小编Sat*_*tar的帖子

当我像下一个把值推到它时,我想要检索firebase生成的id

我想检索"-KGdKiPSODz7JXzlgl9J"这个id我为getKey()尝试的那个电子邮件,但它返回"用户",当用户获取值时,它将整个对象从id返回到个人资料图片,这不会让我得到它作为我的应用中的用户对象

怎么解决这个？

    Firebase users = myFirebaseRef.child("users");
    users.orderByChild("email").equalTo("z@m.com").addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {

            dataSnapshot.getKey();
            Log.d("User",dataSnapshot.getRef().toString());
            Log.d("User",dataSnapshot.getValue().toString());
        }

        @Override
        public void onCancelled(FirebaseError firebaseError) {

            Log.d("User",firebaseError.getMessage() );
        }
    });

在Glide 4.3的新版本中,我试图使用它,但每当我使用它时,它都会崩溃,无论我传递给它的上下文.

这是向我显示的错误

   java.lang.AbstractMethodError: abstract method "void com.bumptech.glide.module.RegistersComponents.registerComponents(android.content.Context, com.bumptech.glide.Glide, com.bumptech.glide.Registry)"

这是我试过的代码:

Glide.with(getApplicationContext()).
            load(url)
            .into(imageView);

和

   Glide.with(getContext()).
            load(url)
            .into(imageView);

它给了我那个警告

W/Glide: Failed to find GeneratedAppGlideModule. You should include an annotationProcessor compile dependency on com.github.bumptech.glide:compiler in your application and a @GlideModule annotated AppGlideModule implementation or LibraryGlideModules will be silently ignored

和gradle中的lib代码

compile 'com.github.bumptech.glide:glide:4.3.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.3.1'

Update1:​​Waring Solved By添加扩展AppGlideModule的类

import com.bumptech.glide.annotation.GlideModule;
import com.bumptech.glide.module.AppGlideModule;

@GlideModule
public final class MyAppGlideModule extends AppGlideModule {}

但同样的错误仍然存​​在

我在Firebase云消息传递中遇到问题，因为我仅在Firebase中使用过它，直到现在当我从Firebase的Notification压缩器发送通知时，都无法正常工作

我的build.gradle（项目）

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.0'
        classpath 'com.google.gms:google-services:4.2.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

我的build.gradle（App）

    apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
com.google.gms.googleservices.GoogleServicesPlugin.config.disableVersionCheck = true

android {
    compileSdkVersion 28
    buildToolsVersion "28.0.3" …

我正在尝试更新我的android工作室为最新版本稳定最近发布的2.2稳定从我当前的版本2.1.3在Ubuntu这显示上面的android工作室

完成之后它就关闭了android工作室,当再打开它时没有改变它仍然版本2.1.3

它发生了两次？如何解决这个问题,因为这是Ubuntu第一次更新？

我希望make成为全屏,并且适用于所有智能手机,这个代码部分创建了一个水平和垂直滚动的tablelayout,我也希望查看以布局为中心的edittext矩阵.谢谢

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
    WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.seconda);

    HorizontalScrollView HSC = new HorizontalScrollView(this);
    ScrollView VSC = new ScrollView(this);
    VSC.setBackgroundResource(R.drawable.lavagna_psd);

    tableLayout = new TableLayout(this);
    tableLayout.setGravity(Gravity.CENTER); 

    values = new EditText[3][3];

    for (int i = 0; i < 3; i++) {

      tableRow = new TableRow(this); 
      tableRow.setGravity(Gravity.CENTER);

      for (int j = 0; j < 3  ; j++) {
        values[i][j] = new EditText(this);
        values[i][j].setHint("r: " + (i) + " " + "c: " + (j));
        values[i][j].setPadding(10, 10, 10, 10);
        tableRow.addView(values[i][j]);
      }

      tableLayout.addView(tableRow); …

这是我的问题，同时进行如下所示的评论的新recyclerview，如下图所示

我的活动

public class ReviewsActivity extends AppCompatActivity {

   private ArrayList<Review> reviews;

   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_reviews);

      reviews = new Gson().fromJson(getIntent().getStringExtra("reviews"), new
            TypeToken<List<Review>>() {
            }.getType());
    setUpReviewsList();
   }


   void setUpReviewsList() {

     RecyclerView recyclerView = (RecyclerView) findViewById(R.id.rvReviews);
     ReviewsRvAdapter mAdapter = new ReviewsRvAdapter(this, reviews, true);
     recyclerView.setLayoutManager(new LinearLayoutManager(this));
     recyclerView.setAdapter(mAdapter);

     }

 } 

我的适配器

 public class ReviewsRvAdapter extends RecyclerView.Adapter<ReviewsRvHolder> 
 {

    private ArrayList<Review> reviews;
    private Context context;
    ReviewsRvHolder holder;
    private DatabaseReference mDatabase;
    boolean isActivity = false;
    // Provide a suitable constructor (depends on the kind …