Android: EditText ที่ แสดง หรือ ซ่อน password

คำอธิบายดูที่ Kotlin

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="100dp"
        android:gravity="center"
        android:orientation="horizontal">

        <EditText
            android:id="@+id/pwd"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="Password"
            android:inputType="textPassword"
            android:minWidth="200sp" />

        <Button
            android:id="@+id/showHideBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Show" />
    </LinearLayout>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:app="http://schemas.android.com/apk/res-auto"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

tools:context=".MainActivity">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_marginTop="100dp"

android:gravity="center"

android:orientation="horizontal">

<EditText

android:id="@+id/pwd"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:hint="Password"

android:inputType="textPassword"

android:minWidth="200sp" />

<Button

android:id="@+id/showHideBtn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Show" />

</LinearLayout>

MainActivity.java

package com.phaisarns.myapplication;

import android.support.v7.app.AppCompatActivity;
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;

public class MainActivity extends AppCompatActivity {

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

        final EditText pwd = findViewById(R.id.pwd);

        final Button showHideBtn = findViewById(R.id.showHideBtn);
        showHideBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (showHideBtn.getText().toString().equals("Show")) {
                    pwd.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
                    showHideBtn.setText("Hide");
                } else {
                    pwd.setTransformationMethod(PasswordTransformationMethod.getInstance());
                    showHideBtn.setText("Show");
                }
            }
        });
    }
}

package com.phaisarns.myapplication;

import android.support.v7.app.AppCompatActivity;

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;

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

final EditText pwd = findViewById(R.id.pwd);

final Button showHideBtn = findViewById(R.id.showHideBtn);

showHideBtn.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

if (showHideBtn.getText().toString().equals("Show")) {

pwd.setTransformationMethod(HideReturnsTransformationMethod.getInstance());

showHideBtn.setText("Hide");

} else {

pwd.setTransformationMethod(PasswordTransformationMethod.getInstance());

showHideBtn.setText("Show");

}

});

}

Phaisarn Sutheebanjard

blog.phaisarn.com

Android: EditText ที่ แสดง หรือ ซ่อน password