1 /* 2 * Copyright (C) 2014 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 17 package com.example.android.wearable.gridviewpager; 18 19 import android.app.Activity; 20 import android.content.res.Resources; 21 import android.os.Bundle; 22 import android.support.wearable.view.DotsPageIndicator; 23 import android.support.wearable.view.GridViewPager; 24 import android.view.View; 25 import android.view.View.OnApplyWindowInsetsListener; 26 import android.view.WindowInsets; 27 28 public class MainActivity extends Activity { 29 30 @Override 31 protected void onCreate(Bundle savedInstanceState) { 32 super.onCreate(savedInstanceState); 33 setContentView(R.layout.activity_main); 34 final Resources res = getResources(); 35 final GridViewPager pager = (GridViewPager) findViewById(R.id.pager); 36 pager.setOnApplyWindowInsetsListener(new OnApplyWindowInsetsListener() { 37 @Override 38 public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) { 39 // Adjust page margins: 40 // A little extra horizontal spacing between pages looks a bit 41 // less crowded on a round display. 42 final boolean round = insets.isRound(); 43 int rowMargin = res.getDimensionPixelOffset(R.dimen.page_row_margin); 44 int colMargin = res.getDimensionPixelOffset(round ? 45 R.dimen.page_column_margin_round : R.dimen.page_column_margin); 46 pager.setPageMargins(rowMargin, colMargin); 47 48 // GridViewPager relies on insets to properly handle 49 // layout for round displays. They must be explicitly 50 // applied since this listener has taken them over. 51 pager.onApplyWindowInsets(insets); 52 return insets; 53 } 54 }); 55 pager.setAdapter(new SampleGridPagerAdapter(this, getFragmentManager())); 56 DotsPageIndicator dotsPageIndicator = (DotsPageIndicator) findViewById(R.id.page_indicator); 57 dotsPageIndicator.setPager(pager); 58 } 59 } 60
