android.app.Instrumentation#getUiAutomation ( )源码实例Demo

/** Private constructor. Clients should use {@link UiDevice#getInstance(Instrumentation)}. */
private UiDevice(Instrumentation instrumentation) {
    mInstrumentation = instrumentation;
    UiAutomation uiAutomation = instrumentation.getUiAutomation();
    mUiAutomationBridge = new InstrumentationUiAutomatorBridge(
            instrumentation.getContext(), uiAutomation);

    // Enable multi-window support for API level 21 and up
    if (UiDevice.API_LEVEL_ACTUAL >= Build.VERSION_CODES.LOLLIPOP) {
        // Subscribe to window information
        AccessibilityServiceInfo info = uiAutomation.getServiceInfo();
        info.flags |= AccessibilityServiceInfo.FLAG_RETRIEVE_INTERACTIVE_WINDOWS;
        uiAutomation.setServiceInfo(info);
    }
}
 

private AtraceLogger(Instrumentation instrumentation) {
  uiAutomation = instrumentation.getUiAutomation();
}