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Fix for ListViews which don't support headers

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This commit is contained in:
serso 2015-02-04 20:50:01 +01:00
parent 805abda582
commit d91bc22577
1 changed files with 16 additions and 7 deletions
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23
android-app/src/main/java/org/solovyev/android/calculator/preferences/BasePreferencesActivity.java
View File

@ -1,7 +1,6 @@
package org.solovyev.android.calculator.preferences;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.support.v7.widget.Toolbar;
@ -9,6 +8,7 @@ import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.ListView;
import org.solovyev.android.calculator.ActivityUi;
import org.solovyev.android.calculator.AdView;
import org.solovyev.android.calculator.App;
@ -22,6 +22,7 @@ import javax.annotation.Nonnull;
public abstract class BasePreferencesActivity extends PreferenceActivity {
private static boolean SUPPORT_HEADERS = true;
private final ActivityCheckout checkout = Checkout.forActivity(this, App.getBilling(), App.getProducts());
private Inventory inventory;
private AdView adView;
@ -66,29 +67,37 @@ public abstract class BasePreferencesActivity extends PreferenceActivity {
}
protected void onShowAd(boolean show) {
if(!supportsAds()) {
if (!supportsHeaders()) {
return;
}
final ListView listView = getListView();
if (show) {
if (adView != null) {
return;
}
adView = (AdView) LayoutInflater.from(this).inflate(R.layout.ad, null);
adView.show();
getListView().addHeaderView(adView);
try {
listView.addHeaderView(adView);
} catch (IllegalStateException e) {
// doesn't support header views
SUPPORT_HEADERS = false;
adView.hide();
adView = null;
}
} else {
if (adView == null) {
return;
}
getListView().removeHeaderView(adView);
listView.removeHeaderView(adView);
adView.hide();
adView = null;
}
}
private boolean supportsAds() {
// on Android 2.3 the headers in the list view are not supported
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB;
private boolean supportsHeaders() {
return SUPPORT_HEADERS;
}
@Override