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获取界面布局耗时

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常规方式 复写方法、手动埋点 AOP/Art Hook实现 通过 hook setContentView 来优雅的实现布局耗时 ...

获取界面布局耗时

常规方式

复写方法、手动埋点

AOP/Art Hook实现

通过 hook setContentView 来优雅的实现布局耗时

参考Aspectjx

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@Aspect
public class PerformanceApp {

    @Around("execution(* android.app.Activity.setContentView(..))")
    public void getSetContentViewTime(ProceedingJoinPoint joinPoint) {
        Signature signature = joinPoint.getSignature();
        String name = signature.toShortString();
        long time = System.currentTimeMillis();
        try {
            joinPoint.proceed();
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
        Log.e(name + " cost " + (System.currentTimeMillis() - time));
    }
}

参考ART

总结：

无侵入性、推荐使用

扩展：获取每个控件的加载耗时

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public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        LayoutInflater.from(this).setFactory2(new LayoutInflater.Factory2() {
            @Nullable
            @Override
            public View onCreateView(@Nullable View parent, @NonNull String name, @NonNull Context context, @NonNull AttributeSet attrs) {
                long start = System.currentTimeMillis();
                View view = getDelegate().createView(parent, name, context, attrs);
                Log.e("createViewTime", "cost: " + (System.currentTimeMillis() - start));
                return view;
            }

            @Nullable
            @Override
            public View onCreateView(@NonNull String name, @NonNull Context context, @NonNull AttributeSet attrs) {
                return onCreateView(null, name, context, attrs);
            }
        });
        // 注意：需要在super前配置
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}