android - 在 TableLayout Android 中的两个元素之间绘制自定义线

Question

我有一个 Activity ，其中的事件按时间线组织。但它看起来很难看。

我想像这样设计一个更漂亮的时间线。

有没有像我的例子那样在元素之间画线的简单方法或库？

<ScrollView
    android:layout_marginTop="10dp"
    android:layout_marginLeft="10dp"
    android:layout_width="fill_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/text_data"
    android:layout_above="@+id/button_trimite"
    android:id="@+id/scroll_timeline"
    android:layout_marginBottom="7dp"

    >
    <TableLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/timelineTable"

        >


    </TableLayout>
</ScrollView>

这是我的 xml。但是我的 TableLayout 是动态生成的，因为我需要对我的事件进行排序。

for (final Event e : events) {
        if(e.getDate().equals(dataComp)) {
            //tablerow with event entry
            final TableRow row = new TableRow(getActivity());

            row.setLayoutParams(new TableRow.LayoutParams(
                    TableRow.LayoutParams.MATCH_PARENT,
                    TableRow.LayoutParams.WRAP_CONTENT));

            if (indexForDrawable % 2 == 0)
                row.setBackgroundResource(R.drawable.marcaj_event_albastru);
            else
                row.setBackgroundResource(R.drawable.marcaj_event_portocaliu);

            TextView txtEvent = new TextView(getActivity());
            txtEvent.setText("    "+ e.getHour() +"-"+e.getType()+"-"+e.getTitle());
            txtEvent.setTextColor(Color.BLACK);
            txtEvent.setTextSize(TypedValue.COMPLEX_UNIT_DIP, trEvent);
            txtEvent.setTypeface(Typeface.create(tf, Typeface.BOLD));

            row.addView(txtEvent);
            row.setClickable(true);
            final String date = e.getDate(), hour = e.getHour(), title = e.getTitle(),
                    type = e.getType(), descriere = e.getDescriere();
            final int finalResource = resource;
            final int finalIndexForDrawable = indexForDrawable;
            row.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    row.setBackground(getActivity().getResources().getDrawable(finalResource));
                    showPopup2(date, hour, type, title, descriere, row, finalIndexForDrawable);
                }
            });


            timelineTable.addView(row, new TableLayout.LayoutParams(
                    TableLayout.LayoutParams.MATCH_PARENT,
                    TableLayout.LayoutParams.WRAP_CONTENT));
            indexForDrawable++;
        }
        else {
            //tablerow with date
            final TableRow row = new TableRow(getActivity());
            row.setLayoutParams(new TableRow.LayoutParams(
                    TableRow.LayoutParams.MATCH_PARENT,
                    TableRow.LayoutParams.WRAP_CONTENT));
            TextView txtEvent = new TextView(getActivity());

//txtEvent.setText("\n"+ dataSplit1[0]+months.indexOf(dataSplit1 1 )); txtEvent.setText("\n"+ e.getDate().substring(0, 5)); txtEvent.setTextSize(TypedValue.COMPLEX_UNIT_DIP, trDate); row.addView(txtEvent); timelineTable.addView(row, new TableLayout.LayoutParams( TableLayout.LayoutParams.MATCH_PARENT, TableLayout.LayoutParams.WRAP_CONTENT)); dataComp = e.getDate();

            //tablerow with event entry
            final TableRow row3 = new TableRow(getActivity());
            row3.setLayoutParams(new TableRow.LayoutParams(
                    TableRow.LayoutParams.MATCH_PARENT,
                    TableRow.LayoutParams.WRAP_CONTENT));

            if (indexForDrawable % 2 == 0)
                row3.setBackgroundResource(R.drawable.marcaj_event_albastru);
            else
                row3.setBackgroundResource(R.drawable.marcaj_event_portocaliu);
            TextView txtEvent3 = new TextView(getActivity());

            txtEvent3.setText("    "+ e.getHour() +"-"+e.getType()+"-"+e.getTitle());
            txtEvent3.setTextColor(Color.BLACK);
            txtEvent3.setTextSize(TypedValue.COMPLEX_UNIT_DIP, trEvent);
            txtEvent3.setTypeface(Typeface.create(tf, Typeface.BOLD));
            row3.addView(txtEvent3);
            row3.setClickable(true);
            final String date3 = e.getDate(), hour3 = e.getHour(), title3 = e.getTitle(),
                    type3 = e.getType(), descriere3 = e.getDescriere();

            timelineTable.addView(row3, new TableLayout.LayoutParams(
                    TableLayout.LayoutParams.MATCH_PARENT,
                    TableLayout.LayoutParams.WRAP_CONTENT));
            indexForDrawable++;
        }

Answer 1

您可能必须创建自己的自定义适配器，但我使用数组适配器供您引用。还为 ListView 提供项目布局，希望您能相应地管理您的代码。

items.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center_vertical" >

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent" >

        <View
            android:layout_width="2dp"
            android:layout_height="match_parent"
            android:layout_centerVertical="true"
            android:layout_marginLeft="10dp"
            android:background="@android:color/black" />

        <View
            android:id="@+id/view1"
            android:layout_width="7dp"
            android:layout_height="7dp"
            android:layout_centerVertical="true"
            android:layout_marginLeft="7dp"
            android:background="@drawable/dot" />
    </RelativeLayout>

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:padding="20dp"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>

dot.xml 这是一个可绘制对象

<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="oval" >

<stroke
    android:width="1dp"
    android:color="@android:color/black" />

<solid android:color="@android:color/white" />

在 Activity 中你可以像这样使用适配器:

list.setAdapter(new ArrayAdapter<String>(this, R.layout.item, R.id.textView1, items));

希望这对您有所帮助!