Question

已修改编辑：我已解决此问题。它实际上没有逻辑意义，但除了复选框之外的所有内容都必须是“Match_Parent”＃39;对于宽度和高度，不是＆＃39; Wrap_Content＆＃39; （看起来很奇怪）。

我在ListView切断文本中遇到自定义ArrayAdapter的问题。

一张图片胜过千言万语，所以这里是问题的图片：

enter image description here

正如你所看到的那样，第四条线正在被切断，在“裂缝”上。

以下是自定义适配器的代码：

public class CheckListAdapter extends ArrayAdapter<String>{

    private int rowPadding = (int) getContext().getResources().getDimensionPixelSize(R.dimen.adapter_mediumRowVPadding);
    private int medText = (int) getContext().getResources().getDimensionPixelSize(R.dimen.medium_text);

    private Map<String,Boolean> map = new HashMap<String, Boolean>();
    private List<String> content;

    // Strings incoming are converted to a LinkedHashSet before being used.
    // This ensures that the adapter content will not accidentally change,
    // and that there is only one copy of a given string per adapter.
    // A LinkedHashSet is a HashSet with a predictable iteration order.
    public CheckListAdapter(Context context, int resource, List<String> objects) {
        super(context, resource, new ArrayList<String>(new LinkedHashSet<String>(objects)));
    }
    public CheckListAdapter(Context context, List<String> objects) {
        this(context, android.R.layout.simple_list_item_1, objects);
    }
    public CheckListAdapter(Context context, String[] objects) {
        this(context, android.R.layout.simple_list_item_1, Arrays.asList(objects));
    }

    @Override
    public View  getView(final int position, View convertView, ViewGroup parent){
        LinearLayout row = new LinearLayout(this.getContext());
        row.setBackgroundResource(R.drawable.greenclicked_background);
        row.setLayoutParams(new AbsListView.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));

        final CheckBox check = new CheckBox(getContext());
        check.setButtonDrawable(R.drawable.gemsgreen_btn_check_holo_light);

        final TextView text = new TextView(getContext());
        LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, Gravity.FILL);
        text.setLayoutParams(params);
        text.setGravity(Gravity.TOP | Gravity.LEFT);
        final String item = this.getItem(position);

        if(!this.map.containsKey(item)){
            this.map.put(item, false);
        }
        else{
            boolean checked = map.get(item);
            check.setChecked(checked);
        }

        row.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                boolean checked = map.get(item);
                checked = !checked;
                map.put(item, checked); 
                check.setChecked(checked);
            }
        });

        text.setText(item);
        text.setMinLines(1);
        text.setMaxLines(10);
        row.addView(check);
        row.addView(text);
        row.setPadding(0, rowPadding, 0, rowPadding);


        return row;
    }

    public Map<String,Boolean> getResults(){
        return map;
    }

}

这是自定义ListView的代码：

public class NonScrollListView extends ListView {

    public NonScrollListView(Context context) {
        super(context);
    }
    public NonScrollListView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    public NonScrollListView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }
    @Override
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
            int heightMeasureSpec_custom = MeasureSpec.makeMeasureSpec(
                    Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
            super.onMeasure(widthMeasureSpec, heightMeasureSpec_custom);
            ViewGroup.LayoutParams params = getLayoutParams();
            params.height = getMeasuredHeight();    
    }
}

我一直在寻找这个问题的解决方案近一个小时了，我绝对没有运气。我尝试了许多使用不同重力和布局参数设置的不同方法，但没有任何方法使它看起来与截图中的外观有任何不同。

Answer 1

我认为你应该用xml定义每一行布局。例如： row.xml

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

    <CheckBox
        android:id="@+id/check"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center" />

    <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp" />

</LinearLayout>

在 getView（）方法中，您实现如下：

public View getView(int position, View convertView, ViewGroup parent) {

        ViewHolder holder = null;
        LayoutInflater inflater = (LayoutInflater) activity
                .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        // If holder not exist then locate all view from UI file.
        if (convertView == null) {
            // inflate UI from XML file
            convertView = inflater.inflate(R.layout.home_page_listview_items,
                    parent, false);
            // get all UI view
            holder = new ViewHolder(convertView);
            // set tag for holder
            convertView.setTag(holder);
        } else {
            // if holder created, get tag from view
            holder = (ViewHolder) convertView.getTag();
        }
  //continue your code here
}
 private static class ViewHolder {

        private Checkbox check;
        private TextView text;

        public ViewHolder(View view) {
            check = (ImageView) view.findViewById(R.id.check);
            text = (TextView) view.findViewById(R.id.text);
    }
}

希望这有帮助！

在ListView中的Custom ArrayAdapter中切断TextView

1 个答案: