Preferences: NumberPickerPreference

Change-Id: I1888fe530a71af1e5d3b015d4a416c98e20ee3e0

3 files changed, 161 insertions, 0 deletions

diff --git a/res/layout/number_picker_dialog.xml b/res/layout/number_picker_dialog.xml
new file mode 100755
index 000000000..2f87bc86f
--- /dev/null
+++ b/res/layout/number_picker_dialog.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source 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.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:gravity="center_horizontal"
+    android:layout_width="wrap_content"
+    android:layout_height="match_parent">
+
+    <NumberPicker
+        android:id="@+id/number_picker"
+        android:layout_centerInParent="true"
+        android:layout_width="100dip"
+        android:layout_height="match_parent" />
+
+</LinearLayout>
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 125856287..8eaabfea3 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -164,4 +164,11 @@
         <attr name="title" format="reference" />
         <attr name="uri" format="string" />
     </declare-styleable>
+
+    <declare-styleable name="NumberPickerPreference">
+        <attr name="max" format="integer" />
+        <attr name="min" format="integer" />
+        <attr name="maxExternal" format="string" />
+        <attr name="minExternal" format="string" />
+    </declare-styleable>
 </resources>
diff --git a/src/com/android/launcher2/preference/NumberPickerPreference.java b/src/com/android/launcher2/preference/NumberPickerPreference.java
new file mode 100644
index 000000000..32e006f09
--- /dev/null
+++ b/src/com/android/launcher2/preference/NumberPickerPreference.java
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2011 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 com.android.launcher2.preference;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.preference.Preference;
+import android.preference.DialogPreference;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.NumberPicker;
+
+import com.android.launcher.R;
+
+/*
+ * @author Danesh
+ * @author nebkat
+ */
+
+public class NumberPickerPreference extends DialogPreference {
+    private int mMin, mMax, mDefault;
+
+    private String mMaxExternalKey, mMinExternalKey;
+    private Preference mMaxExternalPreference, mMinExternalPreference;
+
+    private NumberPicker mNumberPicker;
+
+    public NumberPickerPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        TypedArray dialogType = context.obtainStyledAttributes(attrs,
+                com.android.internal.R.styleable.DialogPreference, 0, 0);
+        TypedArray numberPickerType = context.obtainStyledAttributes(attrs,
+                R.styleable.NumberPickerPreference, 0, 0);
+
+        mMaxExternalKey = numberPickerType.getString(R.styleable.NumberPickerPreference_maxExternal);
+        mMinExternalKey = numberPickerType.getString(R.styleable.NumberPickerPreference_minExternal);
+
+        mMax = numberPickerType.getInt(R.styleable.NumberPickerPreference_max, 5);
+        mMin = numberPickerType.getInt(R.styleable.NumberPickerPreference_min, 0);
+
+        mDefault = dialogType.getInt(com.android.internal.R.styleable.Preference_defaultValue, mMin);
+
+        dialogType.recycle();
+        numberPickerType.recycle();
+    }
+
+
+    protected void onAttachedToActivity() {
+        // External values
+        if (mMaxExternalKey != null) {
+            Preference maxPreference = findPreferenceInHierarchy(mMaxExternalKey);
+            if (maxPreference != null) {
+                if (maxPreference instanceof NumberPickerPreference) {
+                    mMaxExternalPreference = maxPreference;
+                }
+            }
+        }
+        if (mMinExternalKey != null) {
+            Preference minPreference = findPreferenceInHierarchy(mMinExternalKey);
+            if (minPreference != null) {
+                if (minPreference instanceof NumberPickerPreference) {
+                    mMinExternalPreference = minPreference;
+                }
+            }
+        }
+    }
+
+    @Override
+    protected View onCreateDialogView() {
+        int max = mMax;
+        int min = mMin;
+
+        // External values
+        if (mMaxExternalKey != null && mMaxExternalPreference != null) {
+            max = mMaxExternalPreference.getSharedPreferences().getInt(mMaxExternalKey, mMax);
+        }
+        if (mMinExternalKey != null && mMinExternalPreference != null) {
+            min = mMinExternalPreference.getSharedPreferences().getInt(mMinExternalKey, mMin);
+        }
+
+        LayoutInflater inflater =
+                (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        View view = inflater.inflate(R.layout.number_picker_dialog, null);
+
+        mNumberPicker = (NumberPicker) view.findViewById(R.id.number_picker);
+
+        // Initialize state
+        mNumberPicker.setMaxValue(max);
+        mNumberPicker.setMinValue(min);
+        mNumberPicker.setValue(getPersistedInt(mDefault));
+        mNumberPicker.setWrapSelectorWheel(false);
+
+        // No keyboard popup
+        EditText textInput = (EditText) mNumberPicker.findViewById(com.android.internal.R.id.numberpicker_input);
+        textInput.setCursorVisible(false);
+        textInput.setFocusable(false);
+        textInput.setFocusableInTouchMode(false);
+
+        return view;
+    }
+
+    @Override
+    protected void onDialogClosed(boolean positiveResult) {
+        if (positiveResult) {
+            persistInt(mNumberPicker.getValue());
+        }
+    }
+
+}