Android实现登录界面记住密码的存储

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 public class MainActivity extends AppCompatActivity {
 private EditText etName;
 private EditText etPassword;
 private SharedPreferences sharedPreferences;
 private CheckBox cbremenber;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  initViews();
  sharedPreferences=getSharedPreferences("remenberpassword", Context.MODE_PRIVATE);
  boolean isRemember=sharedPreferences.getBoolean("remenberpassword",false);
  if(isRemember) {
   String name = sharedPreferences.getString("name", "");
   String password = sharedPreferences.getString("password", "");
   etName.setText(name);
   etPassword.setText(password);
   cbremenber.setChecked(true);
  }
 }

 private void initViews() {
  etName=(EditText) findViewById(R.id.etName);
  etPassword=(EditText) findViewById(R.id.etPassword);
  cbremenber=(CheckBox)findViewById(R.id.cbremenber);
 }

 public void login(View view){
  String name=etName.getText().toString();
  String password=etPassword.getText().toString();
  if("admin".equals(name)&&"123456".equals(password)){
   SharedPreferences.Editor editor= sharedPreferences.edit();
   if(cbremenber.isChecked()){
    editor.putBoolean("remenberpassword",true);
    editor.putString("name",name);
    editor.putString("password",password);
   }else {
    editor.clear();
   }
   editor.commit();
   Intent intent=new Intent(this,WelcomeActivity.class);
   startActivity(intent);
   finish();
  }else {
   Toast.makeText(this,"账号或密码有误",Toast.LENGTH_LONG).show();

  }
 }
}

 public class WelcomeActivity extends AppCompatActivity {

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