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循环再造商眼中的通胀问题

宗安宁
2023-03-14

我在android中使用一个回收器视图来显示数据列表。我也在视图持有者类中使用链接预览。但是我的回收器视图没有显示任何数据,页面为空。

它显示出错误-

android.view.InflateException: Binary XML file line #0: Binary XML file line #0: Error inflating class <unknown>
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_marginRight="10dp"
    android:layout_marginLeft="10dp"
    android:layout_marginTop="10dp"
    android:layout_marginBottom="10dp"
    app:cardCornerRadius="10dp">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:padding="15dp"
        android:paddingBottom="15dp">
    <LinearLayout
        android:layout_marginTop="3dp"
        android:layout_marginBottom="3dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:paddingTop="5dp"
        android:paddingBottom="5dp"
        android:paddingRight="5dp"
        android:paddingLeft="5dp"
        android:baselineAligned="false">
        <LinearLayout
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical">
        <com.pkmmte.view.CircularImageView
            android:id="@+id/user_profile_image_view"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:gravity="center_vertical"
            android:src="@drawable/user_icon"
            android:adjustViewBounds="true"/>
        </LinearLayout>

        <LinearLayout
            android:layout_height="wrap_content"
            android:layout_width="0dp"
            android:layout_weight="4"
            android:orientation="vertical"
            android:layout_marginStart="15dp">
            <TextView
                android:id="@+id/post_user_name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="User Name"
                android:textStyle="bold"
                android:textColor="#000"
                android:padding="3dp"
                android:textSize="15sp"/>
            <TextView
                android:id="@+id/post_time"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Date"
                android:padding="3dp"
                android:textSize="12sp"/>
    </LinearLayout>
    </LinearLayout>
    <TextView
        android:id="@+id/post_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="User Text"
        android:padding="2dp"
        android:layout_marginEnd="10dp"
        android:layout_marginBottom="10dp"
        android:layout_marginStart="20dp"
        android:textColor="#000"
        android:textSize="13sp"
        android:visibility="gone"/>


    <FrameLayout
        android:id="@+id/media_frame_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:visibility="gone"
        >
        <com.google.android.youtube.player.YouTubeThumbnailView
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:src="@drawable/jellyfish"
            android:scaleType="fitXY"
            android:visibility="gone"/>
        <com.google.android.youtube.player.YouTubePlayerView
            android:id="@+id/media_youtube_player_view"
            android:visibility="gone"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            >
        </com.google.android.youtube.player.YouTubePlayerView>
        <ImageView
            android:id="@+id/media_video_image_view"
            android:layout_width="match_parent"
            android:layout_height="300dp"
            android:scaleType="fitXY"
            android:visibility="gone"
           />

        <VideoView
            android:id="@+id/media_video_view"
            android:layout_height="200dp"
            android:layout_width="match_parent"
            android:layout_gravity="center_horizontal"
            android:visibility="gone"

            />
        <ImageView
            android:id="@+id/media_image_view"
            android:layout_width="match_parent"
            android:layout_height="300dp"
            android:scaleType="fitXY"
            android:visibility="gone"
            />
        <ImageView
            android:id="@+id/video_play_button"
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:layout_gravity="center_horizontal|center_vertical"
            android:src="@drawable/video_play_button_black"
            android:visibility="gone"
            android:clickable="true"
            android:focusable="true" />
    </FrameLayout>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/link_textView"
        android:padding="10dp"
        android:textSize="15sp"
        android:background="#cdc9c9"
        android:clickable="true"
        android:layout_marginRight="10dp"
        android:layout_marginLeft="10dp"
        android:textColor="#000"
        android:visibility="gone"/>
    <android.support.v7.widget.CardView
        android:id="@+id/twitter_link_card_view"
        android:layout_height="150dp"
        android:layout_width="match_parent"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:visibility="gone"
        >
        <com.freesoulapps.preview.android.Preview
            android:id="@+id/link_preview"
            android:layout_width="match_parent"
            android:layout_height="fill_parent"
            android:padding="10dp"
            android:gravity="center_vertical"
            android:clickable="true"
            android:focusable="true">

        </com.freesoulapps.preview.android.Preview>
    </android.support.v7.widget.CardView>
    <View
        android:layout_width="fill_parent"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="5dp"
        android:layout_height="1dp"
        android:background="#CFD8DC" />

