/* * Copyright (C) 2007 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. */package com.example.android.apis.view;//Need the following import to get access to the app resources, since this//class is in a sub-package.import com.example.android.apis.R;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.Gravity;import android.view.MenuItem;import android.widget.LinearLayout;/** * Demonstrates horizontal and vertical gravity */public class LinearLayout8 extends Activity {    private LinearLayout mLinearLayout;    // Menu item Ids    public static final int VERTICAL_ID = Menu.FIRST;    public static final int HORIZONTAL_ID = Menu.FIRST + 1;    public static final int TOP_ID = Menu.FIRST + 2;    public static final int MIDDLE_ID = Menu.FIRST + 3;    public static final int BOTTOM_ID = Menu.FIRST + 4;    public static final int LEFT_ID = Menu.FIRST + 5;    public static final int CENTER_ID = Menu.FIRST + 6;    public static final int RIGHT_ID = Menu.FIRST + 7;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.linear_layout_8);        mLinearLayout = (LinearLayout)findViewById(R.id.layout);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        super.onCreateOptionsMenu(menu);        menu.add(0, VERTICAL_ID, 0, R.string.linear_layout_8_vertical);        menu.add(0, HORIZONTAL_ID, 0, R.string.linear_layout_8_horizontal);        menu.add(0, TOP_ID, 0, R.string.linear_layout_8_top);        menu.add(0, MIDDLE_ID, 0, R.string.linear_layout_8_middle);        menu.add(0, BOTTOM_ID, 0, R.string.linear_layout_8_bottom);        menu.add(0, LEFT_ID, 0, R.string.linear_layout_8_left);        menu.add(0, CENTER_ID, 0, R.string.linear_layout_8_center);        menu.add(0, RIGHT_ID, 0, R.string.linear_layout_8_right);        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        switch (item.getItemId()) {        case VERTICAL_ID:            mLinearLayout.setOrientation(LinearLayout.VERTICAL);            return true;        case HORIZONTAL_ID:            mLinearLayout.setOrientation(LinearLayout.HORIZONTAL);            return true;        case TOP_ID:            mLinearLayout.setVerticalGravity(Gravity.TOP);            return true;        case MIDDLE_ID:            mLinearLayout.setVerticalGravity(Gravity.CENTER_VERTICAL);            return true;        case BOTTOM_ID:            mLinearLayout.setVerticalGravity(Gravity.BOTTOM);            return true;        case LEFT_ID:            mLinearLayout.setHorizontalGravity(Gravity.LEFT);            return true;        case CENTER_ID:            mLinearLayout.setHorizontalGravity(Gravity.CENTER_HORIZONTAL);            return true;        case RIGHT_ID:            mLinearLayout.setHorizontalGravity(Gravity.RIGHT);            return true;        }        return super.onOptionsItemSelected(item);    }}