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