AccountSetupFragment.java revision ae980cd685a867b3fecfd38c876fd18d98b7c86b
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 17package com.android.email.activity.setup; 18 19import android.app.Fragment; 20import android.os.Bundle; 21import android.view.LayoutInflater; 22import android.view.View; 23import android.view.ViewGroup; 24import android.widget.TextView; 25 26import com.android.email.R; 27import com.android.email.activity.UiUtilities; 28import com.google.common.annotations.VisibleForTesting; 29 30/** 31 * Superclass for setup UI fragments. 32 * Currently holds a super-interface for the callbacks, as well as the state it was launched for so 33 * we can unwind things correctly when the user navigates the back stack. 34 */ 35public class AccountSetupFragment extends Fragment implements View.OnClickListener { 36 private static final String SAVESTATE_STATE = "AccountSetupFragment.state"; 37 private int mState; 38 39 protected View mNextButton; 40 protected View mPreviousButton; 41 42 public interface Callback { 43 void onNextButton(); 44 void onBackPressed(); 45 } 46 47 @Override 48 public void onCreate(Bundle savedInstanceState) { 49 super.onCreate(savedInstanceState); 50 if (savedInstanceState != null) { 51 mState = savedInstanceState.getInt(SAVESTATE_STATE); 52 } 53 } 54 55 @Override 56 public void onSaveInstanceState(Bundle outState) { 57 super.onSaveInstanceState(outState); 58 outState.putInt(SAVESTATE_STATE, mState); 59 } 60 61 public void setState(int state) { 62 mState = state; 63 } 64 65 public int getState() { 66 return mState; 67 } 68 69 /** 70 * This method wraps the given content layout with the chrome appropriate for the account setup 71 * flow. It also attaches itself as a click handler to the previous and next buttons. 72 * 73 * @param inflater LayoutInflater scoped to the appropriate context 74 * @param container ViewGroup to inflate the view into 75 * @param contentLayout Resource ID of the main content layout to insert into the template 76 * @param headline Resource ID of the headline string 77 * @return Fully inflated view hierarchy. 78 */ 79 protected View inflateTemplatedView(final LayoutInflater inflater, final ViewGroup container, 80 final int contentLayout, final int headline) { 81 final View template = inflater.inflate(R.layout.account_setup_template, container, false); 82 83 TextView headlineView = UiUtilities.getView(template, R.id.headline); 84 headlineView.setText(headline); 85 86 final ViewGroup contentContainer = 87 (ViewGroup) template.findViewById(R.id.setup_fragment_content); 88 inflater.inflate(contentLayout, contentContainer, true); 89 90 mNextButton = UiUtilities.getView(template, R.id.next); 91 mNextButton.setOnClickListener(this); 92 mPreviousButton = UiUtilities.getView(template, R.id.previous); 93 mPreviousButton.setOnClickListener(this); 94 return template; 95 } 96 97 @Override 98 public void onClick(View v) { 99 final int viewId = v.getId(); 100 final Callback callback = (Callback) getActivity(); 101 102 if (viewId == R.id.next) { 103 callback.onNextButton(); 104 } else if (viewId == R.id.previous) { 105 callback.onBackPressed(); 106 } 107 } 108 109 public void setNextButtonEnabled(boolean enabled) { 110 if (mNextButton != null) { 111 mNextButton.setEnabled(enabled); 112 } 113 } 114 115 /** 116 * Set visibility of the "previous" button 117 * @param visibility {@link View#INVISIBLE}, {@link View#VISIBLE}, {@link View#GONE} 118 */ 119 public void setPreviousButtonVisibility(int visibility) { 120 mPreviousButton.setVisibility(visibility); 121 } 122 123 /** 124 * Set the visibility of the "next" button 125 * @param visibility {@link View#INVISIBLE}, {@link View#VISIBLE}, {@link View#GONE} 126 */ 127 public void setNextButtonVisibility(int visibility) { 128 mNextButton.setVisibility(visibility); 129 } 130} 131