    <LinearLayout
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:layout_marginTop="5dp"
        android:orientation="horizontal"
        android:layout_marginRight="10dp"
        android:layout_marginLeft="10dp">
        <ImageView
            android:id="@+id/post_like_image_view"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:clickable="true"
            android:src="@drawable/like_heart_icon"
            android:padding="2dp"
            android:focusable="true" />
        <ImageView
            android:id = "@+id/post_liked_image_view"
            android:layout_width="0dp"
            android:clickable="true"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/like_blue_image_icon"
            android:padding="2dp"
            android:visibility="gone"
            android:focusable="true" />
        <ImageView
            android:id="@+id/post_comment_image_view"
            android:layout_width="0dp"
            android:clickable="true"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/comment_icon"
            android:padding="2dp"
            android:focusable="true" />
        <ImageView
            android:id="@+id/post_sharing_imageView"
            android:clickable="true"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/share_icon"
            android:padding="2dp"
            android:focusable="true" />
    </LinearLayout>
        <LinearLayout
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:orientation="vertical">
            <EditText
                android:id="@+id/comment_box"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/edit_text_style1"
                android:padding="5dp"
                android:layout_margin="10dp"
                android:visibility="gone"
                android:hint="Type your Comment"
                />

        </LinearLayout>

</LinearLayout>
</android.support.v7.widget.CardView>

public class AdapterRecyclerView extends RecyclerView.Adapter<MyViewHolder> implements  Preview.PreviewListener {
    private List<AllDataModel> allDataArrayList;
    private Context context;
    private int resource;
    Preview linkPreview;
    public  AdapterRecyclerView(TwitterDataTest allDataActivity, int custom_data_main_layout , List<AllDataModel> allDataArrayList) {
        this.context = allDataActivity;
        this.resource = custom_data_main_layout;
        this.allDataArrayList = allDataArrayList;
    }
    public  AdapterRecyclerView(FacebookDataActivity facebookDataActivity, int custom_data_main_layout , List<AllDataModel> allDataArrayList) {

        this.context = facebookDataActivity;
        this.resource = custom_data_main_layout;
        this.allDataArrayList = allDataArrayList;
    }
    public  AdapterRecyclerView(YoutubeDataActivity youtubeDataActivity, int custom_data_main_layout , List<AllDataModel> allDataArrayList) {
        this.context = youtubeDataActivity;
        this.resource = custom_data_main_layout;
        this.allDataArrayList = allDataArrayList;
    }


    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
        View itemView = LayoutInflater.from(parent.getContext())
                .inflate(resource, parent, false);
        linkPreview =   itemView.findViewById(R.id.link_preview);
        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(@NonNull final MyViewHolder myViewHolder, int position) {

        final AllDataModel allDataModel = allDataArrayList.get(position);
        //get values from dataModel
        final String username  = allDataModel.getUsername();
        myViewHolder.UserName.setText(allDataModel.getUsername());

        myViewHolder.PostTime.setText(allDataModel.getPost_creation_time());
        String post_time = allDataModel.getPost_creation_time();
        String post_text = allDataModel.getPost_text();
        String status_type = allDataModel.getStatus_type();
        final String link_Title = allDataModel.getLink_title();
        if(status_type != null) {
            Log.e("#444", status_type);
        }

// setting source images
        final String source = allDataModel.getSource();
        String profileimageURL = allDataModel.getProfile_image_url();
        String PostImageURL = allDataModel.getPost_image_url();
        String postThuumbnailImageURL = allDataModel.getPost_video_thumbnail();
        final String videoId = allDataModel.getVideo_id();
        final String VideoUrl = allDataModel.getPost_video();
        final String link_url = allDataModel.getLink_url();
        if(profileimageURL != null){
            Picasso.with(getContext()).load(profileimageURL).into(myViewHolder.profileCircularImage);

        }

        if(post_text != null){
            myViewHolder.PostText.setVisibility(View.VISIBLE);
            myViewHolder.PostText.setText(allDataModel.getPost_text());
        }
        if(PostImageURL !=  null){
            myViewHolder.mediaFrameLayout.setVisibility(View.VISIBLE);
            myViewHolder.postMediaImage.setVisibility(View.VISIBLE);
            Picasso.with(getContext()).load(PostImageURL).into( myViewHolder.postMediaImage);
        }
        if(postThuumbnailImageURL != null) {
            myViewHolder.mediaFrameLayout.setVisibility(View.VISIBLE);
            myViewHolder.postVideoThumbnailImage.setVisibility(View.VISIBLE);
            Picasso.with(getContext()).load(PostImageURL).into( myViewHolder.postMediaImage);
            Picasso.with(getContext()).load(postThuumbnailImageURL).into( myViewHolder.postVideoThumbnailImage);
            myViewHolder.play_button_image.setVisibility(View.VISIBLE);
            if(videoId != null) {
                myViewHolder.mediaFrameLayout.setVisibility(View.VISIBLE);
                myViewHolder.play_button_image.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        myViewHolder.postMediaImage.setVisibility(View.GONE);
                        myViewHolder.play_button_image.setVisibility(View.GONE);
                        myViewHolder.postVideoThumbnailImage.setVisibility(View.GONE);


