Question

我在申请中面临一种非常奇怪的行为问题是我的活动中有一个导航抽屉，但我需要在导航栏中显示不同的ListView：

<?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="wrap_content"
    android:orientation="vertical"
    android:gravity="top">

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent" android:layout_height="@dimen/nav_header_height"
        android:background="@drawable/side_nav_bar"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:theme="@style/ThemeOverlay.AppCompat.Dark" android:orientation="vertical"
        android:gravity="bottom">
        <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:src="@drawable/ic_logo" android:id="@+id/imageView" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="@string/lb_dashboard_menu"
            android:id="@+id/textView"
            android:textColor="@color/colorPrimaryDark" />
    </LinearLayout>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/menu_gateways"
        android:textColor="@color/text_color"
        android:gravity="center_vertical"
        android:paddingLeft="16dp"
        android:background="@color/background_clear" />
    <ListView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/lv_menu_gateway"
        android:minHeight="90dp"
        android:background="@color/background_accent" />
    <TextView
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/menu_options"
        android:textColor="@color/text_color"
        android:gravity="center_vertical"
        android:paddingLeft="16dp"
        android:background="@color/background_clear"
        android:paddingRight="16dp" />
    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/lv_menu_options"
        android:background="@color/background_accent" />
</LinearLayout>

正如您在上面的代码中看到的，问题是当我为第一个ListView加载适配器时，我试图调试它，方法getView()无限期地重复，没有任何明显的理由。< / p>

在第二个ListView中，我确定我传递了5个项目的列表，但是在调试时我发现位置始终为0。这就是为什么我只获得活动中列表的第一项。

public class ListGatewayAdapter extends BaseAdapter {

    protected List<Device> devices;
    private static LayoutInflater inflater;
    AppManager manager;

    public ListGatewayAdapter(Activity activity, List<Device> devices){
        this.devices = devices;
        inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        manager = AppManager.getManager(activity.getApplication());
    }

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

    @Override
    public Device getItem(int position) {
        return devices.get(position);
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = convertView;
        if(convertView == null)
            view = inflater.inflate(R.layout.gateway_cell, parent, false);
        TextView name = (TextView)view.findViewById(R.id.lb_gateway_name);
        TextView number = (TextView)view.findViewById(R.id.lb_gateway_number);
        ImageView status = (ImageView)view.findViewById(R.id.im_gateway_active);
        Device device = getItem(position);
        name.setText(device.getDeviceName());
        number.setText(device.getDeviceNumber());
        String lastDeviceConnected = manager.RetrieveSharedLastDeviceConnect();
        if(lastDeviceConnected != null){
            if(lastDeviceConnected.equals(device.getDeviceNumber()) ) {
                status.setColorFilter(Color.argb(0, 0, 0, 255));
            }else{
                status.setColorFilter(Color.argb(0, 0, 0, 0));
            }
        }
        return view;
    }
}

上面是第一个适配器的代码，第二个是与此非常相似的代码。

我希望有些人可以帮我找到解决这个问题的方法。

更新我在显示器中注意到我得到了这个：

10-29 15:23:07.330 8785-8785/com.realstatediary.jperera.rapidsentrymaster W/View: requestLayout() improperly called by android.widget.ListView{11445886 VFED.VC. .F....ID 0,540-888,810 #7f0c007c app:id/lv_menu_gateway} during layout: running second layout pass
10-29 15:23:07.370 8785-8785/com.realstatediary.jperera.rapidsentrymaster W/View: requestLayout() improperly called by android.widget.ListView{11445886 VFED.VC. ........ 0,540-888,810 #7f0c007c app:id/lv_menu_gateway} during second layout pass: posting in next frame

Answer 1

尝试将第一个ListView的布局宽度和高度更改为“match_parent”。

getView（）方法中自定义适配器ListView出错

1 个答案: