我正在嘗試構(gòu)建基于 CameraX 的相機應(yīng)用程序，并希望為相機預(yù)覽啟用散景（模糊）效果。這可能是由 CameraX 擴展來完成的，但是如何啟用它們呢？我已經(jīng)在Android Developer Docs閱讀了有關(guān)供應(yīng)商擴展的文章。我嘗試重用他們的方法，但示例中顯示的類未包含在 CameraX 中alpha-02import androidx.camera.extensions.BokehExtender;void onCreate() { // Create a Builder same as in normal workflow. ImageCaptureConfig.Builder builder = new ImageCaptureConfig.Builder(); // Create a Extender object which can be used to apply extension // configurations. BokehImageCaptureExtender bokehImageCapture = new BokehImageCaptureExtender(builder); // Query if extension is available (optional). if (bokehImageCapture.isExtensionAvailable()) { // Enable the extension if available. bokehImageCapture.enableExtension(); } // Finish constructing configuration with the same flow as when not using // extensions. ImageCaptureConfig config = builder.build(); ImageCapture useCase = new ImageCapture(config); CameraX.bindToLifecycle((LifecycleOwner)this, useCase);}我預(yù)計BokehImageCaptureExtender會導(dǎo)入，但看起來仍未提供。而且整個包裹androidx.camera.extensions都不見了。這些類可以在官方AndroidX git 存儲庫中找到，但是如果不導(dǎo)入完整的 AndroidX 項目就很難設(shè)置它。
3 回答
慕虎7371278
TA貢獻1802條經(jīng)驗 獲得超4個贊
Android CameraX 擴展僅存在于版本中：“1.0.0-alpha01”。
降級相機版本：//Camera Jetpack Library
def camerax_version = "1.0.0-alpha01"
implementation "androidx.camera:camera-core:$camerax_version"
implementation "androidx.camera:camera-camera2:$camerax_version"
implementation "androidx.camera:camera-extensions:$camerax_version"
夢里花落0921
TA貢獻1772條經(jīng)驗 獲得超6個贊
我剛剛注意到編輯您的問題并在此處查看您顯示的代碼示例是Java，但您將Kotlin作為標(biāo)識符。確保您使用的是正確的語言。這可能是問題所在。
這是Android 開發(fā)者文檔中的Kotlin示例：
import androidx.camera.extensions.BokehExtender
fun onCreate() {
// Create a Builder same as in normal workflow.
val builder = ImageCaptureConfig.Builder()
// Create a Extender object which can be used to apply extension
// configurations.
val bokehImageCapture = BokehImageCaptureExtender.create(builder)
// Query if extension is available (optional).
if (bokehImageCapture.isExtensionAvailable()) {
// Enable the extension if available.
bokehImageCapture.enableExtension()
}
// Finish constructing configuration with the same flow as when not using
// extensions.
val config = builder.build()
val useCase = ImageCapture(config)
CameraX.bindToLifecycle(this as LifecycleOwner, useCase)
}
這是Android 開發(fā)者文檔中的Java示例：
import androidx.camera.extensions.BokehExtender;
void onCreate() {
// Create a Builder same as in normal workflow.
ImageCaptureConfig.Builder builder = new ImageCaptureConfig.Builder();
// Create a Extender object which can be used to apply extension
// configurations.
BokehImageCaptureExtender bokehImageCapture = new
BokehImageCaptureExtender(builder);
// Query if extension is available (optional).
if (bokehImageCapture.isExtensionAvailable()) {
// Enable the extension if available.
bokehImageCapture.enableExtension();
}
// Finish constructing configuration with the same flow as when not using
// extensions.
ImageCaptureConfig config = builder.build();
ImageCapture useCase = new ImageCapture(config);
CameraX.bindToLifecycle((LifecycleOwner)this, useCase);
}
郎朗坤
TA貢獻1921條經(jīng)驗 獲得超9個贊
擴展在 google maven 上仍然不可用 https://dl.google.com/dl/android/maven2/index.html
請參閱此線程， https://stackoverflow.com/a/57177147/11861734
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