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android14截屏

news 2025/7/19 15:38:48

这里写自定义目录标题

systemui的做法
- 命令行写法
- - MediaProjection写法

systemui的做法

frameworks/base/packages/SystemUI/src/com/android/systemui/screenshot/ImageCaptureImpl.kt

package com.android.systemui.screenshotimport android.app.IActivityTaskManager
import android.graphics.Bitmap
import android.graphics.Rect
import android.view.IWindowManager
import android.window.ScreenCapture
import android.window.ScreenCapture.CaptureArgs
import com.android.systemui.dagger.SysUISingleton
import com.android.systemui.dagger.qualifiers.Background
import javax.inject.Inject
import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.withContextprivate const val TAG = "ImageCaptureImpl"@SysUISingleton
open class ImageCaptureImpl @Inject constructor(private val windowManager: IWindowManager,private val atmService: IActivityTaskManager,@Background private val bgContext: CoroutineDispatcher
) : ImageCapture {override fun captureDisplay(displayId: Int, crop: Rect?): Bitmap? {val captureArgs = CaptureArgs.Builder().setSourceCrop(crop).build()val syncScreenCapture = ScreenCapture.createSyncCaptureListener()windowManager.captureDisplay(displayId, captureArgs, syncScreenCapture)val buffer = syncScreenCapture.getBuffer()return buffer?.asBitmap()}override suspend fun captureTask(taskId: Int): Bitmap? {val snapshot = withContext(bgContext) {atmService.takeTaskSnapshot(taskId, false /* updateCache */)} ?: return nullreturn Bitmap.wrapHardwareBuffer(snapshot.hardwareBuffer, snapshot.colorSpace)}
}