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Remove back button entirely when disabled

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Bug: 7480506 Encryption screen shows back button
Change-Id: Iba2706fd6b61303178b472071f32d65bdf72e50d
This commit is contained in:
Vikram Aggarwal
2012-11-08 16:54:59 -08:00
parent 15d91c6e82
commit bf459dafdc
1 changed files with 30 additions and 10 deletions
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40
src/com/android/settings/CryptKeeper.java
View File

@@ -55,6 +55,7 @@ import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.android.internal.statusbar.StatusBarIcon;
import com.android.internal.telephony.ITelephony;
import com.android.internal.telephony.Phone;
import com.android.internal.telephony.PhoneConstants;
@@ -229,6 +230,16 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
};
private AudioManager mAudioManager;
/** The status bar where back/home/recent buttons are shown. */
private StatusBarManager mStatusBar;
/** All the widgets to disable in the status bar */
final private static int sWidgetsToDisable = StatusBarManager.DISABLE_EXPAND
| StatusBarManager.DISABLE_NOTIFICATION_ICONS
| StatusBarManager.DISABLE_NOTIFICATION_ALERTS
| StatusBarManager.DISABLE_SYSTEM_INFO
| StatusBarManager.DISABLE_HOME
| StatusBarManager.DISABLE_RECENT;
/** @return whether or not this Activity was started for debugging the UI only. */
private boolean isDebugView() {
@@ -269,6 +280,7 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
*/
@Override
public void onBackPressed() {
// In the rare case that something pressed back even though we were disabled.
if (mIgnoreBack)
return;
super.onBackPressed();
@@ -299,13 +311,8 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
// Disable the status bar, but do NOT disable back because the user needs a way to go
// from keyboard settings and back to the password screen.
StatusBarManager sbm = (StatusBarManager) getSystemService(Context.STATUS_BAR_SERVICE);
sbm.disable(StatusBarManager.DISABLE_EXPAND
| StatusBarManager.DISABLE_NOTIFICATION_ICONS
| StatusBarManager.DISABLE_NOTIFICATION_ALERTS
| StatusBarManager.DISABLE_SYSTEM_INFO
| StatusBarManager.DISABLE_HOME
| StatusBarManager.DISABLE_RECENT);
mStatusBar = (StatusBarManager) getSystemService(Context.STATUS_BAR_SERVICE);
mStatusBar.disable(sWidgetsToDisable);
setAirplaneModeIfNecessary();
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
@@ -403,7 +410,7 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
((ProgressBar) findViewById(R.id.progress_bar)).setIndeterminate(true);
// Ignore all back presses from now, both hard and soft keys.
mIgnoreBack = true;
setBackFunctionality(false);
// Start the first run of progress manually. This method sets up messages to occur at
// repeated intervals.
updateProgress();
@@ -469,7 +476,7 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
if (mCooldown <= 0) {
// Re-enable the password entry and back presses.
mPasswordEntry.setEnabled(true);
mIgnoreBack = false;
setBackFunctionality(true);
status.setText(R.string.enter_password);
} else {
CharSequence template = getText(R.string.crypt_keeper_cooldown);
@@ -481,6 +488,19 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
}
}
/**
* Sets the back status: enabled or disabled according to the parameter.
* @param isEnabled true if back is enabled, false otherwise.
*/
private final void setBackFunctionality(boolean isEnabled) {
mIgnoreBack = !isEnabled;
if (isEnabled) {
mStatusBar.disable(sWidgetsToDisable);
} else {
mStatusBar.disable(sWidgetsToDisable | StatusBarManager.DISABLE_BACK);
}
}
private void passwordEntryInit() {
mPasswordEntry = (EditText) findViewById(R.id.passwordEntry);
mPasswordEntry.setOnEditorActionListener(this);
@@ -610,7 +630,7 @@ public class CryptKeeper extends Activity implements TextView.OnEditorActionList
// Disable the password entry and back keypress while checking the password. These
// we either be re-enabled if the password was wrong or after the cooldown period.
mPasswordEntry.setEnabled(false);
mIgnoreBack = true;
setBackFunctionality(false);
Log.d(TAG, "Attempting to send command to decrypt");
new DecryptTask().execute(password);