本文实例为大家分享了android实现密码框右侧显示小眼睛的具体代码，供大家参考，具体内容如下

实现效果

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#ffffff" android:orientation="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="12dp" > <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <EditText android:paddingTop="10dp" android:background="@drawable/selector_sign" android:id="@+id/et_usertel" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" android:hint="@string/editText_phont" android:inputType="phone" android:paddingLeft="90dp" android:singleLine="true" android:textColorHint="#DDDDDD" android:textSize="16sp" /> <EditText android:id="@+id/edt_chosed_country_num" android:layout_width="60dp" android:layout_height="wrap_content" android:layout_alignLeft="@id/et_usertel" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:background="@color/white" android:inputType="number" android:maxLength="5" android:text="+86" android:textColor="#353535" android:textSize="16sp" /> </RelativeLayout> <LinearLayout android:id="@+id/linear_password_code" android:visibility="visible" android:layout_marginTop="10dp" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <EditText android:background="@drawable/selector_sign" android:id="@+id/et_password" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" android:paddingTop="10dp" android:hint="@string/editText_code" android:paddingLeft="90dp" android:singleLine="true" android:textColorHint="#DDDDDD" android:textSize="16sp" /> <Button android:id="@+id/bu_register_code" android:layout_width="wrap_content" android:layout_height="40dp" android:layout_alignRight="@+id/et_password" android:layout_marginRight="2dp" android:background="@drawable/shape_border_color_primary_sign" android:text="@string/verification_code" android:textColor="@drawable/selector_text_color_primary" android:textSize="16sp" /> <!-- <View android:layout_marginTop="1dp" android:layout_alignBottom="@+id/bu_code" android:layout_width="290dp" android:layout_height="1dp" android:background="@color/light_grey"/>--> </RelativeLayout> </LinearLayout> <LinearLayout android:id="@+id/password_liner" android:visibility="gone" android:layout_marginTop="10dp" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <EditText android:background="@drawable/selector_sign" android:id="@+id/et_password_code" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" android:paddingTop="10dp" android:hint="请输入密码登录" android:paddingLeft="90dp" android:singleLine="true" android:textColorHint="#DDDDDD" android:inputType="textPassword" android:textSize="16sp" /> <ImageView android:id="@+id/imageView" android:layout_width="20dp" android:layout_height="20dp" android:layout_alignParentRight="true" android:layout_margin="10dp" /> </RelativeLayout> </LinearLayout> <Button android:textColor="@color/background" android:layout_marginTop="10dp" android:background="@drawable/shape_color_primary" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="登录"/> <LinearLayout android:layout_marginTop="2dp" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:textStyle="bold" android:gravity="center" android:text="使用密码登录 >" android:id="@+id/tv_register_login_password" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout> </LinearLayout> </LinearLayout>

//主要代码如下

<LinearLayout android:id="@+id/password_liner" android:visibility="gone" android:layout_marginTop="10dp" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <EditText android:background="@drawable/selector_sign" android:id="@+id/et_password_code" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" android:paddingTop="10dp" android:hint="请输入密码登录" android:paddingLeft="90dp" android:singleLine="true" android:textColorHint="#DDDDDD" android:inputType="textPassword" android:textSize="16sp" /> <ImageView android:id="@+id/imageView" android:layout_width="20dp" android:layout_height="20dp" android:layout_alignParentRight="true" android:layout_margin="10dp" /> </RelativeLayout> </LinearLayout>

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; } }}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。