Question

如何在其他活动中使用Android默认导航？

我不想使用后退按钮。

MainActivity：

<?php
$students = array("Student1", "Student2", "Student3", "Student4");
if ($_POST) {
    $response = array();
    $response["success"] = FALSE;
    $name = (isset($_POST["name"])) ? $_POST["name"] : '--';
    $present = (isset($_POST["present"])) ? $_POST["present"] : false;
    $marked = ($present=="true") ? "Present" : "Absent";
    $content = $name . ": " . $marked . "\n";
    try {
        $file_name = "Records.txt";
        file_put_contents($file_name, $content,FILE_APPEND);
        $response["success"] = TRUE;
    } catch (Exception $exc) {
        $response["success"] = FALSE;
        $response["message"] = $exc->getMessage();
    }
    echo json_encode($response);
    exit;
}
?>

<!DOCTYPE html>
<html lang="en">
    <head>
  <title>Students Records</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
  <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>
    <body>

        <div class="container">
            <h2>Student Attendance Records</h2>
            <p>Maintain students attendance record using this application. Created using Core PHP, HTML, CSS, JavaScript and bootstrap libraries.</p>            
            <table class="table table-hover">
                <thead>
                    <tr>
                        <th>Name</th>
                        <th>Date</th>
                        <th>Present/Absent</th>
                    </tr>
                </thead>
                <tbody>
                    <?php foreach ($students as $student) { ?>  
                        <tr>
                            <td><?php echo $student; ?></td>
                            <td><?php echo date('d/m/Y'); ?></td>
                            <td><button type="button" class="btn btn-success" onclick="attendance(this)">Present</button>  <button type="button" class="btn btn-danger" onclick="attendance(this)">Absent</button></td>
                        </tr>
                    <?php } ?>
                </tbody>
            </table>
        </div>

    </body>
</html>
<script type="text/javascript">
                                function attendance(obj) {
                                    var name = jQuery(obj).parent().siblings(':first').html();
                                    var present = false;
                                    if (jQuery(obj).hasClass("btn-success")) {
                                        present = true;
                                    }
                                    var marked = (present) ? "Present" : "Absent";
                                    jQuery.ajax({
                                        url: "http://localhost/attendance/index.php",
                                        method: "POST",
                                        type: "JSON",
                                        data: {name: name, present: present},
                                        success: function(data) {
                                            if (data) {
                                                alert(name + " has been marked " + marked);
                                            } else {
                                                alert("There was an error please check Console for more details.")
                                                console.log(data);
                                            }
                                        }
                                    });
                                }


</script>

Answer 1

让所有需要抽屉的活动继承自定义抽象活动类，并在其onCreate方法中添加抽屉。

上课一样：

public abstract class MyNavigationActivity extends AppCompatActivity { 
   @Override 
   protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
     setSupportActionBar(toolbar);
     DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
     ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
        this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
     drawer.setDrawerListener(toggle);
     toggle.syncState();

     NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
     navigationView.setNavigationItemSelectedListener(this);
   } 
}

然后：

public class MyActivity extends MyNavigationActivity{ 
   @Override 
   protected void onCreate(Bundle savedInstanceState) { 
       super.onCreate(savedInstanceState);
       FragmentManager fm = getFragmentManager();
       fm.beginTransaction().replace(R.id.content_frame, new MainFragment()).commit();
   }
}

如何在所有活动中使用Android Studio默认导航抽屉

1 个答案: