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MathML-Android

MathML-Android is a small math-ml support lib. it's customized view that extend with webview. this view you can add directly in your layout-xml or you can add as view.

dependency: in your asset folder should have below html file

letx.html

small details

LETXViewer

public method:

loadLETX(String letx)

how to implement

layout-xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <to.hurix.com.letx.LETXViewer android:id="@+id/letxView" android:layout_width="match_parent" android:layout_height="match_parent" ></to.hurix.com.letx.LETXViewer> </LinearLayout>

code level

`public class MainActivity extends AppCompatActivity { private LETXViewer view; private EditText letxEdit;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    view = (LETXViewer)findViewById(R.id.letxView);

    letxEdit  =(EditText)findViewById(R.id.editText);

    letxEdit.setText("\\[\\frac{{7.0\\, \\times \\,{{10}^6}}}{{3.5\\, \\times \\,{{10}^3}}} = \\frac{{7.0\\, \\times \\,10\\, \\times \\,10\\, \\times \\,10\\, \\times \\,\\rlap{-}1 \\rlap{-}0\\, \\times \\,\\rlap{-}1 \\rlap{-}0\\, \\times \\,\\rlap{-}1 \\rlap{-}0}}{{3.5\\, \\times \\,\\rlap{-}1 \\rlap{-}0\\, \\times \\,\\rlap{-}1 \\rlap{-}0 \\times \\,\\rlap{-}1 \\rlap{-}0}}\\]");
    view.loadLETX("\\[\\frac{{7.0\\, \\times \\,{{10}^6}}}{{3.5\\, \\times \\,{{10}^3}}} = \\frac{{7.0\\, \\times \\,10\\, \\times \\,10\\, \\times \\,10\\, \\times \\,\\rlap{-}1 \\rlap{-}0\\, \\times \\,\\rlap{-}1 \\rlap{-}0\\, \\times \\,\\rlap{-}1 \\rlap{-}0}}{{3.5\\, \\times \\,\\rlap{-}1 \\rlap{-}0\\, \\times \\,\\rlap{-}1 \\rlap{-}0 \\times \\,\\rlap{-}1 \\rlap{-}0}}\\]");

    letxEdit.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

        }

        @Override
        public void afterTextChanged(Editable editable) {
            view.loadLETX(editable.toString());

        }
    });
}

}`