android密码框右侧显示小眼睛

 

 

 

 

不知道为什么android 资料好少啊,一艘都2012-2015年的居多....这是为什么呢?

实现效果

//主要代码如下 

 

重要代码 

    private boolean isHideFirst = true;// 输入框密码是否是隐藏的，默认为true



   if (isHideFirst == true) {
                        imageView.setImageResource(R.drawable.open);
                        //密文
                        HideReturnsTransformationMethod method1 = HideReturnsTransformationMethod.getInstance();
                        et_password_code.setTransformationMethod(method1);
                        isHideFirst = false;
                    } else {
                        imageView.setImageResource(R.drawable.close);
                        //密文
                        TransformationMethod method = PasswordTransformationMethod.getInstance();
                        et_password_code.setTransformationMethod(method);
                        isHideFirst = true;

                    }
                    // 光标的位置  
                    int index = et_password_code.getText().toString().length();
                    et_password_code.setSelection(index);

// 

 

 

package com.ynrd.entrepreneur.activity;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import android.text.method.TransformationMethod;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.ynrd.entrepreneur.R;
import com.ynrd.entrepreneur.utils.CountDownTimerUtils;

public class RegisterActivity extends BaseCommonActivity implements View.OnClickListener {

    private Button bu_register_code;
    private TextView tv_register_login_password;
    private boolean isHideFirst = true;// 输入框密码是否是隐藏的，默认为true
    private boolean isFirst = true;// 是否密码登录,默认是验证码登录

    private ImageView imageView;
    private EditText et_password_code;
    private LinearLayout linear_password_code,password_liner;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
    }

    @Override
    protected void initViews() {
        super.initViews();
        //获取验证码
        bu_register_code = findViewById(R.id.bu_register_code);
        tv_register_login_password = findViewById(R.id.tv_register_login_password);
        imageView =  findViewById(R.id.imageView);
        et_password_code = findViewById(R.id.et_password_code);
        linear_password_code = findViewById(R.id.linear_password_code);
        password_liner = findViewById(R.id.password_liner);
    }

    @Override
    protected void initListeners() {
        super.initListeners();
        bu_register_code.setOnClickListener(this);
        tv_register_login_password.setOnClickListener(this);
        imageView.setOnClickListener(this);
        imageView.setImageResource(R.drawable.close);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.bu_register_code:
                //验证码方法 后期调用服务器
                CountDownTimerUtils mCountDownTimerUtils = new CountDownTimerUtils(bu_register_code, 30000, 1000);
                mCountDownTimerUtils.start();
                break;
            case R.id.tv_register_login_password:
                if (isFirst == true){
                    //切换成密码登录
                    linear_password_code.setVisibility(View.GONE);
                    password_liner.setVisibility(View.VISIBLE);
                    tv_register_login_password.setText("使用短信验证码登录 >");
                    isFirst = false;
                }else{
                    //切换成验证码登录
                    linear_password_code.setVisibility(View.VISIBLE);
                    password_liner.setVisibility(View.GONE);
                    tv_register_login_password.setText("使用密码登录 >");
                    isFirst = true;
                }
                break;
            case R.id.imageView:
                    if (isHideFirst == true) {
                        imageView.setImageResource(R.drawable.open);
                        //密文
                        HideReturnsTransformationMethod method1 = HideReturnsTransformationMethod.getInstance();
                        et_password_code.setTransformationMethod(method1);
                        isHideFirst = false;
                    } else {
                        imageView.setImageResource(R.drawable.close);
                        //密文
                        TransformationMethod method = PasswordTransformationMethod.getInstance();
                        et_password_code.setTransformationMethod(method);
                        isHideFirst = true;

                    }
                    // 光标的位置  
                    int index = et_password_code.getText().toString().length();
                    et_password_code.setSelection(index);
                break;
        }
    }
}