Android 2.3的camera的虚拟对焦的去除

最新推荐文章于 2025-09-08 16:34:15 发布

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最新推荐文章于 2025-09-08 16:34:15 发布

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分类专栏： Android 文章标签： android null user

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本文详细解析了在packages/apps/camera/src/com/android/camera中camera.java文件内的代码更新，包括自动对焦、取消自动对焦及清除聚焦状态等功能的实现细节。

在packages/apps/camera/src/com/android/camera 里面camera.java 里面有改动

是：

private void autoFocus() {
   // Initiate autofocus only when preview is started and snapshot is not
   // in progress.
   if (canTakePicture()) {
   mHeadUpDisplay.setEnabled(false);
   Log.v(TAG, "Start autofocus.");
   mFocusStartTime = System.currentTimeMillis();
   //mFocusState = FOCUSING; //baiduman yuanlai
   mFocusState =FOCUS_SUCCESS; //baiduman add
   updateFocusIndicator();
   mCameraDevice.autoFocus(mAutoFocusCallback);
   }
   }
   private void cancelAutoFocus() {
   // User releases half-pressed focus key.
   if (mStatus != SNAPSHOT_IN_PROGRESS && (mFocusState == FOCUSING
   || mFocusState == FOCUS_SUCCESS || mFocusState == FOCUS_FAIL)) {
   Log.v(TAG, "Cancel autofocus.");
   mHeadUpDisplay.setEnabled(true);
   mCameraDevice.cancelAutoFocus();
   }
   if (mFocusState != FOCUSING_SNAP_ON_FINISH) {
   clearFocusState();
   }
   }

   private void clearFocusState() {
   mFocusState = FOCUS_NOT_STARTED;
   updateFocusIndicator();
   }

   private void updateFocusIndicator()
{
   if (mFocusRectangle == null) return;
//baiduman cut
/*
   if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH)
{
   mFocusRectangle.showStart();
   }
else if (mFocusState == FOCUS_SUCCESS)
{
   mFocusRectangle.showSuccess();
   }
else if (mFocusState == FOCUS_FAIL)
{
   mFocusRectangle.showFail();
   }
else
{
   mFocusRectangle.clear();
   }
*/
   }

改动该处的代码就可以了