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  • Android:密码显示隐藏

    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:orientation="vertical" >
    
        <EditText
            android:id="@+id/editText1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:ems="10"
            android:inputType="textPassword" >
    
            <requestFocus />
        </EditText>
    
        <CheckBox
            android:id="@+id/checkBox1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="显示密码" />
    
    </LinearLayout>
    package com.example.test;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.text.method.HideReturnsTransformationMethod;
    import android.text.method.PasswordTransformationMethod;
    import android.widget.CheckBox;
    import android.widget.CompoundButton;
    import android.widget.CompoundButton.OnCheckedChangeListener;
    import android.widget.TextView;
    
    public class MainActivity extends Activity {
    private TextView editText1;
    private CheckBox checkBox1;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.test);
            
            editText1 =(TextView) findViewById(R.id.editText1);
            checkBox1=(CheckBox) findViewById(R.id.checkBox1);
    
            checkBox1.setOnCheckedChangeListener(new OnCheckedChangeListener() {
                
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    // TODO Auto-generated method stub
                    if(isChecked){
                        //如果选中,显示密码      
                        editText1.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
                    }else{
                        //否则隐藏密码
                        editText1.setTransformationMethod(PasswordTransformationMethod.getInstance());
                    }
                    
                }
            });
        }
    
    }

    关键是:

    editText1.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
    editText1.setTransformationMethod(PasswordTransformationMethod.getInstance());
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  • 原文地址:https://www.cnblogs.com/tinyphp/p/3964800.html
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