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      1 /*
      2  * Copyright (C) 2016 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.internal.app;
     18 
     19 import android.content.Context;
     20 import android.content.DialogInterface;
     21 import android.text.TextUtils;
     22 import android.view.Gravity;
     23 import android.view.View;
     24 import android.view.ViewGroup;
     25 import android.view.Window;
     26 import android.widget.FrameLayout;
     27 import android.widget.ImageView;
     28 import android.widget.ScrollView;
     29 import android.widget.TextView;
     30 
     31 import com.android.internal.app.AlertController;
     32 import com.android.internal.R;
     33 
     34 public class MicroAlertController extends AlertController {
     35     public MicroAlertController(Context context, DialogInterface di, Window window) {
     36         super(context, di, window);
     37     }
     38 
     39     @Override
     40     protected void setupContent(ViewGroup contentPanel) {
     41         // Special case for small screen - the scroll view is higher in hierarchy
     42         mScrollView = (ScrollView) mWindow.findViewById(R.id.scrollView);
     43 
     44         // Special case for users that only want to display a String
     45         mMessageView = (TextView) contentPanel.findViewById(R.id.message);
     46         if (mMessageView == null) {
     47             return;
     48         }
     49 
     50         if (mMessage != null) {
     51             mMessageView.setText(mMessage);
     52         } else {
     53             // no message, remove associated views
     54             mMessageView.setVisibility(View.GONE);
     55             contentPanel.removeView(mMessageView);
     56 
     57             if (mListView != null) {
     58                 // has ListView, swap scrollView with ListView
     59 
     60                 // move topPanel into top of scrollParent
     61                 View topPanel = mScrollView.findViewById(R.id.topPanel);
     62                 ((ViewGroup) topPanel.getParent()).removeView(topPanel);
     63                 FrameLayout.LayoutParams topParams =
     64                         new FrameLayout.LayoutParams(topPanel.getLayoutParams());
     65                 topParams.gravity = Gravity.TOP;
     66                 topPanel.setLayoutParams(topParams);
     67 
     68                 // move buttonPanel into bottom of scrollParent
     69                 View buttonPanel = mScrollView.findViewById(R.id.buttonPanel);
     70                 ((ViewGroup) buttonPanel.getParent()).removeView(buttonPanel);
     71                 FrameLayout.LayoutParams buttonParams =
     72                         new FrameLayout.LayoutParams(buttonPanel.getLayoutParams());
     73                 buttonParams.gravity = Gravity.BOTTOM;
     74                 buttonPanel.setLayoutParams(buttonParams);
     75 
     76                 // remove scrollview
     77                 final ViewGroup scrollParent = (ViewGroup) mScrollView.getParent();
     78                 final int childIndex = scrollParent.indexOfChild(mScrollView);
     79                 scrollParent.removeViewAt(childIndex);
     80 
     81                 // add list view
     82                 scrollParent.addView(mListView,
     83                         new ViewGroup.LayoutParams(
     84                                 ViewGroup.LayoutParams.MATCH_PARENT,
     85                                 ViewGroup.LayoutParams.MATCH_PARENT));
     86 
     87                 // add top and button panel
     88                 scrollParent.addView(topPanel);
     89                 scrollParent.addView(buttonPanel);
     90             } else {
     91                 // no content, just hide everything
     92                 contentPanel.setVisibility(View.GONE);
     93             }
     94         }
     95     }
     96 
     97     @Override
     98     protected void setupTitle(ViewGroup topPanel) {
     99         super.setupTitle(topPanel);
    100         if (topPanel.getVisibility() == View.GONE) {
    101             topPanel.setVisibility(View.INVISIBLE);
    102         }
    103     }
    104 
    105     @Override
    106     protected void setupButtons(ViewGroup buttonPanel) {
    107         super.setupButtons(buttonPanel);
    108         if (buttonPanel.getVisibility() == View.GONE) {
    109             buttonPanel.setVisibility(View.INVISIBLE);
    110         }
    111     }
    112 }
    113