Code library/Remember password + force deprecation, Remember password in code library

Code library/Remember password + force deprecation, Remember password in code library

1. ActivityCollector is a tool class.

2. Use SharedPreferences. Editor to save the key-Value Pair type and use SharedPreferences to retrieve the data.

3. Create a forced deprecation broadcast and add the final activity logic and applications related to the AlertDialog class.

BaseActivity

import android.content.IntentFilter;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;/** * Created by YRC on 2016/11/2. */public class BaseActivity extends AppCompatActivity {    private ForceOfflineReceiver receiver;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        ActivityCollector.addActivity(this);    }    @Override    protected void onResume() {        super.onResume();        IntentFilter intentFilter=new IntentFilter();        intentFilter.addAction("com.example.yrc.rememberyourpassword.FORCE_OFFLINE");        receiver=new ForceOfflineReceiver();        registerReceiver(receiver,intentFilter);    }    @Override    protected void onPause() {        super.onPause();        if (receiver!=null){            unregisterReceiver(receiver);            receiver=null;        }    }    @Override    protected void onDestroy() {        super.onDestroy();        ActivityCollector.removeActivity(this);    }}

LoginActivity

 

import android.content.Intent;import android.content.SharedPreferences;import android.os.Bundle;import android.preference.PreferenceManager;import android.view.View;import android.widget.Button;import android.widget.CheckBox;import android.widget.EditText;import android.widget.Toast;/** * Created by YRC on 2016/11/2. */public class LoginActivity extends BaseActivity {    private SharedPreferences pref;    private SharedPreferences.Editor editor;    private EditText accountEdit;    private EditText passwordEdit;    private CheckBox rememberPass;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.login);        pref= PreferenceManager.getDefaultSharedPreferences(this);        accountEdit= (EditText) findViewById(R.id.AccountEdit);        passwordEdit= (EditText) findViewById(R.id.PassportEdit);        rememberPass= (CheckBox) findViewById(R.id.checkBox);        Button login = (Button) findViewById(R.id.loginBtn);        boolean isRemember=pref.getBoolean("remember_password",false);        if (isRemember){            String account=pref.getString("account","");            String password=pref.getString("password","");            accountEdit.setText(account);            passwordEdit.setText(password);            rememberPass.setChecked(true);        }        login.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                String account=accountEdit.getText().toString();                String password=passwordEdit.getText().toString();                if (account.equals("admin")&& password.equals("123456")){                    editor=pref.edit();                    if (rememberPass.isChecked()){                        editor.putBoolean("remember_password",true);                        editor.putString("account",account);                        editor.putString("password",password);                    }else {                        editor.clear();                    }                    editor.apply();                    Intent intent=new Intent(LoginActivity.this,MainActivity.class);                    startActivity(intent);                    finish();                }else {                    Toast.makeText(LoginActivity.this,"account or password is invalid",                            Toast.LENGTH_SHORT).show();                }            }        });    }}

ForceOfflineReceiver

 

Import Android. content. BroadcastReceiver;ImportAndroid. content. Context;ImportAndroid. content. DialogInterface;ImportAndroid. content. Intent;ImportAndroid. support. v7.app. AlertDialog;/*** Created by YRC on 2016/11/2.*/Public classForceOfflineReceiverExtendsBroadcastReceiver {@ OverridePublic voidOnReceive (FinalContext context, Intent intent) {AlertDialog. Builder dialogBuilder =NewAlertDialog. Builder (context); dialogBuilder. setTitle ("Warning"); DialogBuilder. setMessage ("You are force to be offLine"); DialogBuilder. setCancelable (False); DialogBuilder. setPositiveButton ("OK",NewDialogInterface. OnClickListener () {@ OverridePublic voidOnClick (DialogInterface dialog,IntWhich) {ActivityCollector. finishAll (); Intent intent =NewIntent (context, LoginActivity.Class); Context. startActivity (intent );}//Because the activity is started in the broadcast receiver, it must beIntentAdd this flag and set the dialog box type. Otherwise, it cannot be displayed in the broadcast receiver.        }); DialogBuilder. show ();}}

Login. xml

<TableLayoutXmlns:Android=Https://schemas.android.com/apk/res/android"    Xmlns:Tools=Https://schemas.android.com/tools"    Android: Layout_width ="Match_parent"    Android: Layout_height ="Match_parent"    Android: StretchColumns ="1"    Tools: Context ="Com. example. yrc. rememberyourpassword. MainActivity"> <TableRow        Android: Layout_width ="Match_parent"        Android: Layout_height ="Match_parent"> <TextView            Android: Text ="Account :"            Android: Layout_column ="0"/> <EditText            Android: Layout_width ="Wrap_content"            Android: Layout_height ="Wrap_content"            Android: Hint ="Input your acccount"            Android: Id ="@ + Id/AccountEdit"            Android: Layout_column ="1"/>
 TableRow> <TableRow        Android: Layout_width ="Match_parent"        Android: Layout_height ="Match_parent"> <TextView            Android: Text ="Passport"            Android: Layout_column ="0"/> <EditText            Android: Layout_width ="Wrap_content"            Android: Layout_height ="Wrap_content"            Android: Id ="@ + Id/PassportEdit"            Android: Layout_column ="1"/>
 TableRow> <TableRow        Android: Layout_width ="Match_parent"        Android: Layout_height ="Match_parent"> <CheckBox            Android: Text ="Remember password"            Android: Id ="@ + Id/checkBox"            Android: Layout_column ="0"            Android: Layout_span ="2"/>
 TableRow>