Android仿支付宝自定义密码输入框及安全键盘(密码键盘)

public PasswordInputView(Context context, String payMoney, List payWayList) { 
 this.cOntext= context; 
 this.payMOney= payMoney; 
 this.payWayList = payWayList; 
 payPwdDialog = new BottomSheetDialog(context); 
 View view = LayoutInflater.from(context).inflate(R.layout.dialog_pay_pwd, null, false); 
 initStep1(view); 
 initStep2(view); 
 llyPwdInputView = (LinearLayout) view.findViewById(R.id.lly_pwd_input_view); 
 llyPayWaySelect = (LinearLayout) view.findViewById(R.id.lly_pay_way_select); 
 showStep1(); // 显示第一页 
} 

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package com.syd.paypwddialogdemo; 
import static android.graphics.Paint.ANTI_ALIAS_FLAG; 
import android.content.Context; 
import android.content.res.Resources; 
import android.content.res.TypedArray; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Paint; 
import android.graphics.RectF; 
import android.support.v7.widget.AppCompatEditText; 
import android.util.AttributeSet; 
/** 
 * 自定义密码输入框 
 */ 
public class PasswordEditText extends AppCompatEditText { 
 private int textLength; 
 private int borderColor; 
 private float borderWidth; 
 private float borderRadius; 
 private int passwordLength; 
 private int passwordColor; 
 private float passwordWidth; 
 private float passwordRadius; 
 private Paint passwordPaint = new Paint(ANTI_ALIAS_FLAG); 
 private Paint borderPaint = new Paint(ANTI_ALIAS_FLAG); 
 private final int defaultCOntMargin= 5; 
 private final int defaultSplitLineWidth = 3; 
 public PasswordEditText(Context context, AttributeSet attrs) { 
  super(context, attrs); 
  final Resources res = getResources(); 
  final int defaultBorderColor = res.getColor(R.color.colorGray); 
  final float defaultBorderWidth = res.getDimension(R.dimen.default_ev_border_width); 
  final float defaultBorderRadius = res.getDimension(R.dimen.default_ev_border_radius); 
  final int defaultPasswordLength = res.getInteger(R.integer.default_ev_password_length); 
  final int defaultPasswordColor = res.getColor(R.color.colorBlack); 
  final float defaultPasswordWidth = res.getDimension(R.dimen.default_ev_password_width); 
  final float defaultPasswordRadius = res.getDimension(R.dimen.default_ev_password_radius); 
  TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.PasswordEditText, 0, 0); 
  try { 
   borderColor = a.getColor(R.styleable.PasswordEditText_borderColor, defaultBorderColor); 
   borderWidth = a.getDimension(R.styleable.PasswordEditText_borderWidth, defaultBorderWidth); 
   borderRadius = a.getDimension(R.styleable.PasswordEditText_borderRadius, defaultBorderRadius); 
   passwordLength = a.getInt(R.styleable.PasswordEditText_passwordLength, defaultPasswordLength); 
   passwordColor = a.getColor(R.styleable.PasswordEditText_passwordColor, defaultPasswordColor); 
   passwordWidth = a.getDimension(R.styleable.PasswordEditText_passwordWidth, defaultPasswordWidth); 
   passwordRadius = a.getDimension(R.styleable.PasswordEditText_passwordRadius, defaultPasswordRadius); 
  } finally { 
   a.recycle(); 
  } 
  borderPaint.setStrokeWidth(borderWidth); 
  borderPaint.setColor(borderColor); 
  passwordPaint.setStrokeWidth(passwordWidth); 
  passwordPaint.setStyle(Paint.Style.FILL); 
  passwordPaint.setColor(passwordColor); 
 } 
 @Override 
 protected void onDraw(Canvas canvas) { 
  int width = getWidth(); 
  int height = getHeight(); 
  RectF rect = new RectF(0, 0, width, height); 
  borderPaint.setColor(borderColor); 
  canvas.drawRoundRect(rect, borderRadius, borderRadius, borderPaint); 
  RectF rectIn = new RectF(rect.left + defaultContMargin, rect.top + defaultContMargin, 
    rect.right - defaultContMargin, rect.bottom - defaultContMargin); 
  borderPaint.setColor(Color.WHITE); 
  canvas.drawRoundRect(rectIn, borderRadius, borderRadius, borderPaint); 
  borderPaint.setColor(borderColor); 
  borderPaint.setStrokeWidth(defaultSplitLineWidth); 
  for (int i = 1; i 

/** 
 * 初始化密码键盘 
 */ 
private void initKeyboard() { 
 final int number = 10; 
 int[] keys = new int[number]; 
 for (int i = 0; i <10; i++) { 
  keys[i] = i; 
 } 
 // 随机生成键盘数字 
 Random random = new Random(); 
 for (int i = 0; i (); 
 for (int i = 0; i <12; i++) { 
  Map map = new HashMap<>(); 
  if (i <9) { 
   map.put("num", String.valueOf(keys[i])); 
  } else if (i == 9) { 
   map.put("num", ""); 
  } else if (i == 10) { 
   map.put("num", String.valueOf(keys[9])); 
  } else if (i == 11) { 
   map.put("num", ""); 
  } 
  numList.add(map); 
 } 
 KeyAdapter keyAdapter = new KeyAdapter(context, numList, handler); 
 gvKeyboard.setAdapter(keyAdapter); 
} 

holder.btnKey.setOnClickListener(new View.OnClickListener() { 
 @Override 
 public void onClick(View v) { 
  Message msg = new Message(); 
  msg.what = Constants.KEYBOARD_INPUT; 
  msg.obj = position; 
  handler.sendMessage(msg); 
 } 
}); 

Handler handler = new Handler() { 
 @Override 
 public void dispatchMessage(Message msg) { 
  switch (msg.what) { 
   case Constants.KEYBOARD_INPUT: 
    int position = (int) msg.obj; 
    if (position <11 && position != 9) { 
     // 点击0-9按键 
     password = etPwd.getText().append(numList.get(position).get("num")).toString(); 
     etPwd.setText(password); 
    } else { 
     if (position == 11) { 
      // 点击退格键 
      if (!TextUtils.isEmpty(password) && !password.equals("")) { 
       password = etPwd.getText().delete(password.length() - 1, password.length()).toString(); 
       etPwd.setText(password); 
      } 
     } 
    } 
    break; 
  } 
 } 
}; 

package com.syd.paypwddialogdemo; 
public interface OnPwdInputListener { 
 void onPwdInput(String password); 
} 

textWatcher = new TextWatcher() { 
 @Override 
 public void afterTextChanged(Editable s) { 
  if (etPwd.getText().length() == 6) { 
   onPwdInputListener.onPwdInput(etPwd.getText().toString()); 
  } 
 } 
}; 
etPwd.addTextChangedListener(textWatcher); 

pwdInputView.setOnPwdInputListener(new OnPwdInputListener() { 
 @Override 
 public void onPwdInput(String password) { 
  Toast.makeText(MainActivity.this, password, Toast.LENGTH_SHORT).show(); 
 } 
});