package com.banana.k08.home; import android.app.Activity; import android.os.Bundle; import android.text.method.HideReturnsTransformationMethod; import android.text.method.PasswordTransformationMethod; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.EditText; import android.widget.Toast; public class MainActivity extends Activity { private EditText id,password; private CheckBox cb; private Button btn1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); id = (EditText) findViewById(R.id.tv1); password = (EditText) findViewById(R.id.password); cb = (CheckBox) findViewById(R.id.check); //设置选择是否显示密码 cb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton compoundButton, boolean b) { if(cb.isChecked()){ password.setTransformationMethod(HideReturnsTransformationMethod.getInstance()); } else{ password.setTransformationMethod(PasswordTransformationMethod.getInstance()); } } }); findViewById(R.id.btnl).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { String name = id.getText().toString(); String pass = password.getText().toString(); if (name.equals(admin) && pass.equals(admin)) { Toast.makeText(getApplicationContext(),登陆成功,Toast.LENGTH_SHORT).show(); } else { Toast.makeText(getApplicationContext(), 登陆失败,请重新输入, Toast.LENGTH_SHORT).show(); } } }); } }