实现记住密码功能

salmonzhang · Dec 9, 2019 · 56f4462 · 56f4462
1 parent 381076f
commit 56f4462
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diff --git a/app/src/main/java/com/example/broadcastbestpractice/LoginActivity.java b/app/src/main/java/com/example/broadcastbestpractice/LoginActivity.java
@@ -1,10 +1,13 @@
 package com.example.broadcastbestpractice;
 
 import android.content.Intent;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.Button;
+import android.widget.CheckBox;
 import android.widget.EditText;
 import android.widget.Toast;
 
@@ -13,6 +16,9 @@ public class LoginActivity extends BaseActivity {
     private EditText mAccountEdit;
     private EditText mPasswordEdit;
     private Button mLogin;
+    private SharedPreferences mPref;
+    private CheckBox mRememberPass;
+    private SharedPreferences.Editor mEditor;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -22,12 +28,32 @@ protected void onCreate(Bundle savedInstanceState) {
         mPasswordEdit = (EditText) findViewById(R.id.password);
         mLogin = (Button) findViewById(R.id.login);
 
+        mPref = PreferenceManager.getDefaultSharedPreferences(this);
+        mRememberPass = (CheckBox) findViewById(R.id.remember_pass);
+        boolean isRemember = mPref.getBoolean("remember_password", false);
+        if (isRemember) {
+            String accout = mPref.getString("account", "");
+            String password = mPref.getString("password", "");
+            mAccountEdit.setText(accout);
+            mPasswordEdit.setText(password);
+            mRememberPass.setChecked(true);
+        }
+
         mLogin.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 String account = mAccountEdit.getText().toString();
                 String password = mPasswordEdit.getText().toString();
                 if ("admin".equals(account) && "123456".equals(password)) {
+                    mEditor = mPref.edit();
+                    if (mRememberPass.isChecked()) {
+                        mEditor.putBoolean("remember_password", true);
+                        mEditor.putString("account", account);
+                        mEditor.putString("password", password);
+                    } else {
+                        mEditor.clear();
+                    }
+                    mEditor.apply();
                     startActivity(new Intent(LoginActivity.this, MainActivity.class));
                     finish();
                 } else {

diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
@@ -44,6 +44,21 @@
 
     </LinearLayout>
 
+    <LinearLayout
+        android:orientation="horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <CheckBox
+            android:id="@+id/remember_pass"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textSize="18sp"
+            android:textAllCaps="false"
+            android:text="Remember password"/>
+    </LinearLayout>
     <Button
         android:id="@+id/login"
         android:layout_width="match_parent"