Question

我从服务器接收一些图标和文本使用json字符串，但是存在一些图标显示非常大且一些小的问题。我希望所有图标都显示小尺寸，列表视图中不应该是大图标。

这是我的custom_adapter xml。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout_mainID"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="tipster.Tipster_adapter" >

<ImageView
    android:id="@+id/icon_tipsterIconID"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/ic_launcher" />

<LinearLayout
    android:id="@+id/llot1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="20dp"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/txt_name_tipsterID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/str_text11" />

    <TextView
        android:id="@+id/txt_total_tipsterID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:id="@+id/txt_proofinglink_tipsterID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="View Proofing"
        android:textColor="#219BCC"
        android:textColorLink="#6D7578" />

    <TextView
        android:id="@+id/txt_sitelink_tipsterID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Get More Detail"
        android:textColor="#219BCC" />

</LinearLayout>

这是我的Tipster_adapter.java代码

package tipster;
 //import

public class Tipster_adapter extends BaseAdapter {
Context context;
ArrayList<Tipster_list>tipslist;
@SuppressLint("Instantiatable")
 public Tipster_adapter(Context context, ArrayList<Tipster_list> tipslist) {
    super();
    this.context = context;
    this.tipslist = tipslist;
}

@Override
public int getCount() {
    // TODO Auto-generated method stub
    return tipslist.size();
}

@Override
public Object getItem(int position) {
    // TODO Auto-generated method stub
    return position;
}

@Override
public long getItemId(int position) {
    // TODO Auto-generated method stub
    return position;
}

private class ViewHolder {
    public ImageView icon;
    public TextView name;
    public TextView total;
    public TextView proofingLink;
    public TextView siteLink;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder;

    if(convertView==null){
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.activity_tipster_adapter,null);
        holder = new ViewHolder();
        holder.icon = (ImageView) convertView.findViewById(R.id.icon_tipsterIconID);
        holder.name = (TextView) convertView.findViewById(R.id.txt_name_tipsterID);
        holder.total = (TextView) convertView.findViewById(R.id.txt_total_tipsterID);
        holder.proofingLink = (TextView) convertView.findViewById(R.id.txt_proofinglink_tipsterID);
        holder.proofingLink.setFocusable(true);
        holder.proofingLink.requestFocus();
        holder.siteLink = (TextView) convertView.findViewById(R.id.txt_sitelink_tipsterID);
        convertView.setTag(holder);
    } else {
        holder = (ViewHolder) convertView.getTag();
    }

    Tipster_list services=tipslist.get(position);
    Picasso.with(context).load(services.getImage()).into(holder.icon);
    Log.d("Url",services.getImage());
    holder.name.setText(services.getName());
    holder.total.setText(services.getTotal());

    final String getproofing=services.getProofinglink();
    final String getsite=services.getSitelink();
    holder.proofingLink.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Intent intent = new Intent(context, Tipster_webview.class);
             intent.putExtra("gettproofing_URl",getproofing);
            context.startActivity(intent);
            //Toast.makeText(context, "proofing...", Toast.LENGTH_SHORT).show();

        }
    });
    holder.proofingLink.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            // TODO Auto-generated method stub

            switch(event.getAction()){            
            case MotionEvent.ACTION_DOWN:
            ((TextView)v).setTextColor(Color.parseColor("#A2B4BA")); //dark
                break;          
            case MotionEvent.ACTION_CANCEL:             
            case MotionEvent.ACTION_UP:
            ((TextView)v).setTextColor(Color.parseColor("#219BCC")); //Light-blue
                break;
            } 
            return false;
        }
    });

    holder.siteLink.setOnClickListener(new View.OnClickListener() {

                    @Override
                    public void onClick(View v) {
                        // TODO Auto-generated method stub
                        Intent intent = new Intent(context, Tipster_webview.class);
                         intent.putExtra("site",getsite);
                        context.startActivity(intent);
                    }
                });

    holder.siteLink.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            // TODO Auto-generated method stub

            switch(event.getAction()){            
            case MotionEvent.ACTION_DOWN:
            ((TextView)v).setTextColor(Color.parseColor("#A2B4BA")); //dark
                break;          
            case MotionEvent.ACTION_CANCEL:             
            case MotionEvent.ACTION_UP:
            ((TextView)v).setTextColor(Color.parseColor("#219BCC")); //Light-blue
                break;
            } 
            return false;
        }
    });



    return convertView;
 }
}

Answer 1

将布局高度和宽度参数从包装内容更改为固定值。换行内容将选择输入图像的高度和宽度，这将是随机的，多种尺寸的原因。：）

Answer 2

这是因为您要将ImageView上的图像高度和宽度设置为wrap_content，这会使ImageView与您提供的图像一样大或小。

如果您希望它们具有固定的宽度和高度，您应该为ImageView提供固定的宽度和高度。

<!--I would probably use a dimen resource to define the value 24dp-->
<ImageView
    android:id="@+id/icon_tipsterIconID"
    android:layout_width="24dp"
    android:layout_height="24dp"  
    android:src="@drawable/ic_launcher" />

为什么listview会收到一些大图标和一些小图标？

2 个答案: