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Free H14-231_V1.0 Exam Braindumps (page: 7)

Page 6 of 176
PDF with 699 Questions

If a developer wants to use the video playback function of HarmonyOS, which of the following subsystems will he use?

  1. Media Subsystem
  2. Safety subsystem
  3. AI subsystem
  4. Location Services Subsystem

Answer(s): A



A developer is developing a ticket booking application, in the selection of the location of the ticket, you need to use the slide selector Picker, in order to highlight the selected text, the developer sets the rendering effect that the selected text margin is greater than the ordinary text margin.
Which of the following settings are correct?

  1. <Picker...... ohos:selected_normal_text_margin_ratio="5.0"/>
  2. Picker.setSelectNormal TextMarginRatio(5.0f);
  3. <Picker...... ohos:selected_normal_text_margin_ratio="0.5"/>
  4. Picker.setSelectNormalTextMarginRatio(5.0);

Answer(s): B



Which description of the HarmonyOS clipboard can be correctly interpreted in the following scenarios?

  1. can be copied in application A, but cannot be pasted in application B
  2. can be copied and pasted into app B in app A
  3. Only replication is supported
  4. Only clipping is supported

Answer(s): B



The HarmonyOS video module supports the development of video services and the opening of the ecosystem, allowing developers to easily play, operate, and develop new functions of video media through the open interfaces. Video playback includes playback controls, playback settings, and playback queries, such as start/stop playback, playback speed settings, and whether to loop playback.
When developing a video playback feature, which of the following steps is correct?

  1. Create a Player instance construct a data source object and set the media source call method prepare(), call method play(), call method stop( call method release()
  2. Create a Player instance call the prepare() play() construct the data source object and set the media source call the stop() release().
  3. Construct a data source object and set the media source create a Player instance call method play(), call method prepare(), call method stop( call method release()
  4. Call the prepare() method create a Plawer instance construct a data source object and set the media source call method create a Player instance, Play() call method stop() call method release()

Answer(s): A






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