Question

我在向布局添加TextView时遇到问题。有些地方显示其他人不？这是我生成TextView

的代码

tv = new TextView(c);
tv.setLayoutParams(lp);
findAndSetAttributes(tv);
tv.setTextSize(22);
tv.setTextColor(Color.BLACK);
if(!isEmpty());
tv.setText(getObjectsContent());
v = tv;
return v;

如果我解析这个XML文件，只显示第一个TextView，而另一个则不显示，但似乎TextView被添加到布局但不可见？我尝试setVisibility但没有任何反应。

<?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="fill_parent" >

    <LinearLayout
        android:id="@+id/linearLayout1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="128dp"
        android:layout_marginTop="57dp"
        android:orientation="vertical" >

        <EditText
            android:id="@+id/editText1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/linearLayout1"
            android:layout_alignParentLeft="true"
            android:layout_marginBottom="22dp"
            android:ems="10" >

            <requestFocus />
        </EditText>

        <!-- this TextView is displayed?? -->
        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/editText1"
            android:layout_alignBottom="@+id/editText1"
            android:layout_alignParentRight="true"
            android:layout_marginRight="21dp"
            android:text="TextView" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/editText1"
            android:layout_marginLeft="18dp"
            android:text="Large Text"
            android:textAppearance="?android:attr/textAppearanceLarge" />

        <Button
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBaseline="@+id/textView2"
            android:layout_alignBottom="@+id/textView2"
            android:layout_toRightOf="@+id/linearLayout1"
            android:text="Button" />

        <SeekBar
            android:id="@+id/seekBar1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_below="@+id/button1"
            android:layout_marginTop="36dp" />

        <TextView>
        </TextView>
    </LinearLayout>

</RelativeLayout>

修改这里是“绘制”视图的活动

    public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);     
    setContentView(R.layout.gui);

    layout = (LinearLayout) findViewById(R.id.linlayout);   




 //   setResult(RESULT_OK,newIntent);

}

public void drawGUI() {
    viewObjects = new View[MainActivity.xm.objects.size()];
    viewLayouts = new ViewGroup[MainActivity.xm.objects.size()];

    iterativAdd(layout,0);


}

public ViewGroup iterativAdd(ViewGroup root, int from) {
    guiObjects gobj;
    for(int i =from; i<MainActivity.xm.objects.size();i++) {
        gobj = new guiObjects(i);
        if(gobj.isLayout()) {
            layoutlist.add(MainActivity.xm.objects.get(i));
            root.addView(iterativAdd(gobj.makeLayout(this), i+1));
            break;
        }
        else {
            viewObjects[i] = gobj.makeObject(this);


            if(viewObjects[i]!= null) {
                root.addView(viewObjects[i]);
                Toast t = Toast.makeText(this, "Object added "+MainActivity.xm.objects.get(i), Toast.LENGTH_SHORT);
                t.show();
                continue;
            }
        }
    } 
    return root;


}

我的根布局，我添加其他布局是一个LinearLayout我不知道这是否是我的正确选择。但我无法弄清楚为什么Textview不可见???

任何想法？

动态添加的TextView不可见但隐藏其他元素

0 个答案: