支付的密码输入框

来源：互联网发布：sas用哪个软件编辑：程序博客网时间：2024/05/01 07:07
Android密码的输入框
原理
图片的覆盖
之前有一个正方形的框子点击后变成了黑点
private EditText editText;private ImageView[] imageViews;//使用一个数组存储密码框private StringBuffer stringBuffer = new StringBuffer();//存储密码字符private int count = 6;private String strPassword;//密码字符串public ItemPasswordLayout(Context context) {    this(context, null);}public ItemPasswordLayout(Context context, AttributeSet attrs) {    this(context, attrs, 0);}public ItemPasswordLayout(Context context, AttributeSet attrs, int defStyleAttr) {    super(context, attrs, defStyleAttr);    imageViews = new ImageView[6];    View view = View.inflate(context, R.layout.edittext_input_view, this);    editText = (EditText) findViewById(R.id.item_edittext);    imageViews[0] = (ImageView) findViewById(R.id.item_password_iv1);    imageViews[1] = (ImageView) findViewById(R.id.item_password_iv2);    imageViews[2] = (ImageView) findViewById(R.id.item_password_iv3);    imageViews[3] = (ImageView) findViewById(R.id.item_password_iv4);    imageViews[4] = (ImageView) findViewById(R.id.item_password_iv5);    imageViews[5] = (ImageView) findViewById(R.id.item_password_iv6);    editText.setCursorVisible(false);//将光标隐藏    editText.setInputType(InputType.TYPE_CLASS_NUMBER);    setListener();}private void setListener() {    editText.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) {            //重点   如果字符不为""时才进行操作            if (!editable.toString().equals("")) {                if (stringBuffer.length() > 5) {                    //当密码长度大于5位时edittext置空                    editText.setText("");                    return;                } else {                    //将文字添加到StringBuffer中                    stringBuffer.append(editable);                    editText.setText("");//添加后将EditText置空  造成没有文字输入的错局                    count = stringBuffer.length();//记录stringbuffer的长度                    strPassword = stringBuffer.toString();                    if (stringBuffer.length() == 6) {                        //文字长度位6   则调用完成输入的监听                        if (inputCompleteListener != null) {                            inputCompleteListener.inputComplete();                        }                    }                }                for (int i = 0; i < stringBuffer.length(); i++) {                    imageViews[i].setImageResource(R.mipmap.ispassword);                }            }        }    });    editText.setOnKeyListener(new OnKeyListener() {        @Override        public boolean onKey(View v, int keyCode, KeyEvent event) {            if (keyCode == KeyEvent.KEYCODE_DEL                    && event.getAction() == KeyEvent.ACTION_DOWN) {                //针对软键盘删除按钮的处理                if (onKeyDelete()) return true;                return true;            }            return false;        }    });}public boolean onKeyDelete() {    if (count == 0) {        count = 6;        return true;    }    if (stringBuffer.length() > 0) {        //删除相应位置的字符        stringBuffer.delete((count - 1), count);        count--;        strPassword = stringBuffer.toString();        imageViews[strPassword.length()].setImageResource(R.mipmap.nopassword);    }    return false;}private InputCompleteListener inputCompleteListener;public void setInputCompleteListener(InputCompleteListener inputCompleteListener) {    this.inputCompleteListener = inputCompleteListener;}//外部调用监听的方法public interface InputCompleteListener {    void inputComplete();}public EditText getEditText() {    return editText;}/** * 获取密码 * * @return */public String getStrPassword() {    return strPassword;}public void setContent(String content) {    editText.setText(content);}
源码 https://github.com/letuszou/InputPasswordEdittext
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