public void RestartGame(){
    //清除数据
    mWhiteArray.clear();
    mBlackArray.clear();
    mIsGameOver = false;
    mIsWhiteWinner = false;

    invalidate();
}

public class MainActivity extends AppCompatActivity {

    private wuziqiPanel wuziqiPanel;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        wuziqiPanel=(wuziqiPanel) findViewById(R.id.id_wuziqi);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main,menu);
        return true;
    }

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        int id=item.getItemId();
        if(id==R.id.action_settings) {
            wuziqiPanel.start();
            return true;
        }
        return super.onContextItemSelected(item);
    }
}

<com.msz_wuziqi.wuziqiPanel
    android:id="@+id/id.wuziqi"
    android:layout_centerInParent="true"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    />