即使在调用 removeAllviews() 之后，我在删除视图时也面临问题。onclick textView 我正在将 textView 和 imageView 添加到布局中。下次当我单击 textView 时，先前存在的 textview 和 imageview 没有被删除，并且尽管调用了 removeAllViews()，但仍会附加新闻。
任何帮助表示赞赏。
代码是
活动代码
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.check);
content=(LinearLayout)findViewById(R.id.content);
today=(TextView)findViewById(R.id.today);
tomorrow=(TextView)findViewById(R.id.tomorrow);
today.setOnClickListener(new TextView.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//Toast.makeText(ToDo.this, "Before"+content.getChildCount(), Toast.LENGTH_LONG).show();
content.removeAllViews();
inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int id=0;
for (int idx = 0; idx < 4; idx++) {
id = idx + 1;
rel = (RelativeLayout) inflater.inflate(R.layout.data, null);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
params.setMargins(0, 50, 0, 0);
txt = (TextView) rel.findViewById(R.id.txt);
txt.setText("AAA"+idx);
img = (ImageView) rel.findViewById(R.id.img);
img.setImageResource(R.drawable.stub);
img.setId(id);
img.setOnClickListener(new ImageView.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(ToDo.this,"Selected" + v.getId(),Toast.LENGTH_LONG).show();
}
});
content.addView(rel, params);
}
content.setVisibility(View.VISIBLE);
Toast.makeText(ToDo.this, ""+content.getChildCount(), Toast.LENGTH_LONG).show();
}
});
tomorrow.setOnClickListener(new TextView.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//Toast.makeText(ToDo.this, "Before"+content.getChildCount(), Toast.LENGTH_LONG).show();
content.removeAllViews();
inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int id=0;
for (int idx = 0; idx < 4; idx++) {
id = idx + 1;
rel = (RelativeLayout) inflater.inflate(R.layout.data, null);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
params.setMargins(0, 50, 0, 0);
txt = (TextView) rel.findViewById(R.id.txt);
txt.setText("Tomo"+idx);
img = (ImageView) rel.findViewById(R.id.img);
img.setImageResource(R.drawable.stub);
img.setId(id);
img.setOnClickListener(new ImageView.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(ToDo.this,"Selected" + v.getId(),Toast.LENGTH_LONG).show();
}
});
content.addView(rel, params);
}
content.setVisibility(View.VISIBLE);
Toast.makeText(ToDo.this, ""+content.getChildCount(), Toast.LENGTH_LONG).show();
}
});
}
检查.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="250dp"
android:id="@+id/whiteboard"
android:layout_height="300dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp"
android:background="#FFFFFF" >
<Button
android:id="@+id/add"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="17dp"
android:layout_marginLeft="20dp"
android:text="Add" />
<View
android:id="@+id/bottomseperator"
android:layout_width="200dp"
android:layout_height="1dp"
android:layout_above="@+id/add"
android:layout_alignLeft="@+id/add"
android:layout_marginBottom="10dp"
android:background="#000000" />
<View
android:id="@+id/topseperator"
android:layout_width="220dp"
android:layout_height="1dp"
android:layout_marginTop="35dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:background="#000000" />
<TextView android:id="@+id/day"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="20dp"
android:layout_marginTop="8dp"
android:textSize="15sp"
android:text="Day :"/>
<TextView
android:id="@+id/today"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/day"
android:layout_alignBottom="@+id/day"
android:layout_toRightOf="@+id/day"
android:textSize="15sp"
android:text="Today /" />
<TextView
android:id="@+id/tomorrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/today"
android:layout_alignBottom="@+id/today"
android:layout_toRightOf="@+id/today"
android:textSize="15sp"
android:text="Tomorrow /" />
<TextView
android:id="@+id/custom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/tomorrow"
android:layout_alignBottom="@+id/tomorrow"
android:layout_toRightOf="@+id/tomorrow"
android:textSize="15sp"
android:text="Custom" />
<ScrollView android:id="@+id/contenntscroll"
android:layout_width="200dip"
android:layout_height="200dip"
android:layout_alignBottom="@+id/whiteboard"
android:layout_alignTop="@+id/whiteboard"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:layout_below="@+id/topseperator"
android:isScrollContainer="false"
android:scrollbars="none">
<LinearLayout
android:id="@+id/content"
android:layout_width="200dp"
android:layout_height="300dp"
android:layout_marginTop="30dp"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
</RelativeLayout>
</RelativeLayout>