Java 如果共享未首先单击副本,则禁止单击该共享

Java 如果共享未首先单击副本,则禁止单击该共享,java,android,Java,Android,我的代码如下所示: public boolean onOptionsItemSelected(MenuItem item){ switch (item.getItemId()) { case R.id.share: // send copy text Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND); sh

我的代码如下所示:

public boolean onOptionsItemSelected(MenuItem item){

    switch (item.getItemId()) {

        case R.id.share:

            // send copy text
            Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
            sharingIntent.setType("text/plain");
            String shareBody = returnedText.getText().toString();
            String shareSub = "";
            sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, shareSub);
            sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
            startActivity(Intent.createChooser(sharingIntent, "Share using"));
            Toast.makeText(getApplicationContext(),getString(R.string.send_text), Toast.LENGTH_SHORT).show();

            break;

    }

    switch (item.getItemId()) {

        case R.id.copy:

            // copy text to clipboard
            ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
            clipboard.setText(returnedText.getText());
            Toast.makeText(getApplicationContext(),getString(R.string.copy_text), Toast.LENGTH_SHORT).show();

            break;

    }

    return super.onOptionsItemSelected(item);

}

我需要什么?如果他们没有先单击副本,则禁止单击共享。如果他们没有先单击进行复制,应用程序会通知Toast消息他们必须复制文本,然后,当他们单击复制时,要共享的菜单项会有自己的功能

试试这个,不确定它是否有效

  • 使剪贴簿管理器全球化
  • 如果R.id.share:

    if (clipboardManager.hasPrimaryClip()){
            // do what ever.
    }else {
            Toast.makeText(getApplicationContext(),"please click on copy first and try 
    again",Toast.LENGTH_LONG).show();
    }