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我有一个正在使用片段的android应用程序。它在菜单栏中大约有两个项目。第一个活动（主要活动工作正常。）当我切换到第二个选项卡时，一切正常。然后，当我尝试在第二个片段上将背景更改为黑色时，我失去了我的广告。如果我点击广告“应该”的位置，它会打开我的浏览器，所以广告仍然存在，只是不再可见。如何设置android背景并保持admob广告可见
当我从“activity_contact.xml”中删除“android：background =”@ android：color/black“时，我的广告再次变为可见状态。为什么会发生这种情况，以及如何更改我的分段活动的背景并保持我的admob广告可见？我也试图让“View getView（）”为我的ArrayAdapter工作，但它只是不会工作。这是因为我使用的是片段？
任何帮助表示赞赏。
MainActivity.jar/
package com.books4nooks.tashasays;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import android.annotation.TargetApi;
import android.app.ActionBar;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;
public class MainActivity extends FragmentActivity implements
ActionBar.OnNavigationListener {
/**
* The serialization (saved instance state) Bundle key representing the
* current dropdown position.
*/
private static final String STATE_SELECTED_NAVIGATION_ITEM = "selected_navigation_item";
private AdView adView;
private static final String AD_UNIT_ID = "xxx";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Create the adView.
adView = new AdView(this);
adView.setAdUnitId(AD_UNIT_ID);
adView.setAdSize(AdSize.SMART_BANNER);
// Add the AdView to the view hierarchy. The view will have no size
// until the ad is loaded.
RelativeLayout layout = (RelativeLayout) findViewById(R.id.container);
layout.addView(adView);
// Create an ad request. Check logcat output for the hashed device ID to
// get test ads on a physical device.
AdRequest adRequest = new AdRequest.Builder()
.build();
// Start loading the ad in the background.
adView.loadAd(adRequest);
// Set up the action bar to show a dropdown list.
final ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
// Set up the dropdown list navigation in the action bar.
actionBar.setListNavigationCallbacks(
// Specify a SpinnerAdapter to populate the dropdown list.
new ArrayAdapter<String>(getActionBarThemedContextCompat(),
android.R.layout.simple_list_item_1,
android.R.id.text1, new String[] {
getString(R.string.title_section1),
getString(R.string.title_section2),
}), this);
}
@Override
public void onResume() {
super.onResume();
if (adView != null) {
adView.resume();
}
}
@Override
public void onPause() {
if (adView != null) {
adView.pause();
}
super.onPause();
}
/** Called before the activity is destroyed. */
@Override
public void onDestroy() {
// Destroy the AdView.
if (adView != null) {
adView.destroy();
}
super.onDestroy();
}
/**
* Backward-compatible version of {@link ActionBar#getThemedContext()} that
* simply returns the {@link android.app.Activity} if
* <code>getThemedContext</code> is unavailable.
*/
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private Context getActionBarThemedContextCompat() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
return getActionBar().getThemedContext();
} else {
return this;
}
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
// Restore the previously serialized current dropdown position.
if (savedInstanceState.containsKey(STATE_SELECTED_NAVIGATION_ITEM)) {
getActionBar().setSelectedNavigationItem(
savedInstanceState.getInt(STATE_SELECTED_NAVIGATION_ITEM));
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
// Serialize the current dropdown position.
outState.putInt(STATE_SELECTED_NAVIGATION_ITEM, getActionBar()
.getSelectedNavigationIndex());
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
// action with ID action_settings was selected
case R.id.action_settings:
finish();
android.os.Process.killProcess(android.os.Process.myPid());
super.onDestroy();
break;
default:
break;
}
return true;
}
@Override
public boolean onNavigationItemSelected(int position, long id) {
// When the given dropdown item is selected, show its contents in the
// container view.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
fragment.setArguments(args);
getSupportFragmentManager().beginTransaction()
.replace(R.id.container, fragment).commit();
return true;
}
/**
* A dummy fragment representing a section of the app, but that simply
* displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public static final String ARG_SECTION_NUMBER = "section_number";
private RSSFeed myRssFeed = null;
List headlines;
List links;
ListView getListText;
TextView feedTitle;
TextView feedDescribtion;
TextView feedPubdate;
TextView feedLink;
View rootView;
public DummySectionFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.fragment_main_dummy, container, false);
TextView dummyTextView = (TextView) rootView
.findViewById(R.id.section_label);
dummyTextView.setText(Integer.toString(getArguments().getInt(
ARG_SECTION_NUMBER)));
if (dummyTextView.getText().equals("1"))
{
rootView = inflater.inflate(R.layout.activity_main, container, false);
setRetainInstance(true);
startReadRss();
}
if (dummyTextView.getText().equals("2"))
{
rootView = inflater.inflate(R.layout.activity_contact, container, false);
setRetainInstance(true);
Button btnSubmit = (Button) rootView.findViewById(R.id.button1);
btnSubmit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v)
{
View getBodyLayout = (View)getView().findViewById(R.id.emailBody); //Find the layout
EditText getBodyText = (EditText) getBodyLayout.findViewById(R.id.emailBody); //Access the object from the layout
String gotBodyText = getBodyText.getText().toString(); //Get value and convert to a string
sendContact(rootView, gotBodyText);
}
});
}
return rootView;
}
public boolean isNetworkAvailable() {
ConnectivityManager connectivityManager = (ConnectivityManager) getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
public class RssLoadingTask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
displayRss();
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
preReadRss();
}
@Override
protected void onProgressUpdate(Void... values) {
// TODO Auto-generated method stub
//super.onProgressUpdate(values);
}
@Override
protected Void doInBackground(Void... arg0) {
// TODO Auto-generated method stub
readRss();
return null;
}
}
public InputStream getInputStream(URL url)
{
try
{
return url.openConnection().getInputStream();
}
catch (IOException e)
{
return null;
}
}
private void startReadRss(){
if (isNetworkAvailable())
new RssLoadingTask().execute();
else
Toast.makeText(getActivity(), "Sorry, your internet connection is currently available.", Toast.LENGTH_SHORT).show();
}
private void preReadRss()
{
Toast.makeText(this.getActivity(), "Reading RSS, Please wait.", 0).show();
}
private void readRss(){
// Initializing instance variables
headlines = new ArrayList();
links = new ArrayList();
try {
URL url = new URL("http://msn.com/feed/");
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(false);
XmlPullParser xpp = factory.newPullParser();
//Retrieve the XML from an input stream
xpp.setInput(getInputStream(url), "UTF_8");
boolean insideItem = false;
//Returns the type of current event: START_TAG, END_TAG, etc..
int eventType = xpp.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
if (eventType == XmlPullParser.START_TAG) {
if (xpp.getName().equalsIgnoreCase("item")) {
insideItem = true;
}
else if (xpp.getName().equalsIgnoreCase("title")) {
if (insideItem)
headlines.add(xpp.nextText()); //extract the headline
}
else if (xpp.getName().equalsIgnoreCase("link")) {
if (insideItem)
links.add(xpp.nextText());
}
} else if (eventType==XmlPullParser.END_TAG && xpp.getName().equalsIgnoreCase("item")) {
insideItem = false;
}
eventType = xpp.next(); //move to next element
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (XmlPullParserException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void displayRss(){
// Binding data
ArrayAdapter adapter = new ArrayAdapter<String>(getActivity(), R.layout.customlist, headlines);
View getListLayout = (View)getView().findViewById(R.id.lView); //Find the layout
getListText = (ListView) getListLayout.findViewById(R.id.lView); //Access the object from the layout
getListText.setAdapter(adapter);
getListText.setOnItemClickListener(new OnItemClickListener() {
//
@Override
public void onItemClick(AdapterView<?> arg0, View v, int position, long arg3) {
Uri uri = Uri.parse((String) links.get(position));
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
}
});
}
public void sendContact(View view, String emailBody)
{
Intent sendEmail = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("mailto", "[email protected]", null));
sendEmail.putExtra(Intent.EXTRA_SUBJECT, "Subject line");
sendEmail.putExtra(Intent.EXTRA_TEXT, emailBody);
try {
startActivity(Intent.createChooser(sendEmail, "Send e-mail."));
}
catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(getActivity(), "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
}
}
}
activity_contact.xml/
<com.google.android.gms.ads.AdView
android:id="@+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
ads:adSize="SMART_BANNER"
ads:adUnitId="xxx" >
</com.google.android.gms.ads.AdView>
<EditText
android:id="@+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/adView"
android:layout_marginTop="25dp"
android:ems="10"
android:hint="Enter your name." >
<requestFocus />
</EditText>
<EditText
android:id="@+id/emailBody"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/txtName"
android:layout_marginTop="34dp"
android:ems="10"
android:hint="Enter your message."
android:inputType="textMultiLine"
android:maxLines="7" />
<Button
android:id="@+id/button1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/emailBody"
android:text="Submit" />
</RelativeLayout>
activity_main.xml中/
<com.google.android.gms.ads.AdView
android:id="@+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
ads:adSize="SMART_BANNER"
ads:adUnitId="xxxx" >
</com.google.android.gms.ads.AdView>
<ListView
android:id="@+id/lView"
android:layout_below="@+id/adView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />