【问题标题】:How to display each element of an array in different textviews in an arraylist如何在arraylist中的不同文本视图中显示数组的每个元素
【发布时间】:2015-09-30 17:13:07
【问题描述】:

我正在创建一个安卓应用程序。我有一个如下所示的数组:

Array: {item1, item2, item3, item4, item5, item6, item7, item8, item9, item10.........};

我想在列表视图中显示这些项目。我的列表视图的结构应该如下所示:

row1: item1 item2 item3 item4 item5
row2: item6 item7 item8 item9 item10
row3: item11 .... .... ..... ...... etc

我尝试过使用数组适配器和基本适配器。我得到的每个项目的列表视图如下所示:

item1
item2
item3
item4
item5
item6
item7
item8
....

我试过的代码如下:

使用阵列适配器:

字符串数组是searchData

ArrayAdapter arrayAdapter = new ArrayAdapter(getApplicationContext(), R.layout.custom_search_row, R.id.textView3, searchData);
                mListView.setAdapter(arrayAdapter);

使用基本适配器:

 class SingleRow {
        String mFetchedData1;
//        String mFetchedData2;
//        String mFetchedData3;
//        String mFetchedData4;
//        String mFetchedData5;

        SingleRow(String mFetchedData1){
            this.mFetchedData1 = mFetchedData1;
//            this.mFetchedData2 = mFetchedData2;
//            this.mFetchedData3 = mFetchedData3;
//            this.mFetchedData4 = mFetchedData4;
//            this.mFetchedData5 = mFetchedData5;
        }
    }

    class MyAdapter extends BaseAdapter {

        ArrayList<SingleRow> list;
        Context context;

        MyAdapter(Context c){
            context = c;

            list = new ArrayList<SingleRow>();
            String[] mFetchedData = searchData;

            for (int i=0; i<4; i++){

                list.add(new SingleRow(mFetchedData[i]));

            }

        }

        @Override
        public int getCount() {
            return list.size();
        }

        @Override
        public Object getItem(int position) {
            return list.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

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

            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View row = inflater.inflate(R.layout.custom_search_row, parent, false);

            TextView title = (TextView) row.findViewById(R.id.textView3);


            SingleRow temp = list.get(position);
            title.setText(temp.mFetchedData1);



            return row;
        }
    }

mListView.setAdapter(new MyAdapter(getApplicationContext()));

我的单行列表视图如下图:

custom_row.xml:

<?xml version="1.0" encoding="utf-8"?>

<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"

    >


    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal">


        <TextView

            android:id="@+id/textView3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Small Text"
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:textColor="@color/colorPrimary" />

        <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Small Text"
        android:layout_marginLeft="20dp"
        android:layout_marginStart="20dp"
        android:id="@+id/textView4"
        />

        <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Small Text"
        android:layout_marginLeft="20dp"
        android:layout_marginStart="20dp"
        android:id="@+id/textView5" />

        <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Small Text"
        android:layout_marginLeft="20dp"
        android:layout_marginStart="20dp"
        android:id="@+id/textView6"
        />

        <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Small Text"
        android:layout_marginLeft="20dp"
        android:layout_marginStart="20dp"
        android:id="@+id/textView7"
        />
    </LinearLayout>

</HorizontalScrollView>

如果有人有任何想法,请帮助我。欢迎所有建议。如果您需要任何信息,请告诉我。

【问题讨论】:

  • 您可以选择@Muhammad 在回答中提到的GridLayout,也可以选择自定义适配器并使用列表/回收器视图查看。事实上,在回收站视图中,您也可以实现网格

标签: android arrays listview android-custom-view baseadapter


【解决方案1】:

尝试使用带有自定义列选项的 GridLayout。将您的 ListView 和 Adapter 更改为 GridView。

【讨论】:

    【解决方案2】:

    将自定义布局与 CustomAdapter 一起使用

    public class CustomAdapter extends BaseAdapter {
    
        Context context;
        String[] values;
        public static startposition=0;
        public CustomAdapter(Context context,String[] values) {
            this.context=context;
            this.values=values
        }
    
    
    
        @Override
        public View getView(int index, View view, final ViewGroup parent) {
    
            if (view == null) {
                LayoutInflater inflater = LayoutInflater.from(context);
                view = inflater.inflate(R.layout.custom_layout,parent, false);
            }
    
            TextView textView3= (TextView)view.findViewById(R.id.textView3);
            TextView textView4= (TextView)view.findViewById(R.id.textView4);
            TextView textView5 = (TextView) view.findViewById(R.id.textView5);
            TextView textView6= (TextView)view.findViewById(R.id.textView7);
            TextView textView7= (TextView)view.findViewById(R.id.textView7);
            if(position<values.length-5)
            {
            int i=position+startposition;
            startposition+=5;
            textView3.setText(values[i]);
             textView4.setText(values[i+1]);
              textView5.setText(values[i+2]);
             textView6.setText(values[i+3]);
             textView7.setText(values[i+4]);      
            }
    
            return view;
        }
    }
    

    【讨论】:

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