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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.View.OnClickListener;
     24 import android.view.ViewGroup;
     25 import android.widget.Button;
     26 import android.widget.EditText;
     27 import android.widget.GridLayout;
     28 import android.widget.GridLayout.Alignment;
     29 import android.widget.GridLayout.LayoutParams;
     30 import android.widget.TextView;
     31 
     32 import static android.widget.GridLayout.BASELINE;
     33 import static android.widget.GridLayout.BOTTOM;
     34 import static android.widget.GridLayout.CENTER;
     35 import static android.widget.GridLayout.FILL;
     36 import static android.widget.GridLayout.LEFT;
     37 import static android.widget.GridLayout.RIGHT;
     38 import static android.widget.GridLayout.TOP;
     39 import static android.widget.GridLayout.spec;
     40 
     41 public class AlignmentTest extends Activity {
     42 
     43     public static final String[] HORIZONTAL_NAMES = {"LEFT", "center", "east", "fill"};
     44     public static final Alignment[] HORIZONTAL_ALIGNMENTS = {LEFT, CENTER, RIGHT, FILL};
     45     public static final String[] VERTICAL_NAMES = {"north", "center", "baseline", "south", "fill"};
     46     public static final Alignment[] VERTICAL_ALIGNMENTS = {TOP, CENTER, BASELINE, BOTTOM, FILL};
     47     private static Context CONTEXT;
     48 
     49     public static interface ViewFactory {
     50         View create(String name, int size);
     51     }
     52 
     53     public static final ViewFactory BUTTON_FACTORY = new ViewFactory() {
     54         public View create(String name, int size) {
     55             Button result = new Button(CONTEXT);
     56             result.setText(name);
     57            result.setOnClickListener(new OnClickListener() {
     58                @Override
     59                public void onClick(View v) {
     60                     animate(v);
     61                }
     62            });
     63             return result;
     64         }
     65     };
     66 
     67     public static final ViewFactory LABEL_FACTORY = new ViewFactory() {
     68         public View create(String name, int size) {
     69             TextView result = new TextView(CONTEXT);
     70             result.setText(name);
     71             result.setTextSize(40);
     72             return result;
     73         }
     74     };
     75 
     76     public static final ViewFactory TEXT_FIELD_FACTORY = new ViewFactory() {
     77         public View create(String name, int size) {
     78             EditText result = new EditText(CONTEXT);
     79             result.setText(name);
     80             return result;
     81         }
     82     };
     83 
     84     public static final ViewFactory[] FACTORIES =
     85                             {BUTTON_FACTORY, LABEL_FACTORY, TEXT_FIELD_FACTORY};
     86 
     87     public static ViewGroup create(Context context1) {
     88         CONTEXT = context1;
     89         GridLayout container = new GridLayout(context1);
     90         container.setUseDefaultMargins(true);
     91 
     92         for (int i = 0; i < VERTICAL_ALIGNMENTS.length; i++) {
     93             Alignment va = VERTICAL_ALIGNMENTS[i];
     94             for (int j = 0; j < HORIZONTAL_ALIGNMENTS.length; j++) {
     95                 Alignment ha = HORIZONTAL_ALIGNMENTS[j];
     96                 LayoutParams layoutParams = new LayoutParams(spec(i, va), spec(j, ha));
     97                 String name = VERTICAL_NAMES[i] + "-" + HORIZONTAL_NAMES[j];
     98                 ViewFactory factory = FACTORIES[(i + j) % FACTORIES.length];
     99                 container.addView(factory.create(name, 20), layoutParams);
    100             }
    101         }
    102 
    103         return container;
    104     }
    105 
    106     public static void animate(View v) {
    107 
    108         long start = System.currentTimeMillis();
    109         int N = 1000;
    110         for (int i = 0; i < N; i++) {
    111             ViewGroup.LayoutParams lp = v.getLayoutParams();
    112             lp.width += 1; // width;
    113             lp.height += 1; // height;
    114             v.requestLayout();
    115             GridLayout p = (GridLayout) v.getParent();
    116             p.layout(0, 0, 1000 + (i % 2), 500 + (i % 2));
    117         }
    118         float time = (float) (System.currentTimeMillis() - start) / N * 1000;
    119         System.out.println("Time: " + time + "mics");
    120     }
    121 
    122     protected void onCreate(Bundle savedInstanceState) {
    123         super.onCreate(savedInstanceState);
    124         setContentView(create(getBaseContext()));
    125     }
    126 
    127 }