安卓創建新線程和更新ui線程

1,創建新線程

new Thread(new Runnable() {
                    @Override
                    public void run() {
                        Log.i(TAG, "run: 線程");
                    }

2,更新ui

getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        Log.i(TAG, "更新ui線程! ");
                    }
                });

3,錯誤

"Only the original thread that created a view hierarchy can touch its views."

這個錯誤就是因爲沒有在ui線程中更新ui導致的