                        Intent youtubePlayerIntent = new Intent((Activity)context, YoutubePlayerActivity.class);
                        youtubePlayerIntent.putExtra("video_id", videoId);
                        context.startActivity(youtubePlayerIntent);

                    }
                }
                );

            }

            if (VideoUrl != null) {
                myViewHolder. play_button_image.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        myViewHolder.postVideoThumbnailImage.setVisibility(View.GONE);
                        myViewHolder.play_button_image.setVisibility(View.GONE);
                        myViewHolder.postVideoView.setVisibility(View.VISIBLE);
                        try {
                            MediaController mediaController = new MediaController(getContext());
                            mediaController.setAnchorView( myViewHolder.postVideoView);
                            Uri video = Uri.parse(VideoUrl);
                            myViewHolder.postVideoView.setMediaController(mediaController);
                            myViewHolder.postVideoView.setVideoURI(video);
                            myViewHolder.postVideoView.requestFocus();
                            myViewHolder.postVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                                public void onPrepared(MediaPlayer mp) {
                                    myViewHolder.postVideoView.start();
                                }
                            });
                        } catch (Exception e) {
                            Log.e("Video Play Error :" , e.toString());
                        }
                    }
                });

            }
            if(status_type != null){
                if(status_type.equals("album") || status_type.equals("share") && source.equals("facebook")){
                    Log.e("STA2",status_type);
                    myViewHolder.play_button_image.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            myViewHolder. play_button_image.setVisibility(View.GONE);
                            myViewHolder.postVideoThumbnailImage.setVisibility(View.GONE);
                            Intent webViewIntent = new Intent(context, WebViewActivity.class);
                            webViewIntent.putExtra("link_url", link_url);
                            context.startActivity(webViewIntent);
                        }
                    });
                }

            }

        }

        if(status_type != null){
            if(status_type.equals("share") && source.equals("twitter") && link_Title!=null ){
                myViewHolder.linkCardView.setVisibility(View.VISIBLE);
                myViewHolder.linkPreview.setData(link_Title);
                myViewHolder.linkPreview.setListener((Preview.PreviewListener) this);
                myViewHolder.linkPreview.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        Intent webViewIntent = new Intent(context, WebViewActivity.class);
                        webViewIntent.putExtra("link_url", link_Title);
                        context.startActivity(webViewIntent);
                    }
                });

            }



        }

        myViewHolder.shareutton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final Dialog dialog = new Dialog(context);
                dialog.setContentView(R.layout.share_dialogue);
                dialog.show();
                Button fbShareBtn = (Button)dialog.findViewById(R.id.share_facebook_button);
                Button twitterShareBtn = (Button)dialog.findViewById(R.id.share_twitter_button);
                Button cancel = (Button)dialog.findViewById(R.id.cancel_share);
                final String link_url = allDataModel.getLink_url();
                fbShareBtn.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        Intent facebookIntent = new Intent(context, FacebookLoginActivity.class);
                        facebookIntent.putExtra("link_url", link_url);
                        facebookIntent.putExtra("source", source);
                        context.startActivity(facebookIntent);
                    }
                });
                twitterShareBtn.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        Intent twitterLoginIntent = new Intent(context, MainActivity.class);
                        twitterLoginIntent.putExtra("link_url", link_url);
                        context.startActivity(twitterLoginIntent);
                    }
                });

                cancel.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        dialog.dismiss();
                    }
                });
            }
        });
        myViewHolder.postComment.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myViewHolder.commentET.setVisibility(View.VISIBLE);
            }
        });

        myViewHolder.postLike.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myViewHolder.postLiked.setVisibility(View.VISIBLE);
                myViewHolder.postLike.setVisibility(View.GONE);

            }
        });
        myViewHolder.postLiked.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myViewHolder. postLike.setVisibility(View.VISIBLE);
                myViewHolder.postLiked.setVisibility(View.GONE);
            }
        });
    }

    @Override
    public int getItemCount() {
        return  allDataArrayList.size();

