我的布局包含TextView，EditText和ListView（不太相关）：
business_detail_screen.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Details"
android:id="@+id/business_details_caption_label"
android:layout_gravity="center_horizontal" />
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Address: "
android:paddingTop="10dp"
android:id="@+id/business_address_label"
android:layout_gravity="center_horizontal"
android:layout_weight="1"/>
<EditText
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="@+id/business_address_edit_text"
android:layout_gravity="center_horizontal"
android:layout_weight="3"/>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Available : "
android:paddingTop="10dp"
android:id="@+id/vacant_places_label"
android:layout_gravity="center_horizontal"
android:layout_weight="1"/>
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:paddingTop="10dp"
android:id="@+id/vacant_places_data"
android:layout_gravity="center_horizontal"
android:layout_weight="3"/>
</LinearLayout>
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/waiting_list_view"
android:layout_gravity="center_horizontal" />
</LinearLayout>
我的主要活动有一个viewpager：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context="com.enqme.enqu.BusinessActivity"
android:orientation="horizontal"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:showDividers="middle"
android:focusable="false"
android:divider="@drawable/layout_divider"
android:background="#ffffff">
<ListView
android:layout_width="0dp"
android:layout_height="match_parent"
android:id="@+id/businesses_list_view"
android:layout_gravity="center_vertical"
android:layout_weight="2"
android:headerDividersEnabled="true"
android:paddingRight="16dp"/>
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/details_pager"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:layout_weight="5" />
</LinearLayout>
在我的代码中，我创建了一个PagerAdapter，我将其发送到ViewPager：
package com.enqme.enqu;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import com.enqme.enqlib.utils.BackendApi;
import com.enqme.enqlib.utils.BackendCallback;
import com.enqme.enqlib.utils.Business;
import com.enqme.enqlib.utils.LogTags;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.zip.Inflater;
public class BusinessActivity extends Activity {
private ViewPager businessDetailsPager;
private BusinessDetailsPagerAdapter businessDetailsAdapter;
private class BusinessDetailsPagerAdapter extends PagerAdapter {
private ArrayList<Business> data;
private Context context;
public BusinessDetailsPagerAdapter(ArrayList<Business> d, Context ctx) {
context = ctx;
data = d;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
int id = 0;
switch (position) {
case 0:
id = R.layout.business_detail_screen_0;
break;
case 1:
id = R.layout.business_detail_screen_1;
break;
}
//LayoutInflater inflater = LayoutInflater.from(context);
LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(id, container, false);
container.addView(view, 0);
return view;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public int getCount() {
return 2;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_business);
currentBusiness = 0;
businessDetailsPager = (ViewPager)findViewById(R.id.details_pager);
businessDetailsAdapter = new BusinessDetailsPagerAdapter(businesses, this);
businessDetailsPager.setAdapter(businessDetailsAdapter);
}
}
ViewPager显示但问题是只显示EditText，TextView根本没有显示，没有文字。如果我将文本设置为EditText字段，则会看到它，因此不会出现问题。
请帮助：）
答案 0 :(得分：0)