其實很簡單，獲取輸入的之後，設定一個showPassword布林值，然後進行判斷。

       很簡單，程式碼如下：

package com.kuaishouyin.activity;
/**
 * 註冊頁面
 */
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import 
 
android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.Toast;

import com.kuaishouyin.R;

public class RegistActivity extends Activity {

    
    private EditText etPwd;
    private ImageView ivYanjing
 
;
    private String etpwd;
    private Boolean showPassword = true;

    @Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_regist);
        
        etPwd = (EditText) findViewById(R.id.regist_et_pwd);
        ivYanjing 
 
= (ImageView) findViewById(R.id.regist_iv_yanjing);

        //獲取輸入的值

           etpwd = etPwd.getText().toString().trim();