cmsdk: Add ListPreference helpers backed by CMSettings

Change-Id: Ide607a4ba3b220d82aff5019f61ecdc7afe0a523

sdk/src/java/cyanogenmod/preference/CMSecureSettingListPreference.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package cyanogenmod.preference;
+
+import android.content.Context;
+import android.support.v7.preference.ListPreference;
+import android.util.AttributeSet;
+
+import cyanogenmod.providers.CMSettings;
+
+
+public class CMSecureSettingListPreference extends ListPreference {
+    public CMSecureSettingListPreference(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public CMSecureSettingListPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected boolean persistString(String value) {
+        if (shouldPersist()) {
+            if (value == getPersistedString(null)) {
+                // It's already there, so the same as persisting
+                return true;
+            }
+            CMSettings.Secure.putString(getContext().getContentResolver(), getKey(), value);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected String getPersistedString(String defaultReturnValue) {
+        if (!shouldPersist()) {
+            return defaultReturnValue;
+        }
+        String value = CMSettings.Secure.getString(getContext().getContentResolver(), getKey());
+        return value == null ? defaultReturnValue : value;
+    }
+
+    @Override
+    protected boolean isPersisted() {
+        return CMSettings.Secure.getString(getContext().getContentResolver(), getKey()) != null;
+    }
+
+    public int getIntValue(int defValue) {
+        return getValue() == null ? defValue : Integer.valueOf(getValue());
+    }
+}

sdk/src/java/cyanogenmod/preference/CMSystemSettingListPreference.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 The CyanogenMod project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package cyanogenmod.preference;
+
+import android.content.Context;
+import android.support.v7.preference.ListPreference;
+import android.util.AttributeSet;
+
+import cyanogenmod.providers.CMSettings;
+
+
+public class CMSystemSettingListPreference extends ListPreference {
+    public CMSystemSettingListPreference(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public CMSystemSettingListPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected boolean persistString(String value) {
+        if (shouldPersist()) {
+            if (value == getPersistedString(null)) {
+                // It's already there, so the same as persisting
+                return true;
+            }
+            CMSettings.System.putString(getContext().getContentResolver(), getKey(), value);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    protected String getPersistedString(String defaultReturnValue) {
+        if (!shouldPersist()) {
+            return defaultReturnValue;
+        }
+        String value = CMSettings.System.getString(getContext().getContentResolver(), getKey());
+        return value == null ? defaultReturnValue : value;
+    }
+
+    @Override
+    protected boolean isPersisted() {
+        return CMSettings.System.getString(getContext().getContentResolver(), getKey()) != null;
+    }
+
+    public int getIntValue(int defValue) {
+        return getValue() == null ? defValue : Integer.valueOf(getValue());
+    }
+}