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Add encryption status controls

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* Enable, disable, and activate encryption
* Report encryption status

Change-Id: Ia76cf6033fe00ebdfd3369f8123f5d1ec109f3a9
This commit is contained in:
Andy Stadler
2011-01-12 15:19:58 -08:00
parent d911d8812a
commit 3eb48a061a
4 changed files with 138 additions and 3 deletions
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42
samples/ApiDemos/res/layout/device_admin_sample.xml
View File

@@ -272,6 +272,48 @@
</LinearLayout>
<!-- Encryption Status Controls -->
<LinearLayout
android:orientation="horizontal"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<Button android:id="@+id/encryption_enable_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/encryption_enable_label" />
<Button android:id="@+id/encryption_disable_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/encryption_disable_label" />
<Button android:id="@+id/encryption_activate_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/encryption_activate_label" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:gravity="center"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView android:id="@+id/encryption_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button android:id="@+id/encryption_update_status_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android_layout_gravity="east|center_vertical"
android:text="@string/update_encryption_status_label" />
</LinearLayout>
</LinearLayout>
</ScrollView>

5
samples/ApiDemos/res/values/strings.xml
View File

@@ -614,6 +614,11 @@
<string name="proxylist_hint">No proxy for domain1,domain2</string>
<string name="set_proxy_label">Set Global Proxy</string>
<string name="encryption_enable_label">Enable Encryption</string>
<string name="encryption_disable_label">Disable Encryption</string>
<string name="encryption_activate_label">Activate Encryption</string>
<string name="update_encryption_status_label">Update Status</string>
<!-- ============================== -->
<!-- app/voice recognition examples strings -->
<!-- ============================== -->

1
samples/ApiDemos/res/xml/device_admin_sample.xml
View File

@@ -24,6 +24,7 @@
<wipe-data />
<set-global-proxy />
<expire-password />
<encrypted-storage />
</uses-policies>
</device-admin>
<!-- END_INCLUDE(meta_data) -->

93
samples/ApiDemos/src/com/example/android/apis/app/DeviceAdminSample.java
View File

@@ -141,7 +141,10 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
* all together; typically this code would appear in some separate class.
*/
public static class Controller extends Activity {
static final int RESULT_ENABLE = 1;
static final int REQUEST_CODE_ENABLE_ADMIN = 1;
static final int REQUEST_CODE_START_ENCRYPTION = 2;
private static final long MS_PER_MINUTE = 60*1000;
DevicePolicyManager mDPM;
@@ -195,6 +198,12 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
private TextView mPasswordExpirationStatus;
private Button mPasswordExpirationStatusButton;
private Button mEnableEncryptionButton;
private Button mDisableEncryptionButton;
private Button mActivateEncryptionButton;
private Button mEncryptionStatusButton;
private TextView mEncryptionStatus;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@@ -395,6 +404,16 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
mProxyList = (EditText) findViewById(R.id.proxylist);
mProxyButton = (Button) findViewById(R.id.set_proxy);
mProxyButton.setOnClickListener(mSetProxyListener);
mEnableEncryptionButton = (Button) findViewById(R.id.encryption_enable_button);
mEnableEncryptionButton.setOnClickListener(mEncryptionButtonListener);
mDisableEncryptionButton = (Button) findViewById(R.id.encryption_disable_button);
mDisableEncryptionButton.setOnClickListener(mEncryptionButtonListener);
mActivateEncryptionButton = (Button) findViewById(R.id.encryption_activate_button);
mActivateEncryptionButton.setOnClickListener(mEncryptionButtonListener);
mEncryptionStatusButton = (Button) findViewById(R.id.encryption_update_status_button);
mEncryptionStatusButton.setOnClickListener(mEncryptionButtonListener);
mEncryptionStatus = (TextView) findViewById(R.id.encryption_status);
}
void updateButtonStates() {
@@ -417,6 +436,10 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
mForceLockButton.setEnabled(true);
mWipeDataButton.setEnabled(true);
mWipeAllDataButton.setEnabled(true);
mEnableEncryptionButton.setEnabled(true);
mDisableEncryptionButton.setEnabled(true);
mActivateEncryptionButton.setEnabled(true);
mEncryptionStatusButton.setEnabled(true);
} else {
mEnableButton.setEnabled(true);
mDisableButton.setEnabled(false);
@@ -435,6 +458,10 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
mForceLockButton.setEnabled(false);
mWipeDataButton.setEnabled(false);
mWipeAllDataButton.setEnabled(false);
mEnableEncryptionButton.setEnabled(false);
mDisableEncryptionButton.setEnabled(false);
mActivateEncryptionButton.setEnabled(false);
mEncryptionStatusButton.setEnabled(false);
}
}
@@ -622,13 +649,16 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case RESULT_ENABLE:
case REQUEST_CODE_ENABLE_ADMIN:
if (resultCode == Activity.RESULT_OK) {
Log.i(TAG, "Admin enabled!");
} else {
Log.i(TAG, "Admin enable FAILED!");
}
return;
case REQUEST_CODE_START_ENCRYPTION:
updateEncryptionStatus();
return;
}
super.onActivityResult(requestCode, resultCode, data);
@@ -642,7 +672,7 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
mDeviceAdminSample);
intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION,
"Additional text explaining why this needs to be added.");
startActivityForResult(intent, RESULT_ENABLE);
startActivityForResult(intent, REQUEST_CODE_ENABLE_ADMIN);
}
};
@@ -801,5 +831,62 @@ public class DeviceAdminSample extends DeviceAdminReceiver {
}
};
private OnClickListener mEncryptionButtonListener = new OnClickListener() {
public void onClick(View v) {
int buttonId = v.getId();
if (buttonId == R.id.encryption_enable_button) {
mDPM.setStorageEncryption(mDeviceAdminSample, true);
} else if (buttonId == R.id.encryption_disable_button) {
mDPM.setStorageEncryption(mDeviceAdminSample, false);
} else if (buttonId == R.id.encryption_activate_button) {
if (ActivityManager.isUserAMonkey()) {
// Don't trust monkeys to do the right thing!
AlertDialog.Builder builder = new AlertDialog.Builder(Controller.this);
builder.setMessage("You can't activate encryption, you're a monkey!");
builder.setPositiveButton("I admit defeat", null);
builder.show();
return;
}
if (mDPM.getStorageEncryption(mDeviceAdminSample) ==
DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED) {
AlertDialog.Builder builder = new AlertDialog.Builder(Controller.this);
builder.setMessage("Encryption is unsupported on this device.");
builder.setPositiveButton("OK", null);
builder.show();
return;
}
// Launch the activity to activate encryption. May or may not return!
Intent intent = new Intent(DevicePolicyManager.ACTION_START_ENCRYPTION);
startActivityForResult(intent, REQUEST_CODE_START_ENCRYPTION);
}
// In all cases, fall through to update status
updateEncryptionStatus();
}
};
private void updateEncryptionStatus() {
String newStatus = "unknown";
int newStatusCode = mDPM.getStorageEncryption(mDeviceAdminSample);
switch (newStatusCode) {
case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED:
newStatus = "unsupported";
break;
case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE:
newStatus = "inactive";
break;
case DevicePolicyManager.ENCRYPTION_STATUS_REQUESTED:
newStatus = "requested";
break;
case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING:
newStatus = "activating";
break;
case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE:
newStatus = "active";
break;
}
mEncryptionStatus.setText(newStatus);
}
}
}