ExprEval.java 文件源码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_expr_eval);
    setSupportActionBar((Toolbar)findViewById(R.id.my_toolbar));
    LibraryLocalizer.localize(this);
    in = (EditText) findViewById(R.id.inputText);
    out = (TextView) findViewById(R.id.outputText);
    out.setMovementMethod(new ScrollingMovementMethod());
    evalBtn = (Button)findViewById(R.id.evalBtn);
    evalBtn.setOnClickListener(this);
    ctxDialog = new ContextDialogFragment();
    ctx = new TextViewExpressionContext(out);
    ctx.addObserver(ctxDialog);
    ctxDialog.update(ctx, null);
}