Android——P235

实现登陆界面记住密码功能：

xml代码：

 

1 
       2 
     
        8     
       15     
      
        23         
        24         
       
         29  30             
         36  37             
         44         
        45         
        49         
        50         
       
         55  56             
         62  63             
         71         
        72         
        76         
        77         
       
         81             
         88         
        89     
       90     
      102 
     

 

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Java代码:

Button btn;    EditText eduse;    EditText edpsw;    CheckBox checkbox;    SharedPreferences sp = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        btn = (Button) findViewById(R.id.btn_login);        eduse = (EditText) findViewById(R.id.et_number);        edpsw = (EditText) findViewById(R.id.et_password);        checkbox = (CheckBox) findViewById(R.id.chkRemember);        sp = getSharedPreferences("userinfo",MODE_PRIVATE);        if (sp.getBoolean("checkboxBoolean", true))        {            eduse.setText(sp.getString("num", null));            edpsw.setText(sp.getString("psw", null));            checkbox.setChecked(true);        }        btn.setOnClickListener(new View.OnClickListener()        {            @Override            public void onClick(View v) {                boolean CheckBoxLogin = checkbox.isChecked();                if (CheckBoxLogin) {                    SharedPreferences.Editor editor = sp.edit();                    editor.putString("num", eduse.getText().toString());                    editor.putString("psw", edpsw.getText().toString());                    editor.putBoolean("auto", true);                    editor.commit();                } else {                    SharedPreferences.Editor editor = sp.edit();                    editor.putString("num", null);                    editor.putString("psw", null);                    editor.putBoolean("auto", false);                    editor.commit();                }                Toast.makeText(MainActivity.this, "登陆成功！", Toast.LENGTH_SHORT).show();            }        }        );    }