代码本

recyclerView控件

implementation 'com.android.support:recyclerview-v7:27.1.1'

可能是API改动了，现在不能直接写getReceiver，而是需要写context.getReceiver

获取网络权限

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE">

获取监听系统开机广播

<user-permission android:name="android.permission.RECEIVER_BOOT_COMPLETED"></user-permission>

SharedPreference

private SharedPreferences pref;

private SharedPreferences.Editor editor;

pref= PreferenceManager.getDefaultSharedPreferences(this);

```

editor=pref.edit();

if(remeber.isChecked()){

editor.putString("account","admin");

    editor.putString("password","123456");

    editor.putBoolean("remeber_password",true);

```