这个就好像是 activity 的生命周期一样，如果我们要使用自定义的 view，那么就很有必要了解一下 view 的那些能够被重写的函数的执行顺序。废话不多讲，以常用的5个函数为例子，见下文：
1 package com.example.pulltorefreshtest; 2 3 import android.content.Context; 4 import android.graphics.Canvas; 5 import android.util.AttributeSet; 6 import android.util.Log; 7 import android.view.View; 8 9 /**10 * Created by Administrator on 2015/7/12.11 */12 public class testView extends View {13 public testView(Context context, AttributeSet attrs) {14 super(context, attrs);15 }16 17 @Override18 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {19 Log.d("------","---onMeasure");20 super.onMeasure(widthMeasureSpec, heightMeasureSpec);21 }22 23 @Override24 protected void onLayout(boolean changed, int left, int top, int right, int bottom) {25 Log.d("------","---onLayout");26 super.onLayout(changed, left, top, right, bottom);27 }28 29 @Override30 protected void onFinishInflate() {31 Log.d("------","---onFinanshInflate");32 super.onFinishInflate();33 }34 35 @Override36 protected void onDraw(Canvas canvas) {37 Log.d("------","---onDraw");38 super.onDraw(canvas);39 }40 41 @Override42 protected void onSizeChanged(int w, int h, int oldw, int oldh) {43 Log.d("------","---onSizeChanged");44 super.onSizeChanged(w, h, oldw, oldh);45 }46 }
运行结果：
07-12 13:44:45.413 23734-23734/? D/------﹕ ---onFinanshInflate07-12 13:44:45.443 23734-23734/? D/------﹕ ---onMeasure07-12 13:44:45.493 23734-23734/? D/------﹕ ---onSizeChanged07-12 13:44:45.493 23734-23734/? D/------﹕ ---onLayout07-12 13:44:45.503 23734-23734/? D/------﹕ ---onMeasure07-12 13:44:45.503 23734-23734/? D/------﹕ ---onLayout07-12 13:44:45.503 23734-23734/? D/------﹕ ---onDraw