http://www.w3.org/2000/svg"><path d="M250 150 L150 350 L350 350 Z" /></svg>

上面的例子定義了一條路徑，它開始於位置 250 150，到達位置 150 350，然後從那裡開始到 350 350，最後在 250 150 關閉路徑。

3.圖片產生SVG格式

這裡推薦使用GIMP工具產生，具體步驟如下：

根據以上找到Path路徑，將其儲存起來

再到路徑對話方塊中，將path匯出

<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"              "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"><svg xmlns="http://www.w3.org/2000/svg"     width="1.77778in" height="1.77778in"     viewBox="0 0 128 128">  <path id="選區"        fill="none" stroke="black" stroke-width="1"        d="M 108.54,26.04           C 131.59,52.94 125.04,97.93 93.00,114.74             79.15,122.00 75.25,122.17 60.00,122.00             22.32,121.56 -2.52,80.38 8.75,46.00             16.01,23.85 33.60,10.58 56.00,6.44             75.35,3.96 95.68,11.04 108.54,26.04 Z           M 56.97,45.15           C 52.64,43.32 36.54,44.00 31.00,44.00             31.00,44.00 31.00,76.00 31.00,76.00             31.02,78.13 30.74,81.51 32.60,82.98             34.49,84.47 42.35,84.00 45.00,84.00             49.96,83.99 56.82,83.94 60.73,80.43             66.36,75.36 66.06,66.13 56.97,63.00             56.97,63.00 56.97,61.00 56.97,61.00             65.30,56.20 63.38,47.91 56.97,45.15 Z           M 75.00,47.00           C 75.00,47.00 75.00,49.00 75.00,49.00             75.00,49.00 90.00,49.00 90.00,49.00             90.00,49.00 90.00,47.00 90.00,47.00             90.00,47.00 75.00,47.00 75.00,47.00 Z           M 53.69,50.02           C 56.68,52.02 56.68,57.83 53.69,59.83             51.13,61.53 42.36,61.00 39.00,61.00             39.00,61.00 39.00,49.00 39.00,49.00             42.16,49.00 51.36,48.47 53.69,50.02 Z           M 90.00,71.00           C 101.61,70.78 95.70,60.78 91.70,57.84             81.22,50.14 65.06,59.66 68.95,74.00             72.11,85.62 91.42,89.31 96.00,75.95             89.20,76.54 82.26,84.08 76.93,75.95             76.03,74.51 75.51,72.57 75.00,71.00             75.00,71.00 90.00,71.00 90.00,71.00 Z           M 91.00,67.00           C 91.00,67.00 75.00,67.00 75.00,67.00             77.80,56.34 89.44,55.99 91.00,67.00 Z           M 48.00,65.14           C 49.46,65.02 51.56,65.02 52.95,65.14             57.94,66.90 59.11,73.01 55.57,76.57             52.93,79.23 48.51,79.13 45.00,78.98             42.86,78.89 40.68,78.89 39.60,76.69             38.72,74.89 39.00,67.39 39.00,65.14             39.00,65.14 48.00,65.14 48.00,65.14 Z" /></svg>

如果找不到路徑對話方塊，可根據找到

4.實現方式

這裡使用AndroidFillableLoaders架構載入svg，更多可以查看作者文章http://jorgecastillo.xyz/2015/08/16/android-fillable-loaders/

<com.github.jorgecastillo.FillableLoader  android:id="@+id/fillableLoader"  android:layout_width="200dp"  android:layout_height="100dp"  app:fl_originalWidth="@integer/original_svg_width"  app:fl_originalHeight="@integer/original_svg_height"  app:fl_strokeColor="@color/stroke_color"  app:fl_fillColor="@color/fill_color"  app:fl_strokeWidth="@dimen/stroke_width"  app:fl_strokeDrawingDuration="@integer/stroke_drawing_duration"  app:fl_fillDuration="@integer/fill_duration"  app:fl_clippingTransform="waves"  />

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    String svg = "M 108.54,26.04\n" +            "C 131.59,52.94 125.04,97.93 93.00,114.74\n" +            " 79.15,122.00 75.25,122.17 60.00,122.00\n" +            " 22.32,121.56 -2.52,80.38 8.75,46.00\n" +            " 16.01,23.85 33.60,10.58 56.00,6.44\n" +            " 75.35,3.96 95.68,11.04 108.54,26.04 Z\n" +            "M 56.97,45.15\n" +            "C 52.64,43.32 36.54,44.00 31.00,44.00\n" +            " 31.00,44.00 31.00,76.00 31.00,76.00\n" +            " 31.02,78.13 30.74,81.51 32.60,82.98\n" +            " 34.49,84.47 42.35,84.00 45.00,84.00\n" +            " 49.96,83.99 56.82,83.94 60.73,80.43\n" +            " 66.36,75.36 66.06,66.13 56.97,63.00\n" +            " 56.97,63.00 56.97,61.00 56.97,61.00\n" +            " 65.30,56.20 63.38,47.91 56.97,45.15 Z\n" +            "M 75.00,47.00\n" +            "C 75.00,47.00 75.00,49.00 75.00,49.00\n" +            " 75.00,49.00 90.00,49.00 90.00,49.00\n" +            " 90.00,49.00 90.00,47.00 90.00,47.00\n" +            " 90.00,47.00 75.00,47.00 75.00,47.00 Z\n" +            "M 53.69,50.02\n" +            "C 56.68,52.02 56.68,57.83 53.69,59.83\n" +            " 51.13,61.53 42.36,61.00 39.00,61.00\n" +            " 39.00,61.00 39.00,49.00 39.00,49.00\n" +            " 42.16,49.00 51.36,48.47 53.69,50.02 Z\n" +            "M 90.00,71.00\n" +            "C 101.61,70.78 95.70,60.78 91.70,57.84\n" +            " 81.22,50.14 65.06,59.66 68.95,74.00\n" +            " 72.11,85.62 91.42,89.31 96.00,75.95\n" +            " 89.20,76.54 82.26,84.08 76.93,75.95\n" +            " 76.03,74.51 75.51,72.57 75.00,71.00\n" +            " 75.00,71.00 90.00,71.00 90.00,71.00 Z\n" +            "M 91.00,67.00\n" +            "C 91.00,67.00 75.00,67.00 75.00,67.00\n" +            " 77.80,56.34 89.44,55.99 91.00,67.00 Z\n" +            "M 48.00,65.14\n" +            "C 49.46,65.02 51.56,65.02 52.95,65.14\n" +            " 57.94,66.90 59.11,73.01 55.57,76.57\n" +            " 52.93,79.23 48.51,79.13 45.00,78.98\n" +            " 42.86,78.89 40.68,78.89 39.60,76.69\n" +            " 38.72,74.89 39.00,67.39 39.00,65.14\n" +            " 39.00,65.14 48.00,65.14 48.00,65.14 Z";    fillableLoader = (FillableLoader) findViewById(R.id.fillableLoader);    //將產生svg作為字串傳參進來    fillableLoader.setSvgPath(svg);}

findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View view) {        //開啟        fillableLoader.start();    }});

著作權聲明：本文為博主原創文章，未經博主允許不得轉載。

Android_SVG概述及產生使用SVG詳解