Android TextView文本未显示在ViewPager中,而EditText正在显示
我有一个带有Android TextView文本未显示在ViewPager中,而EditText正在显示,android,android-viewpager,Android,Android Viewpager,我有一个带有文本视图、编辑文本和列表视图(不太相关)的布局: business\u detail\u 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_par
文本视图
、编辑文本
和列表视图
(不太相关)的布局:
business\u detail\u 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>
ViewPager
显示,但问题是只显示EditText
,TextView
根本不显示,没有文本。如果我将文本设置为EditText
字段,就会看到它,因此它不是充气机问题
请帮助:)发生这种情况是因为我在AndroidManifest.xml中
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".SigninActivity"
android:screenOrientation="landscape">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".BusinessActivity"
android:screenOrientation="landscape"
android:theme="@android:style/Theme.NoTitleBar">
</activity>
</application>
特别是
android:theme=“@android:style/theme.NoTitleBar”
这导致了黑色背景,我用它修补了
android:background=“#ffffff”
在主要活动中。这导致文本视图不可见-背景仍然是黑色,文本是黑色的,我将背景变成白色-没有文本(糟糕的解释)尝试从XML中删除“文本外观”,然后暂时运行代码。我想这可能发生在ListView的bcos中,它有android:layout\u height=“match\u parent”所以它涵盖了整个屏幕。我刚刚复制并粘贴了你的XML文件。它在我的系统上运行良好。现在尝试清理你的项目,可能会有所帮助。已经清理并重建,没有任何更改。在另一台设备上看起来也一样。好的,你是对的。但是,作为一个独立的应用程序,它的工作原理与预期的一样,在我的应用程序上下文中,这可能有所不同。我会找到原因并发布
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);
}
}
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".SigninActivity"
android:screenOrientation="landscape">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".BusinessActivity"
android:screenOrientation="landscape"
android:theme="@android:style/Theme.NoTitleBar">
</activity>
</application>