    }


@Override
public void onDataReady(Preview preview) {
    linkPreview .setMessage(preview.getLink());
}

}   
public class TwitterDataTest extends AppCompatActivity {
    RecyclerView recyclerView;
    AdapterRecyclerView adapterRecyclerView;
    public List<AllDataModel> allDataArrayList;
    ProgressDialog pd;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_twitter_test);
        allDataArrayList = new ArrayList<>();
        recyclerView = findViewById(R.id.twitter_recycler_view);
        recyclerView.setHasFixedSize(true);
        pd = new ProgressDialog(this);
        pd.setTitle("Loading......");
        pd.show();
        if(isOnline()){
            Api apiService =
                    ApiClient.getClient().create(Api.class);
            Call<ResponseBody> call = apiService.getTwitterData();
            call.enqueue(new Callback<ResponseBody>() {
                @Override
                public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                    if(response.isSuccessful()){
                        try {
                            assert response.body() != null;
                            String s = response.body().string();
                            LoadIntoListView(s);
                            recyclerView.setAdapter(adapterRecyclerView);
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                    else{
                        Toast.makeText(TwitterDataTest.this, "No response", Toast.LENGTH_SHORT).show();
                    }

                }
                @Override
                public void onFailure(Call<ResponseBody> call, Throwable t) {

                }
            });

        }
        else{
            Toast.makeText(TwitterDataTest.this, "Please check your internet connection", Toast.LENGTH_LONG).show();
        }
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(linearLayoutManager);
        recyclerView.setItemAnimator(new DefaultItemAnimator());
        adapterRecyclerView = new AdapterRecyclerView(TwitterDataTest.this, R.layout.custom_data_main_layout, allDataArrayList);
         adapterRecyclerView.notifyDataSetChanged();
        recyclerView.setAdapter(adapterRecyclerView);

    }


    public void LoadIntoListView(String s) {
        pd.dismiss();

        try {
            JSONArray jsonArray1 = new JSONArray(s);
            int ja1length = jsonArray1.length();

            for (int i = 0; i < ja1length; i++) {
                String source = "twitter";
                String videoThumbnailImageUrl = null;
                String TweetVideoUrl = null;
                String TweetImageUrl = null;
                String expanded_url = null;
                String url = null;
                String link_url = null;

                JSONObject jsonObject1 = jsonArray1.getJSONObject(i);
                //    String TweetTime = jsonObject1.getString("created_at");
                String TweetText = jsonObject1.getString("full_text");
                String id = jsonObject1.getString("id");
                link_url = "https://twitter.com/AmritDki/status/" + id;


                String createdTime = jsonObject1.getString("created_at");
                final String TWITTER = "EEE MMM dd HH:mm:ss ZZZZZ yyyy";
                SimpleDateFormat sf = new SimpleDateFormat(TWITTER);

                sf.setLenient(true);
                String TwitterCreationDateIST = String.valueOf(sf.parse(createdTime));

                SimpleDateFormat formatter;
                formatter = new SimpleDateFormat("dd-M-yyyy hh:mm:ss a");
                String dateIST_customFormat = formatter.format(sf.parse(createdTime));


                if (TweetText.contains("http") == true) {
                    int index = TweetText.indexOf("https");
                    TweetText = TweetText.substring(0, index );
                }
                // user json object
                JSONObject userJO = jsonObject1.getJSONObject("user");
                String UserName = userJO.getString("name");
                String ScreenName = userJO.getString("screen_name");
                String ProfileImageUrl = userJO.getString("profile_image_url_https");



                // getting entities object
                if (jsonObject1.has("extended_entities")) {

                    JSONObject ExtendedEntitiesJO = jsonObject1.getJSONObject("extended_entities");
                    ///////
                    JSONArray MediaJA = ExtendedEntitiesJO.getJSONArray("media");
                    for (int j = 0; j < MediaJA.length(); j++) {
                        JSONObject insideMediaJO = MediaJA.getJSONObject(j);

                        if (insideMediaJO.has("video_info")) {
                            videoThumbnailImageUrl = insideMediaJO.getString("media_url_https");
                            JSONObject VideoInfoJO = insideMediaJO.getJSONObject("video_info");
                            JSONArray variantsArray = VideoInfoJO.getJSONArray("variants");
                            JSONObject videoUrlJO = variantsArray.getJSONObject(0);
                            TweetVideoUrl = videoUrlJO.getString("url");
                            //allDataArrayList.add(new TwitterDataModel(ProfileImageUrl, UserName,TweetVideoUrl, TweetImageUrl, TweetText));
                            allDataArrayList.add(new AllDataModel(source, UserName, ProfileImageUrl,
                                    TweetText, TweetImageUrl, videoThumbnailImageUrl, TweetVideoUrl, dateIST_customFormat, null,link_url,null, null));
                        } else {
                            TweetImageUrl = insideMediaJO.getString("media_url_https");
                            allDataArrayList.add(new AllDataModel(source, UserName, ProfileImageUrl,
                                    TweetText, TweetImageUrl, videoThumbnailImageUrl, TweetVideoUrl, dateIST_customFormat, null,link_url,null, null));
                        }

