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      1 /*
      2  * Copyright (C) 2011 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.test.layout;
     18 
     19 import android.app.Activity;
     20 import android.content.Context;
     21 import android.os.Bundle;
     22 import android.view.View;
     23 import android.view.ViewGroup;
     24 import android.widget.Button;
     25 import android.widget.EditText;
     26 import android.widget.GridLayout;
     27 import android.widget.TextView;
     28 
     29 import static android.widget.GridLayout.*;
     30 
     31 public class AlignmentTest  extends Activity {
     32 
     33     public static final String[] HORIZONTAL_NAMES = {"LEFT", "center", "east", "fill"};
     34     public static final Alignment[] HORIZONTAL_ALIGNMENTS = {LEFT, CENTER, RIGHT, FILL};
     35     public static final String[] VERTICAL_NAMES = {"north", "center", "baseline", "south", "fill"};
     36     public static final Alignment[] VERTICAL_ALIGNMENTS = {TOP, CENTER, BASELINE, BOTTOM, FILL};
     37     private static Context CONTEXT;
     38 
     39     public static interface ViewFactory {
     40         View create(String name, int size);
     41     }
     42 
     43     public static final ViewFactory BUTTON_FACTORY = new ViewFactory() {
     44         public View create(String name, int size) {
     45             Button result = new Button(CONTEXT);
     46             result.setText(name);
     47            result.setOnClickListener(new OnClickListener() {
     48                @Override
     49                public void onClick(View v) {
     50                     animate(v);
     51                }
     52            });
     53             return result;
     54         }
     55     };
     56 
     57     public static final ViewFactory LABEL_FACTORY = new ViewFactory() {
     58         public View create(String name, int size) {
     59             TextView result = new TextView(CONTEXT);
     60             result.setText(name);
     61             result.setTextSize(40);
     62             return result;
     63         }
     64     };
     65 
     66     public static final ViewFactory TEXT_FIELD_FACTORY = new ViewFactory() {
     67         public View create(String name, int size) {
     68             EditText result = new EditText(CONTEXT);
     69             result.setText(name);
     70             return result;
     71         }
     72     };
     73 
     74     public static final ViewFactory[] FACTORIES =
     75                             {BUTTON_FACTORY, LABEL_FACTORY, TEXT_FIELD_FACTORY};
     76 
     77     public static ViewGroup create(Context context1) {
     78         CONTEXT = context1;
     79         GridLayout container = new GridLayout(context1);
     80         container.setUseDefaultMargins(true);
     81 
     82         for (int i = 0; i < VERTICAL_ALIGNMENTS.length; i++) {
     83             Alignment va = VERTICAL_ALIGNMENTS[i];
     84             for (int j = 0; j < HORIZONTAL_ALIGNMENTS.length; j++) {
     85                 Alignment ha = HORIZONTAL_ALIGNMENTS[j];
     86                 LayoutParams layoutParams = new LayoutParams(spec(i, va), spec(j, ha));
     87                 String name = VERTICAL_NAMES[i] + "-" + HORIZONTAL_NAMES[j];
     88                 ViewFactory factory = FACTORIES[(i + j) % FACTORIES.length];
     89                 container.addView(factory.create(name, 20), layoutParams);
     90             }
     91         }
     92 
     93         return container;
     94     }
     95 
     96     public static void animate(View v) {
     97 
     98         long start = System.currentTimeMillis();
     99         int N = 1000;
    100         for (int i = 0; i < N; i++) {
    101             ViewGroup.LayoutParams lp = v.getLayoutParams();
    102             lp.width += 1; // width;
    103             lp.height += 1; // height;
    104             v.requestLayout();
    105             GridLayout p = (GridLayout) v.getParent();
    106             p.layout(0, 0, 1000 + (i % 2), 500 + (i % 2));
    107         }
    108         float time = (float) (System.currentTimeMillis() - start) / N * 1000;
    109         System.out.println("Time: " + time + "mics");
    110     }
    111 
    112     protected void onCreate(Bundle savedInstanceState) {
    113         super.onCreate(savedInstanceState);
    114         setContentView(create(getBaseContext()));
    115     }
    116 
    117 }