优雅获取界面布局耗时

常规方式

• 耦合

aop/ArtHook

• 背景：获取每个界面加载耗时
• 实现：覆写方法、手动埋点
• 切Acitivity的setContentView
• @Around（“execution（* android.app.Activity.setContentView(..）”）

ARTHook实现

• 切Activity的setContentView
• 获取任一控件耗时
• 低侵入性
• LayoutInflater.Factory
• LayoutInflaterCompat.setFactory2();

 LayoutInflaterCompat.setFactory2(getLayoutInflater(), new LayoutInflater.Factory2() {
            @Nullable
            @Override
            public View onCreateView(@Nullable View parent, @NonNull String name, @NonNull Context context, @NonNull AttributeSet attrs) {
                if (TextUtils.equals("TextView", name)) {

                }
                long startTime = System.currentTimeMillis();
                View view = getDelegate().createView(parent, name, context, attrs);
                Log.i("aa", name + " cost " + (System.currentTimeMillis() - startTime));
                return view;
            }

            @Nullable
            @Override
            public View onCreateView(@NonNull String name, @NonNull Context context, @NonNull AttributeSet attrs) {
                return null;
            }
        });

• 在activity 的super.onCreate(savedInstanceState);前设置