public void setAutoFocus(boolean state) {
if (mCamera != null && mPreviewing) {
if (state == mAutoFocus) {
return;
}
mAutoFocus = state;
if (mAutoFocus) {
if (mSurfaceCreated) { // check if surface created before using autofocus
Log.v(TAG, "Starting autofocus");
safeAutoFocus();
} else {
scheduleAutoFocus(); // wait 1 sec and then do check again
}
} else {
Log.v(TAG, "Cancelling autofocus");
mCamera.cancelAutoFocus();
}
}
}
public void showCameraPreview() {
if (mCamera != null) {
try {
mPreviewing = true;
setupCameraParameters();
mCamera.setPreviewDisplay(getHolder());
mCamera.setDisplayOrientation(getDisplayOrientation());
mCamera.setOneShotPreviewCallback(mPreviewCallback);
mCamera.startPreview();
if (mAutoFocus) {
if (mSurfaceCreated) { // check if surface created before using autofocus
safeAutoFocus();
} else {
scheduleAutoFocus(); // wait 1 sec and then do check again
}
}
} catch (Exception e) {
Log.e(TAG, e.toString(), e);
}
}
}
public void run() {
if (mCamera != null && mPreviewing && mAutoFocus && mSurfaceCreated) {
safeAutoFocus();
}
}