使用Arraylist将图标添加到Listview

Question

我已经成功创建了一个包含所有选项（文本）的列表视图。但是，我想在每个选项旁边添加唯一的图标。如何使用我的切除代码来执行此操作？

这是我想要实现的目标：

这是我的代码：AccountSettingsActivity.java

//All Options in Account Settings
private  void setupSettingsList(){
    ListView listView = findViewById(R.id.lvAccountSettings);

    ArrayList<String> options = new ArrayList<>();
    options.add(getString((R.string.editProfile)));
    options.add(getString(R.string.notifications));
    options.add(getString(R.string.privacy_settings));
    options.add(getString(R.string.security));
    options.add(getString(R.string.ads));
    options.add(getString(R.string.help));
    options.add(getString(R.string.about));
    options.add(getString(R.string.logout));

    ArrayAdapter adapter = new ArrayAdapter(mContext, R.layout.listview_row_adjustment, options);
    listView.setAdapter((adapter));
}

listview_row_adjustmnet.xml（这只是更改列表视图中选项的文本颜色和大小）

<TextView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/listViewAdjustment"
    android:layout_width="fill_parent"
    android:layout_height="50dp"
    android:textSize="17sp"
    android:gravity="fill"
    android:textColor="@color/white"/>

Answer 1

在/ res文件夹中创建数组：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <array name="images">
        <item>@drawable/img1</item>
        <item>@drawable/img2</item>
        <item>@drawable/img3</item>
    </array>

</resources>

更新帐户设置：

    //All Options in Account Settings
    private  void setupSettingsList(){
        ListView listView = findViewById(R.id.lvAccountSettings);

TypedArray images = getResources().obtainTypedArray(R.array.images);

        ArrayList<String> options = new ArrayList<>();
        options.add(getString((R.string.editProfile)));
        options.add(getString(R.string.notifications));
        options.add(getString(R.string.privacy_settings));
        options.add(getString(R.string.security));
        options.add(getString(R.string.ads));
        options.add(getString(R.string.help));
        options.add(getString(R.string.about));
        options.add(getString(R.string.logout));
    // add images to adapter
        ArrayAdapter adapter = new ArrayAdapter(mContext, R.layout.listview_row_adjustment, options, images);
        listView.setAdapter((adapter));
    }

在listview_row_adjustmnet.xml中添加图像视图

在适配器中设置图像：

imageView.setImageResource(images.getResourceId(i, -1));

Answer 2

使用带有标题和图标的数据模型，如下所示

class Data {

 public int imageId;
 public String txt;

 Data(Drawable imageId, String text) {

   this.imageId = imageId;
  this.txt = text;
}

}

Data menuItemSearch = new Data(ContextCompat.getDrawable(this, R.drawable.ic_search_orange), resources.getString(R.string.title))

并且在图像中设置为可绘制时，请使用此一个

yourImage.setImageDrawable(data.imageId)

Answer 3

首先，您必须添加您的listview_row_adjustmnet.xml。

<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/imageView"
    android:layout_gravity="center_horizontal|top"/>
<TextView
    android:id="@+id/listViewAdjustment"
    android:layout_width="fill_parent"
    android:layout_height="50dp"
    android:textSize="17sp"
    android:gravity="fill"
    android:textColor="@color/white"/>

对于代码AccountSettingActivity类：

private  void setupSettingsList(){
ListView listView = findViewById(R.id.lvAccountSettings);

ArrayList<String> options = new ArrayList<>();


options.add(getString((R.string.editProfile)));
options.add(getString(R.string.notifications));
options.add(getString(R.string.privacy_settings));
options.add(getString(R.string.security));
options.add(getString(R.string.ads));
options.add(getString(R.string.help));
options.add(getString(R.string.about));
options.add(getString(R.string.logout));
ArrayList<ImageView> images = new ArrayList<>();
//Please add Customized addapter 
}

对于定制适配器，您可以在此链接https://www.youtube.com/watch?v=_YF6ocdPaBg中找到帮助。

要在代码中设置ImageView，请参见此答案Using variable to change image in Java。