如何在Android中将视图添加到自定义ListView？

如何解决如何在Android中将视图添加到自定义ListView？

| 我在具有progressbar的android活动中制作了自定义listview。在该列表视图的顶部，还有另一个进度条，该进度条显示当月的一天过去时的进度。现在我想根据自定义列表视图中具有四个进度条的月份进度条的进度设置一个条。请参阅所附图片。月份进度条的进度和我们放在列表视图进度栏中的进度条应位于同一位置，这意味着对齐，并且当顶部进度随着日期的过去而增加时，我们放置的此进度条应移动。在布局文件中，我使用了LinearLayout，我想将其放置在栏上。

<?xml version=\"1.0\" encoding=\"utf-8\"?>
<RelativeLayout xmlns:android=\"http://schemas.android.com/apk/res/android\"
android:layout_width=\"fill_parent\" android:layout_height=\"wrap_content\"
android:layout_marginTop=\"5dip\">
<RelativeLayout android:id=\"@+id/Top\"
    android:layout_centerHorizontal=\"true\" android:layout_width=\"250dip\"
    android:layout_height=\"wrap_content\">
    <TextView android:id=\"@+id/LeftText\" android:layout_width=\"wrap_content\"
        android:layout_height=\"wrap_content\" android:text=\"O\"
        android:textColor=\"#FFFFFF\" android:textStyle=\"normal\"
        android:layout_alignParentLeft=\"true\" />
    <RelativeLayout android:layout_width=\"wrap_content\"
        android:layout_height=\"wrap_content\" android:layout_alignParentRight=\"true\">
        <TextView android:id=\"@+id/TextOne\" android:layout_width=\"wrap_content\"
            android:layout_height=\"wrap_content\" android:text=\"O\"
            android:textColor=\"#FFFFFF\" android:textStyle=\"normal\"
            android:layout_marginRight=\"5dip\" />
        <TextView android:id=\"@+id/TextTwo\" android:layout_width=\"wrap_content\"
            android:layout_height=\"wrap_content\" android:text=\"@string/outof\"
            android:textColor=\"#FFFFFF\" android:textStyle=\"normal\"
            android:layout_toRightOf=\"@+id/TextOne\" android:layout_marginRight=\"5dip\" />
        <TextView android:id=\"@+id/RightText\" android:layout_width=\"wrap_content\"
            android:layout_height=\"wrap_content\" android:text=\"O\"
            android:textColor=\"#FFFFFF\" android:textStyle=\"normal\"
            android:layout_toRightOf=\"@+id/TextTwo\" />
    </RelativeLayout>
</RelativeLayout>
<RelativeLayout android:id=\"@+id/Bottom\"
    android:layout_below=\"@+id/Top\" android:layout_width=\"wrap_content\"
    android:layout_height=\"wrap_content\" android:layout_centerHorizontal=\"true\">
    <ProgressBar android:id=\"@+id/CustomPro\"
        android:layout_width=\"250dip\" android:layout_height=\"wrap_content\"
        android:progress=\"0\" android:max=\"100\" android:secondaryProgress=\"0\"
        style=\"?android:attr/progressBarStyleHorizontal\"
        android:progressDrawable=\"@drawable/accountdataprogress\"
        android:layout_centerHorizontal=\"true\" />
    <TextView android:id=\"@+id/MiddleText\" android:layout_width=\"wrap_content\"
        android:layout_height=\"wrap_content\" android:text=\"0%\"
        android:textColor=\"#000000\" android:textStyle=\"bold\"
        android:layout_centerHorizontal=\"true\" />
</RelativeLayout>
<RelativeLayout android:id=\"@+id/Middle\"
    android:layout_centerHorizontal=\"true\" android:layout_width=\"250dip\"
    android:layout_height=\"wrap_content\" android:layout_below=\"@+id/Top\">
    <LinearLayout android:layout_width=\"wrap_content\"
        android:layout_height=\"wrap_content\" android:id=\"@+id/PuttingBar\"
        android:layout_alignParentLeft=\"true\">
    </LinearLayout>
</RelativeLayout>
<View android:layout_width=\"fill_parent\" android:layout_height=\"10dip\"
    android:background=\"#00000000\" android:layout_below=\"@+id/Bottom\" />
</RelativeLayout>

在Java中，我已经做了类似的事情。

import java.util.ArrayList;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ProgressBar;
import android.widget.TextView;

public class Progresslistadapter extends BaseAdapter 
{
private Context mContext;
private ArrayList<ProgressList> mPList;
private TextView mLeft,mMiddle,mRight,mTextOne;
private ProgressBar mCustomProgressBar;
private LinearLayout mLinearLayout;

public Progresslistadapter(Context nContext,ArrayList<ProgressList> nPList) 
{
    this.mContext = nContext;
    this.mPList = nPList;
}

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

@Override
public Object getItem(int nPosition) 
{
    return mPList.get(nPosition);
}

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

@Override
public View getView(int position,View convertView,ViewGroup parent) 
{
    ProgressList mEntry = mPList.get(position);
    if (convertView == null) 
    {
        LayoutInflater mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = mInflater.inflate(R.layout.customprogress,null);
    }

    mLeft = (TextView) convertView.findViewById(R.id.LeftText);
    mLeft.setText(mEntry.getValueText());

    mMiddle = (TextView) convertView.findViewById(R.id.MiddleText);
    mCustomProgressBar = (ProgressBar) convertView.findViewById(R.id.CustomPro);
    int mBarPosition = Usage.mElapsed;

    mLinearLayout = (LinearLayout) convertView.findViewById(R.id.PuttingBar);
    View mView = new View(mContext);
    LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(2,25);
    layoutParams.setMargins(mBarPosition,0);
    mView.setMinimumHeight(25);
    mView.setMinimumWidth(2);
    mView.setBackgroundColor(Color.rgb(12,56,99));
    mLinearLayout.addView(mView,layoutParams);
    mView.invalidate();

    if(mEntry.getValueNumber() > mBarPosition)
    {
        mCustomProgressBar.setProgress(mBarPosition);
        mCustomProgressBar.setSecondaryProgress(mEntry.getValueNumber());
    }
    else if(mEntry.getValueNumber() <= mBarPosition)
    {
        mCustomProgressBar.setProgress((mEntry.getValueNumber()));
        mCustomProgressBar.setSecondaryProgress(0);
    }
    mMiddle.setText(Integer.toString(mEntry.getValueNumber()) + \"%\");

    mTextOne = (TextView) convertView.findViewById(R.id.TextOne);
    mTextOne.setText(mEntry.getValue());
    mRight = (TextView) convertView.findViewById(R.id.RightText);
    mRight.setText(mEntry.getValueOne());

    return convertView;
}
}

但是当我运行它时，它会在进度条中显示额外的条形任何人都做了工作，请帮我忙。等待卓有成效的答复。谢谢。

解决方法

您应该在getView函数中将呼叫添加到removeAllViews中：

mLinearLayout = (LinearLayout) convertView.findViewById(R.id.PuttingBar);
mLinearLayout.removeAllViews(); 
View mView = new View(mContext);

那是因为LinearLayout会累积视图，并且可能会多次调用addView函数。因此，您需要在添加具有新边距的另一个PuttingBar之前删除已添加的视图。