Ben Kwa | c42fa40 | 2015-09-16 08:04:37 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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.android.documentsui; |
| 18 | |
| 19 | import android.annotation.Nullable; |
| 20 | import android.app.Fragment; |
| 21 | import android.app.FragmentManager; |
| 22 | import android.app.FragmentTransaction; |
| 23 | import android.os.Bundle; |
| 24 | import android.view.LayoutInflater; |
| 25 | import android.view.View; |
| 26 | import android.view.ViewGroup; |
| 27 | import android.widget.Button; |
| 28 | import android.widget.ImageView; |
| 29 | import android.widget.TextView; |
| 30 | |
| 31 | /** |
| 32 | * A message bar displaying some info/error messages and a Dismiss button. |
| 33 | */ |
| 34 | public class MessageBar extends Fragment { |
| 35 | private View mView; |
| 36 | private ViewGroup mContainer; |
| 37 | |
| 38 | /** |
| 39 | * Creates an instance of a MessageBar. Note that the new MessagBar is not visible by default, |
| 40 | * and has to be shown by calling MessageBar.show. |
| 41 | */ |
| 42 | public static MessageBar create(FragmentManager fm) { |
| 43 | final MessageBar fragment = new MessageBar(); |
| 44 | |
| 45 | final FragmentTransaction ft = fm.beginTransaction(); |
| 46 | ft.replace(R.id.container_message_bar, fragment); |
| 47 | ft.commitAllowingStateLoss(); |
| 48 | |
| 49 | return fragment; |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Sets the info message. Can be null, in which case no info message will be displayed. The |
| 54 | * message bar layout will be adjusted accordingly. |
| 55 | */ |
| 56 | public void setInfo(@Nullable String info) { |
| 57 | View infoContainer = mView.findViewById(R.id.container_info); |
| 58 | if (info != null) { |
| 59 | TextView infoText = (TextView) mView.findViewById(R.id.textview_info); |
| 60 | infoText.setText(info); |
| 61 | infoContainer.setVisibility(View.VISIBLE); |
| 62 | } else { |
| 63 | infoContainer.setVisibility(View.GONE); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | /** |
| 68 | * Sets the error message. Can be null, in which case no error message will be displayed. The |
| 69 | * message bar layout will be adjusted accordingly. |
| 70 | */ |
| 71 | public void setError(@Nullable String error) { |
Ben Kwa | 379e176 | 2015-09-21 10:49:52 -0700 | [diff] [blame] | 72 | View errorView = mView.findViewById(R.id.container_error); |
Ben Kwa | c42fa40 | 2015-09-16 08:04:37 -0700 | [diff] [blame] | 73 | if (error != null) { |
| 74 | TextView errorText = (TextView) mView.findViewById(R.id.textview_error); |
| 75 | errorText.setText(error); |
| 76 | errorView.setVisibility(View.VISIBLE); |
| 77 | } else { |
| 78 | errorView.setVisibility(View.GONE); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | @Override |
| 83 | public View onCreateView( |
| 84 | LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { |
| 85 | |
| 86 | mView = inflater.inflate(R.layout.fragment_message_bar, container, false); |
| 87 | |
| 88 | ImageView infoIcon = (ImageView) mView.findViewById(R.id.icon_info); |
| 89 | infoIcon.setImageResource(R.drawable.ic_dialog_info); |
| 90 | |
| 91 | ImageView errorIcon = (ImageView) mView.findViewById(R.id.icon_error); |
| 92 | errorIcon.setImageResource(R.drawable.ic_dialog_alert); |
| 93 | |
| 94 | Button dismiss = (Button) mView.findViewById(R.id.button_dismiss); |
| 95 | dismiss.setOnClickListener( |
| 96 | new View.OnClickListener() { |
| 97 | @Override |
| 98 | public void onClick(View v) { |
| 99 | hide(); |
| 100 | } |
| 101 | }); |
| 102 | |
| 103 | mContainer = container; |
| 104 | |
| 105 | return mView; |
| 106 | } |
| 107 | |
Steve McKay | f68210e | 2015-11-03 15:23:16 -0800 | [diff] [blame] | 108 | public void hide() { |
Ben Kwa | c42fa40 | 2015-09-16 08:04:37 -0700 | [diff] [blame] | 109 | // The container view is used to show/hide the error bar. If a container is not provided, |
| 110 | // fall back to showing/hiding the error bar View, which also works, but does not provide |
| 111 | // the same animated transition. |
| 112 | if (mContainer != null) { |
| 113 | mContainer.setVisibility(View.GONE); |
| 114 | } else { |
| 115 | mView.setVisibility(View.GONE); |
| 116 | } |
| 117 | } |
| 118 | |
Steve McKay | f68210e | 2015-11-03 15:23:16 -0800 | [diff] [blame] | 119 | public void show() { |
Ben Kwa | c42fa40 | 2015-09-16 08:04:37 -0700 | [diff] [blame] | 120 | // The container view is used to show/hide the error bar. If a container is not provided, |
| 121 | // fall back to showing/hiding the error bar View, which also works, but does not provide |
| 122 | // the same animated transition. |
| 123 | if (mContainer != null) { |
| 124 | mContainer.setVisibility(View.VISIBLE); |
| 125 | } else { |
| 126 | mView.setVisibility(View.VISIBLE); |
| 127 | } |
| 128 | } |
| 129 | } |