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.dialer.widget; 18 19 import android.content.Context; 20 import android.content.res.ColorStateList; 21 import android.support.annotation.StringRes; 22 import android.util.AttributeSet; 23 import android.view.LayoutInflater; 24 import android.view.View; 25 import android.widget.ImageView; 26 import android.widget.LinearLayout; 27 import android.widget.TextView; 28 import com.android.dialer.theme.base.ThemeComponent; 29 30 public class EmptyContentView extends LinearLayout implements View.OnClickListener { 31 32 /** Listener to call when action button is clicked. */ 33 public interface OnEmptyViewActionButtonClickedListener { onEmptyViewActionButtonClicked()34 void onEmptyViewActionButtonClicked(); 35 } 36 37 public static final int NO_LABEL = 0; 38 public static final int NO_IMAGE = 0; 39 40 private ImageView imageView; 41 private TextView descriptionView; 42 private TextView actionView; 43 private OnEmptyViewActionButtonClickedListener onActionButtonClickedListener; 44 45 private @StringRes int actionLabel; 46 EmptyContentView(Context context)47 public EmptyContentView(Context context) { 48 this(context, null); 49 } 50 EmptyContentView(Context context, AttributeSet attrs)51 public EmptyContentView(Context context, AttributeSet attrs) { 52 this(context, attrs, 0); 53 } 54 EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr)55 public EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr) { 56 this(context, attrs, defStyleAttr, 0); 57 } 58 EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)59 public EmptyContentView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 60 super(context, attrs, defStyleAttr, defStyleRes); 61 inflateLayout(); 62 63 // Don't let touches fall through the empty view. 64 setClickable(true); 65 imageView = (ImageView) findViewById(R.id.empty_list_view_image); 66 descriptionView = (TextView) findViewById(R.id.empty_list_view_message); 67 actionView = (TextView) findViewById(R.id.empty_list_view_action); 68 actionView.setOnClickListener(this); 69 70 imageView.setImageTintList( 71 ColorStateList.valueOf(ThemeComponent.get(context).theme().getColorIconSecondary())); 72 } 73 setDescription(int resourceId)74 public void setDescription(int resourceId) { 75 if (resourceId == NO_LABEL) { 76 descriptionView.setText(null); 77 descriptionView.setVisibility(View.GONE); 78 } else { 79 descriptionView.setText(resourceId); 80 descriptionView.setVisibility(View.VISIBLE); 81 } 82 } 83 setImage(int resourceId)84 public void setImage(int resourceId) { 85 if (resourceId == NO_LABEL) { 86 imageView.setImageDrawable(null); 87 imageView.setVisibility(View.GONE); 88 } else { 89 imageView.setImageResource(resourceId); 90 imageView.setVisibility(View.VISIBLE); 91 } 92 } 93 setActionLabel(@tringRes int resourceId)94 public void setActionLabel(@StringRes int resourceId) { 95 actionLabel = resourceId; 96 if (resourceId == NO_LABEL) { 97 actionView.setText(null); 98 actionView.setVisibility(View.GONE); 99 } else { 100 actionView.setText(resourceId); 101 actionView.setVisibility(View.VISIBLE); 102 } 103 } 104 getActionLabel()105 public @StringRes int getActionLabel() { 106 return actionLabel; 107 } 108 isShowingContent()109 public boolean isShowingContent() { 110 return imageView.getVisibility() == View.VISIBLE 111 || descriptionView.getVisibility() == View.VISIBLE 112 || actionView.getVisibility() == View.VISIBLE; 113 } 114 setActionClickedListener(OnEmptyViewActionButtonClickedListener listener)115 public void setActionClickedListener(OnEmptyViewActionButtonClickedListener listener) { 116 onActionButtonClickedListener = listener; 117 } 118 119 @Override onClick(View v)120 public void onClick(View v) { 121 if (onActionButtonClickedListener != null) { 122 onActionButtonClickedListener.onEmptyViewActionButtonClicked(); 123 } 124 } 125 inflateLayout()126 protected void inflateLayout() { 127 setOrientation(LinearLayout.VERTICAL); 128 final LayoutInflater inflater = 129 (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); 130 inflater.inflate(R.layout.empty_content_view, this); 131 } 132 } 133