                    }
                }

                else{

                    JSONObject entitiesJO = jsonObject1.getJSONObject("entities");
                    if(entitiesJO.has("urls")){
                        JSONArray urlsArray = entitiesJO.getJSONArray("urls");
                        if(urlsArray.length() > 0){
                            JSONObject insideUrlsJO = urlsArray.getJSONObject(0);
                            if(insideUrlsJO.has("expanded_url")){
                                expanded_url = insideUrlsJO.getString("expanded_url");
                                allDataArrayList.add(new AllDataModel(source, UserName, ProfileImageUrl,
                                        TweetText, TweetImageUrl, videoThumbnailImageUrl, TweetVideoUrl, dateIST_customFormat,
                                        null,link_url, "share",expanded_url));
                            }

                        }else{
                            allDataArrayList.add(new AllDataModel(source, UserName, ProfileImageUrl,
                                    TweetText, TweetImageUrl, videoThumbnailImageUrl, TweetVideoUrl, dateIST_customFormat,
                                    null,link_url, null,null
                            ));

                        }

                    }
                }
                Log.e("#**", String.valueOf(allDataArrayList.size()));
               // adapterRecyclerView = new AdapterRecyclerView(TwitterDataTest.this, R.layout.custom_data_main_layout, allDataArrayList);
              //  adapterRecyclerView.notifyDataSetChanged();
                //recyclerView.setAdapter(adapterRecyclerView);
            }


        } catch (JSONException e) {
            e.printStackTrace();
        } catch (ParseException e) {
            Log.e("parsingError", String.valueOf(e));
        }

    }

共有1个答案

房学
2023-03-14

在投入3-4个小时后,我得到了我的问题的解决方案。我使用getContext()而不是context(通过构造函数)来膨胀布局。

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  • 我尝试使用Reform2执行recyclerView,但我在代码中执行了:recyclerView适配器构造函数,并且我在此行的MainActivity部分中得到了一个错误-“(flowersList,this)”:我得到了错误:列出匿名Reform2。回调函数 我的代码我的主要活动是: RecycleServiceWFlowerAdapter中的代码是: } 我在RecycleServiceWh

  • 我是java的新手,我正在编写这个简短的程序,您可以在其中猜测1到10之间的数字。正确的数字存储为整数。如果您猜测较低的数字,它应该说“正确的数字较高”,如果您猜测较高,它应该说“正确的数字较低”。这是我所拥有的: 所以很明显这是行不通的,因为如果你输入一个更小的数字,它会跳到下一个数字,即使这个数字更大,它也是正确的。那么,我如何解决这个问题,让它检查两个语句呢?抱歉解释得不好。谢了。

  • 我想在点击recyclerview项目时更新Imageview的图像。下面我发布了我的布局截图: 小图像在recycler视图中,大绿色图像在recycler视图之外。 }//这是活动类 } 我想,当用户点击任何回收器视图时,图像意味着小图像,它将显示在回收器视图之外的大图像视图中。

  • 我试图建立一个简单的Twitter提要应用程序,但我很难实现刷新功能。 以及getlatesttweets函数 这就是我遇到的问题 1) 中的x(全局变量,未在任何其他位置使用)的值。然后(函数(数据)似乎与循环中的其他任何地方不同,并且似乎没有增加。我尝试使用$scope.x或将其作为循环中的函数变量。如果我在tweetsarray中将其硬编码为仅刷新[0],则刷新有效,但[x]返回一个单独的值

  • 问题内容: 为了在用户单击“清除按钮”时初始化a上的所有,我需要遍历(而不是将所有单个字段都设置为“”)。 我如何使用for-each循环来遍历s的搜索? 问题答案: 但是,如果您具有更深层嵌套的JTextField,则可以使用以下递归形式: 编辑: Tom Hawtin的 一个样本 -粗线 建议将在您的框架班级中列出: 并在初始化单个文本字段时,将它们添加到此列表中: 当用户单击清除按钮时,只需