android - 如何使用来自arraylist listview的bundle传递图像到详细活动

Question

我想将 ArrayList 中的图像传递到详细信息活动中，我正在使用此代码但图像未加载

这是我的 MainActivity

package com.example.latihanlist;

        import androidx.appcompat.app.AppCompatActivity;

        import android.content.Intent;
        import android.os.Bundle;
        import android.view.View;
        import android.view.ViewStub;
        import android.widget.AdapterView;
        import android.widget.ListView;
        import android.widget.Toast;
        import java.util.ArrayList;
        import java.util.List;


public class MainActivity extends AppCompatActivity {
    private ViewStub stubList;
    private ListView listview;
    private ListViewArrayAdapter listViewArrayAdapter;
    private List<Artikel> artikelList;

    private List<Artikel> getArtikelList() {
        artikelList= new ArrayList<>();
        artikelList.add(new Artikel(R.drawable.mob,"Title 1","1 hours ago","Descriptions of text 1"));
        artikelList.add(new Artikel(R.drawable.mob,"Title 2","1 hours ago","Descriptions of text 2"));
        artikelList.add(new Artikel(R.drawable.mob,"Title 3","1 hours ago","Descriptions of text 3"));
        artikelList.add(new Artikel(R.drawable.mob,"Title 4","1 hours ago","Descriptions of text 4"));
        artikelList.add(new Artikel(R.drawable.ic_launcher_background,"Title 5","1 hours ago","Descriptions of text 5"));
        artikelList.add(new Artikel(R.drawable.mob,"Title 6","1 hours ago","Descriptions of text 6"));
        artikelList.add(new Artikel(R.drawable.ic_launcher_background,"Title 7","1 hours ago","Descriptions of text 7"));
        artikelList.add(new Artikel(R.drawable.ic_launcher_background,"Title 8","1 hours ago","Descriptions of text 8"));
        artikelList.add(new Artikel(R.drawable.ic_launcher_background,"Title 9","1 hours ago","Descriptions of text 9"));
        artikelList.add(new Artikel(R.drawable.ic_launcher_background,"Title 10","1 hours ago","Descriptions of text 10"));
        return artikelList;
    }

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

        setContentView(R.layout.activity_main);
        stubList=(ViewStub) findViewById(R.id.stublist);
        stubList.inflate();
        listview=(ListView) findViewById(R.id.list_view);
        stubList.setVisibility(View.VISIBLE);

        getArtikelList();
        listViewArrayAdapter=new
                ListViewArrayAdapter(this,R.layout.list_item,artikelList);
        listview.setAdapter(listViewArrayAdapter);



        listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


                Bundle bundle = new Bundle();
                bundle.putString("data1", artikelList.get(position).getTitle().toString());
                bundle.putInt("data2", artikelList.get(position).getImageId());

                Intent intent = new Intent(MainActivity.this, DetailBerita.class);
                intent.putExtras(bundle);
                startActivity(intent);

            }
        });

    }

}

这是我的艺术课

package com.example.latihanlist;

public class Artikel {
    private int imageId;
    private String title;
    private String timestamp;
    private String descriptions;

    public Artikel(int imageId, String title, String timestamp, String
            descriptions) {
        this.imageId = imageId;
        this.title = title;
        this.timestamp = timestamp;
        this.descriptions = descriptions;
    }
    **public int getImageId() {
        return imageId;
    }**
    public void setImageId(int imageId) {
        this.imageId = imageId;
    }
    public String getTitle() {
        return title;
    }
    public void setTitle(String title) {
        this.title = title;
    }
    public String getTimestamp() {
        return timestamp;
    }
    public void setTimestamp(String timestamp) {
        this.timestamp = timestamp;
    }
    public String getDescriptions() {
        return descriptions;
    }
    public void setDescriptions(String descriptions) {
        this.descriptions = descriptions;
    }
}

这是详细活动类

  package com.example.latihanlist;

    import android.os.Bundle;
    import android.widget.ImageView;
    import android.widget.TextView;

    import androidx.appcompat.app.AppCompatActivity;

    public class DetailBerita extends AppCompatActivity {

        ImageView mImageView;

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

            TextView tvData1 = (TextView) findViewById(R.id.detail_title1);
            TextView tvData2 = (TextView) findViewById(R.id.detail_title);
            mImageView = (ImageView) findViewById(R.id.imageView2);

            Bundle bundle = getIntent().getExtras();
            tvData2.setText(bundle.getString("data1"));
            mImageView .setImageResource(bundle.getInt("data2"));


        }

    }

这是详细布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="match_parent"
        android:id="@+id/detail_title"
        android:layout_height="match_parent"
        />

    <TextView
        android:layout_width="match_parent"
        android:id="@+id/detail_title1"
        android:layout_height="match_parent"
        />
    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_below="@+id/toolbar2"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="10dp"/>
</LinearLayout>

我使用 ArrayList 来显示数据，并使用 int 设置图像，并尝试使用 bundle 将数据传递给其他活动。但这只是 textView 中显示的 data1 并且未加载 Imageview 。请帮助我更正此代码。

标签： androidarraylistandroid-activitybundle

Answer 1

mImageView 和 .setImageResource 之间有一个空格。删除它并检查一下