Android -进入画中画模式后显示以前的片段

@Override
protected void onUserLeaveHint() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        enterPictureInPictureMode(new PictureInPictureParams.Builder().build());
    }
}

@Override
protected void onResume() {
    super.onResume();
    // 更新UI或数据
}

private void updateData() {
    // 更新数据源
}

@Override
protected void onUserLeaveHint() {
    updateData();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        enterPictureInPictureMode(new PictureInPictureParams.Builder().build());
    }
}

private TextView textView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    textView = findViewById(R.id.textView);
}

private void updateUI() {
    textView.setText("New Content");
}

@Override
protected void onResume() {
    super.onResume();
    updateUI();
}