小编use*_*301的帖子

在我的项目中需要通过蓝牙打印机打印Pdf文件.我写了一个代码,通过pdf打印它适用于文本,

但我想在蓝牙打印机上打印PDF文件.

我的java代码打印文本

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lv= (ListView) findViewById(R.id.listView1);
     //   listdata(lv);
        try {

        // we are goin to have three buttons for specific functions
        Button openButton = (Button) findViewById(R.id.open);
        Button sendButton = (Button) findViewById(R.id.send);
        Button closeButton = (Button) findViewById(R.id.close);
        Button btnco= (Button) findViewById(R.id.btnconnect);

        btnco.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                try {
                    findBT();
                    openBT();
                } catch (Exception ex) {
                }
            }
        });
        myLabel = (TextView) findViewById(R.id.label);
        myTextbox = …