标签: android-inflate

我在我的应用程序中使用DrawerNavigator.我创建了一个Android应用程序,它与android 4.2完美配合,但当我尝试在Android 2.2中启动它时,我收到此错误:

android.view.InflateException: Binary XML file line #1: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:518)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:332)
at android.widget.ArrayAdapter.getView(ArrayAdapter.java:323)
at android.widget.AbsListView.obtainView(AbsListView.java:1582)
at android.widget.ListView.makeAndAddView(ListView.java:1801)
at android.widget.ListView.fillDown(ListView.java:724)
at android.widget.ListView.fillFromTop(ListView.java:781)
at android.widget.ListView.layoutChildren(ListView.java:1638)
at android.widget.AbsListView.onLayout(AbsListView.java:1412)
at android.view.View.layout(View.java:7175)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:672)
at android.view.View.layout(View.java:7175)
at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
at android.view.View.layout(View.java:7175)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1254)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1130)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1047)
at android.view.View.layout(View.java:7175)
at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
at android.view.View.layout(View.java:7175)
at android.widget.FrameLayout.onLayout(FrameLayout.java:338)
at android.view.View.layout(View.java:7175)
at android.view.ViewRoot.performTraversals(ViewRoot.java:1146)
at android.view.ViewRoot.handleMessage(ViewRoot.java:1866)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3687)

编辑:这些行也在那里:

07-22 16:00:52.111: E/AndroidRuntime(470): Caused …

我有这个main.xml布局,它有一个固定的页眉和页脚.身体内容必须根据收到的参数进行更改.

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:background="#FFFFFF"
    android:id="@+id/main_view">
    <com.HeaderView
        android:id="@+id/HeaderView"
         android:layout_alignParentTop="true"
        android:layout_width="fill_parent" android:layout_height="wrap_content" />
    <com.FooterView
        android:id="@+id/FooterView"
        android:layout_alignParentBottom="true" android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <RelativeLayout android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:id="@+id/BodyView"
        android:layout_below="@id/HeaderView"
        android:layout_above="@id/FooterView"/>
</RelativeLayout>

基于以下条件,我需要在main.xml中加载BodyView.

If parameter == Apple 
  then load layout AppleView in the BodyView
if parameter == Bat
  then load layout BatView in the BodyView

我定义了AppleView和BatView xml布局.有人可以指导我如何加载任何一个视图并设置/获取值到/从它.

在将用户界面添加到片段时，它显示每次调用 onCreateView 都会使视图膨胀：

public static class ExampleFragment extends Fragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.example_fragment, container, false);
    }
}

参考： http //developer.android.com/guide/components/fragments.html#UI

如果我缓存膨胀的视图并在下一次调用时返回它，例如：

public static class ExampleFragment extends Fragment {
    private View mView = null;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        if(mView == null){
            mView = inflater.inflate(R.layout.example_fragment, container, false);
        }else{
            //detach mView from previous parent if exist
            ...
        }
        return mView;
    } …

我使用布局inflater,用一些按钮和一些文本视图来膨胀线性布局.如何在充气布局中访问小部件？

例如:我有一个按钮,我想为它设置onclick监听器.通常用"findViewById"声明按钮,然后设置监听器.但是膨胀按钮不存在于活动xml中(线性布局使用不同的xml而不是活动xml)以使用"findViewById"查找其视图.

我的inflater代码:

 LinearLayout item = (LinearLayout )findViewById(R.id.linear_layout_duel_basic_easy);
            View child_1 = getLayoutInflater().inflate(R.layout.linear_layout_duel_1, null);
            item.addView(child_1);

我要隐藏的布局:

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:orientation="horizontal"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.5"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="TextView" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="Button" />
</LinearLayout>

谢谢你的帮助.

我已经loop在我的代码中添加Views了Layout,下面的代码是一个Loop which is present in another loop,我有这么多的循环,Activity takes so much time to start如何处理这个？

foreach (InfoQuery item in InfoList)
        {


            if (item == "kitten")
            {
                if (!done)
                {
                    TextView view= new TextView(ApplicationContext);
                    view.LayoutParameters = mainLayout.LayoutParameters;
                    view.TextSize = TypedValue.ApplyDimension(ComplexUnitType.Sp, 3, ApplicationContext.Resources.DisplayMetrics);
                    view.SetPadding((int)TypedValue.ApplyDimension(ComplexUnitType.Dip, 10, ApplicationContext.Resources.DisplayMetrics), 0, (int)TypedValue.ApplyDimension(ComplexUnitType.Dip, 10, ApplicationContext.Resources.DisplayMetrics), 0);
                    view.Text = item.position;
                    layout2.AddView(view,0);
                    done = true;
                }

                TextView view2= new TextView(ApplicationContext);
                view2.LayoutParameters = mainLayout.LayoutParameters;
                view2.TextSize = TypedValue.ApplyDimension(ComplexUnitType.Sp, 3, ApplicationContext.Resources.DisplayMetrics); ;
                view2.SetPadding((int)TypedValue.ApplyDimension(ComplexUnitType.Dip, 30, …