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Adding a prompt to help users download Talkback

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(Google's open source screen reader) if they go
to the Accessibility settings screen and do not
have any accessibility tools installed.

This is a fix for bug #2250279
This commit is contained in:
Charles Chen
2009-11-10 14:05:41 -08:00
parent 51004fbf7f
commit 05b08a50f8
2 changed files with 60 additions and 0 deletions
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10
res/values/strings.xml
View File

@@ -1752,6 +1752,16 @@ found in the list of installed applications.</string>
<!-- Warning about disabling accessibility displayed as a dialog message when the user
selects to disable accessibility. This avoids accidental disabling. -->
<string name="accessibility_service_disable_warning">Disable accessibility?</string>
<!-- Title for the prompt that lets users know that they have no accessibility related apps
installed and that they can install TalkBack from Market. -->
<string name="accessibility_service_no_apps_title">No accessibility related applications found
</string>
<!-- Message for the prompt that lets users know that they have no accessibility related apps
installed and that they can install TalkBack from Market. -->
<string name="accessibility_service_no_apps_message">You do not have any accessibility related
applications installed.\n\nYou can download a screen reader for your device from Android
Market.\n\nClick "OK" to install the screen reader.</string>
<!-- App Fuel Gauge strings -->
<skip/>

50
src/com/android/settings/AccessibilitySettings.java
View File

@@ -19,8 +19,14 @@ package com.android.settings;
import android.app.AlertDialog;
import android.app.Service;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ServiceInfo;
import android.net.Uri;
import android.os.Bundle;
import android.os.SystemProperties;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
@@ -39,6 +45,9 @@ import java.util.Map;
* Activity with the accessibility settings.
*/
public class AccessibilitySettings extends PreferenceActivity {
private static final String DEFAULT_SCREENREADER_MARKET_LINK =
"market://search?q=pname:com.google.android.marvin.talkback";
private final String TOGGLE_ACCESSIBILITY_SERVICE_CHECKBOX =
"toggle_accessibility_service_checkbox";
@@ -108,6 +117,9 @@ public class AccessibilitySettings extends PreferenceActivity {
setAccessibilityServicePreferencesState(false);
}
mToggleCheckBox.setEnabled(false);
// Notify user that they do not have any accessibility apps
// installed and direct them to Market to get TalkBack
displayNoAppsAlert();
}
}
@@ -274,4 +286,42 @@ public class AccessibilitySettings extends PreferenceActivity {
mAccessibilityServicesCategory.addPreference(preference);
}
}
/**
* Displays a message telling the user that they do not have any accessibility
* related apps installed and that they can get TalkBack (Google's free screen
* reader) from Market.
*/
private void displayNoAppsAlert() {
try {
PackageManager pm = getPackageManager();
ApplicationInfo info = pm.getApplicationInfo("com.android.vending", 0);
} catch (NameNotFoundException e) {
// This is a no-op if the user does not have Android Market
return;
}
AlertDialog.Builder noAppsAlert = new AlertDialog.Builder(this);
noAppsAlert.setTitle(R.string.accessibility_service_no_apps_title);
noAppsAlert.setMessage(R.string.accessibility_service_no_apps_message);
noAppsAlert.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
String screenreaderMarketLink =
SystemProperties.get("ro.screenreader.market", DEFAULT_SCREENREADER_MARKET_LINK);
Uri marketUri = Uri.parse(screenreaderMarketLink);
Intent marketIntent = new Intent(Intent.ACTION_VIEW, marketUri);
startActivity(marketIntent);
finish();
}
});
noAppsAlert.setNegativeButton(android.R.string.cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
noAppsAlert.show();
}
}