小编jam*_*z77的帖子

检查完这个问题后,我仍然不知道如何将项目上传到我的Git Hub存储库.

我是Git Hub的新手,我不知道该怎么做.我创建了一个存储库,但我想将我的项目上传到它.

我在存储库页面上查看了某种上传按钮,但我还没有看到任何类似的东西.

我看过目前为止提供的链接,但我仍然没有在哪里.他们提到命令行,是Windows命令行还是Git Bash？因为我无法做任何事情.

我也尝试过使用Git GUI,但是当我选择我想要的文件夹时,它说它不是Git存储库...是否需要压缩？我尝试在文件夹中添加.gitconfig文件,但它没有什么区别.

提前致谢 :)

我正在尝试使用Android Room,在完成本教程之后,当我尝试构建应用程序时,我收到以下错误:

Error:(23, 27) error: There is a problem with the query: [SQLITE_ERROR] SQL error or missing database (no such table: screen_items)

这个名字很好,应该存在.在进行更改后,我清理了项目并确保从设备中完全卸载了该项目.

在我用这条线Activity初始化东西onCreate:

db = AppDatabase.getDatabase(getApplicationContext());

这是我的代码:

AppDatabase

@Database(entities = {PermitItem.class}, version = 1, exportSchema = false)
public abstract class AppDatabase extends RoomDatabase {
  public static String DATABASE_NAME = "my_database";
  public final static String TABLE_ITEMS = "screen_items";

  private static AppDatabase INSTANCE;

  public abstract PermitItemDao permitItemModel();

  public static AppDatabase getDatabase(Context context) { …

我有以下插入查询

include("ORCLconfig.php");

$addAclaim = oci_parse($conn, "INSERT INTO claims_accidents (ID, CLAIM_NUMBER, DATE_OF, TIME, LOCATION, PURPOSE, WEATHER, ROAD, STREET_LIGHTS, SPEED_LIMIT, SPEED_PRIOR, SPEED_AT_MOMENT, AIRBAGS, AMBULANCE, SIGNALS, OCCUPANTS, DESCRIPTION, ROAD_LOCATION, PH_DRIVING, NAME_OF_DRIVER, DRIVER_DOB, DRIVER_OCCUPATION, MEDICAL_CONDITIONS, DRIVER_CONVICTIONS, AUTHORISED, DRIVER_ADDRESS1, DRIVER_ADDRESS2, DRIVER_ADDRESS3, DRIVER_ADDRESS4, DRIVER_POSTCODE, DRIVER_TELEPHONE, MATCH, V5_NUMBER, KEY_SETS, OS_FINANCE, VEHICLE_VALUE, VEHICLE_REG, VEHICLE_MAKE, VEHICLE_MODEL, NAMED_DRIVER, FATALITIES, DRIVEABLE) VALUES (null, :claimnum, :date_of_accident, :time_of_acc, :location_of_acc, :purpose, :weather, :road, :lights, :speedLimit, :speedPrior, :speedImpact, :airbags, :ambulance, :signals, :occupants , :accdesc, :street_of_acc :ph_driving, :driverName, :DRIVER_DOB, :driverOccupation, :driverMedical, :driverConvictions, :auth, :driverAddress1, :driverAddress2, :driverAddress3, …

我有一个带有导航抽屉的活动,可以在片段之间轻弹.没什么特别的.

但是我想要的是动作栏出现在活动的顶部.问题是我一直在nullpointerexception争取Actionbar.

我试过以下几页的答案:

getActionBar返回null

getActionBar()返回Null(AppCompat-v7 21)

这些都没有奏效,所以我想我会用自己的代码提交自己的问题.

MainActivity.java

package com.jampez.smalltalk;


import com.jampez.smalltalk.fragments.HomeFragment;
import com.jampez.smalltalk.fragments.MessageFragment;
import com.jampez.smalltalk.fragments.PreferencesFragment;
import com.jampez.smalltalk.fragments.SettingsFragment;
import com.jampez.smalltalk.helper.SessionManager;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarDrawerToggle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends FragmentActivity {
    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    private ActionBarDrawerToggle mDrawerToggle;
    private String[] items;
    int selectedPosition;
    private SessionManager session;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState); …

标题是不言自明的。我试过viewDidLayoutSubviews()按照这里的建议调用它，但它没有给我带来任何乐趣。

这是我的代码：

override func viewDidLoad() {
    super.viewDidLoad()

    locationManager.requestWhenInUseAuthorization()

    mapView.mapType = .normal
    mapView.settings.zoomGestures   = true
    mapView.settings.tiltGestures   = true
    mapView.settings.rotateGestures = true
    mapView?.isMyLocationEnabled = true
    locationManager.startUpdatingLocation()
    locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation
    locationManager.delegate = self


    // Do any additional setup after loading the view, typically from a nib.
}

override func viewDidAppear(_ animated: Bool) {
    if(locationManager.location != nil){
        centerMapOnLocation(location: locationManager.location!)
    }
}

func centerMapOnLocation(location: CLLocation)
{
    let camera = GMSCameraPosition.camera(withLatitude: locationManager.location!.coordinate.latitude, longitude: locationManager.location!.coordinate.longitude, zoom: zoom)
        mapView?.animate(to: camera)
}

我正在尝试使用Javascript来检测是否已选中复选框.我的计划是允许用户选中复选框以便将字母标记为已打印,然后使用Ajax更新数据库.

这是我正在使用的代码.

<label for="printed">Printed</label>
<input type="checkbox" name="8200" id="8200" value="P" onclick="checked(this.id);" />
<script type="text/javascript">
  function checked(id) {
    var remember = document.getElementById(id);
    if (remember.checked){
      alert("checked");
    }else{
      alert("You didn't check it!");
    }
  }
</script>

我所得到的只是一个错误的说法 Uncaught TypeError: boolean is not a function from Google Chrome and checked is not a function from Firefox.

如何RecyclerView在更新内容后保持当前滚动位置？

在onCreate我设置的任务重复如下:

private void setRepeatingAsyncTask() {

    final Handler handler = new Handler();
    Timer timer = new Timer();

    TimerTask task = new TimerTask() {
        @Override
        public void run() {
            handler.post(new Runnable() {
                public void run() {
                    try {
                        new getArrivals().execute(station_id);
                    } catch (Exception e) {
                        // error, do something
                    }
                }
            });
        }
    };
    timer.schedule(task, 0, 30000);  // interval of 30 seconds
}

在AsyncTask将查询最新名单内容的数据库:

private class getArrivals extends AsyncTask<Long, Void, Long>{

        @Override
        protected void onPreExecute(){ …

我在尝试使用 Android 应用程序将照片保存到存储时遇到问题。该应用程序使用设备相机拍摄照片并将其以 PNG 格式保存到设备。

由于某种原因，无论我做什么或将图像存储在哪里，质量都很差。该应用程序是一个相当大的现有项目，因此我想知道将图像保存到设备时是否需要考虑其他因素，或者可能是另一种覆盖质量的方法。

这是以前的开发人员编写的函数：

public String saveImageToDevice(Bitmap image) {
    saveCanvasImage(image);

    String root = Environment.getExternalStorageDirectory().toString()+"/Android/data/com.app.android";
    File myDir = new File(root + "/saved_images");    
    myDir.mkdirs();

    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    String fname = "Image-"+ timeStamp +".png";
    File file = new File (myDir, fname);
    if (file.exists ()){ 
        file.delete ();
    } 
    try {




       Toast.makeText(getActivity(), "Saving Image...", Toast.LENGTH_SHORT).show();
       Log.i("Image saved", root+"/saved_images/"+fname);
       FileOutputStream out = new FileOutputStream(file);
       image.compress(CompressFormat.PNG, 100, out);
       imageLocations.add(fname);
       out.flush();
       out.close();


       //return myDir.getAbsolutePath() + "/" +fname;
       return fname;

    } catch (Exception …