MathView - 展示数学公式的Android视图
jopen
9年前
介绍：
一个第三方视图用于轻松在Android应用展示数学公式的view。有两种渲染引擎：MathJax and KaTeX. 支持Android 版本4.1 (Jelly Bean) and newer。它其实是用Webview＋js实现的。
运行效果：
使用说明：
依赖
dependencies { compile fileTree(include: ['*.jar'], dir: 'libs') compile 'com.android.support:appcompat-v7:23.0.0' compile 'io.github.kexanie.library:MathView:0.0.4' } 在布局文件中定义MathView
例如:
<LinearLayout ...> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Formula one: from xml with MathJax" android:textStyle="bold"/> <io.github.kexanie.library.MathView android:id="@+id/formula_one" android:layout_width="match_parent" android:layout_height="wrap_content" auto:text="When \\(a \\ne 0\\), there are two solutions to \\(ax^2 + bx + c = 0\\) and they are $$x = {-b \\pm \\sqrt{b^2-4ac} \\over 2a}.$$" auto:engine="MathJax" > </io.github.kexanie.library.MathView> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Formula two: from Java String with KaTeX" android:textStyle="bold"/> <io.github.kexanie.library.MathView android:id="@+id/formula_two" android:layout_width="match_parent" android:layout_height="wrap_content" auto:engine="KaTeX" > </io.github.kexanie.library.MathView> </LinearLayout> 在Activity中获得实例
public class MainActivity extends AppCompatActivity { MathView formula_two; String tex = "This come from string. You can insert inline formula:" + " \\(ax^2 + bx + c = 0\\) " + "or displayed formula: $$\\sum_{i=0}^n i^2 = \\frac{(n^2+n)(2n+1)}{6}$$"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override protected void onResume() { super.onResume(); formula_two = (MathView) findViewById(R.id.formula_two); formula_two.setText(tex); } }