1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.example.android.apis.view;
18
19//Need the following import to get access to the app resources, since this
20//class is in a sub-package.
21import com.example.android.apis.R;
22
23import android.app.Activity;
24import android.os.Bundle;
25import android.view.Menu;
26import android.view.Gravity;
27import android.view.MenuItem;
28import android.widget.LinearLayout;
29
30
31/**
32 * Demonstrates horizontal and vertical gravity
33 */
34public class LinearLayout8 extends Activity {
35
36    private LinearLayout mLinearLayout;
37
38    // Menu item Ids
39    public static final int VERTICAL_ID = Menu.FIRST;
40    public static final int HORIZONTAL_ID = Menu.FIRST + 1;
41
42    public static final int TOP_ID = Menu.FIRST + 2;
43    public static final int MIDDLE_ID = Menu.FIRST + 3;
44    public static final int BOTTOM_ID = Menu.FIRST + 4;
45
46    public static final int LEFT_ID = Menu.FIRST + 5;
47    public static final int CENTER_ID = Menu.FIRST + 6;
48    public static final int RIGHT_ID = Menu.FIRST + 7;
49
50    @Override
51    protected void onCreate(Bundle savedInstanceState) {
52        super.onCreate(savedInstanceState);
53        setContentView(R.layout.linear_layout_8);
54        mLinearLayout = (LinearLayout)findViewById(R.id.layout);
55    }
56
57    @Override
58    public boolean onCreateOptionsMenu(Menu menu) {
59        super.onCreateOptionsMenu(menu);
60        menu.add(0, VERTICAL_ID, 0, R.string.linear_layout_8_vertical);
61        menu.add(0, HORIZONTAL_ID, 0, R.string.linear_layout_8_horizontal);
62        menu.add(0, TOP_ID, 0, R.string.linear_layout_8_top);
63        menu.add(0, MIDDLE_ID, 0, R.string.linear_layout_8_middle);
64        menu.add(0, BOTTOM_ID, 0, R.string.linear_layout_8_bottom);
65        menu.add(0, LEFT_ID, 0, R.string.linear_layout_8_left);
66        menu.add(0, CENTER_ID, 0, R.string.linear_layout_8_center);
67        menu.add(0, RIGHT_ID, 0, R.string.linear_layout_8_right);
68
69        return true;
70    }
71
72    @Override
73    public boolean onOptionsItemSelected(MenuItem item) {
74        switch (item.getItemId()) {
75
76        case VERTICAL_ID:
77            mLinearLayout.setOrientation(LinearLayout.VERTICAL);
78            return true;
79        case HORIZONTAL_ID:
80            mLinearLayout.setOrientation(LinearLayout.HORIZONTAL);
81            return true;
82
83        case TOP_ID:
84            mLinearLayout.setVerticalGravity(Gravity.TOP);
85            return true;
86        case MIDDLE_ID:
87            mLinearLayout.setVerticalGravity(Gravity.CENTER_VERTICAL);
88            return true;
89        case BOTTOM_ID:
90            mLinearLayout.setVerticalGravity(Gravity.BOTTOM);
91            return true;
92
93        case LEFT_ID:
94            mLinearLayout.setHorizontalGravity(Gravity.LEFT);
95            return true;
96        case CENTER_ID:
97            mLinearLayout.setHorizontalGravity(Gravity.CENTER_HORIZONTAL);
98            return true;
99        case RIGHT_ID:
100            mLinearLayout.setHorizontalGravity(Gravity.RIGHT);
101            return true;
102
103        }
104        return super.onOptionsItemSelected(item);
105    }
106}
107