Android自定义view实现输入控件

@Override protected void onDraw(Canvas canvas) {    if (text.length() > 0) {      if (isDrawSrc) {        super.onDraw(canvas);      }      canvas.drawText(text, 0, text.length(), (getMeasuredWidth() - textWidth) / 2, (getMeasuredHeight() + dy) / 2, textPaint);    } else {      super.onDraw(canvas);  }}

public void requestEtFocus() {    catchInput.setFocusable(true);    catchInput.setFocusableInTouchMode(true);    catchInput.setClickable(true);    catchInput.requestFocus();    showSoftKeyboard(catchInput);    catchInput.setCursorVisible(false);    catchInput.setSelection(catchInput.length());}

// 动态添加TextImageView   for (int i = 0; i < passwordLength; i++) {      TextImageView view = new TextImageView(context);      view.setTextSize(textSize);      view.setTextColor(textColor);      content.addView(view);      if (unInputBg != 0) {        view.setBackgroundResource(unInputBg);// 设置未输入前的背景      }      LinearLayout.LayoutParams params = new LinearLayout.LayoutParams((int) itemWidth, (int) itemHeight);      if (i == 0) {        params.setMargins((int) dpToPixel(1), 0, 0, 0);      }      if (i == passwordLength - 1) {        params.setMargins(0, 0, (int) dpToPixel(1), 0);      }      view.setLayoutParams(params);      views[i] = view;      // 分割字体，给TextIamgeView绘制文字      if (text != null && i < text.length()) {        setItemText(text.subSequence(i, i + 1));      }    }    // 输入监听    catchInput.addTextChangedListener(new TextWatcher() {      @Override      public void beforeTextChanged(CharSequence s, int start, int count, int after) {      }      @Override      public void onTextChanged(CharSequence s, int start, int before, int count) {        if (s.length() > 0) {          // index：成员变量；保存当前的输入了几个字符          if (index > s.length()) {            removeItemText();// 删除          } else {            setText(s);            if (s.length() == passwordLength) {              if (listener != null) {                // 输入完成回调                listener.onInputCodeEnd(s);              }            }          }        } else if (s.length() == 0 && index > 0) {          removeItemText();        }      }   @Override   public void afterTextChanged(Editable s) {  }});