ClipboardManager tvCopy = (ClipboardManager) getBaseActivity().getSystemService(Context.CLIPBOARD_SERVICE);
tvCopy.setText("XXX");

/**
 * 跳转到微信
 */
private void getWechatApi(){
  try {
    Intent intent = new Intent(Intent.ACTION_MAIN);
    ComponentName cmp = new ComponentName("com.tencent.mm","com.tencent.mm.ui.LauncherUI");
    intent.addCategory(Intent.CATEGORY_LAUNCHER);
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intent.setComponent(cmp);
    startActivity(intent);
  } catch (ActivityNotFoundException e) {
    // TODO: handle exception
    getBaseActivity().showToastLong("检查到您手机没有安装微信，请安装后使用该功能");
  }
}

ClipboardManager tvCopy = (ClipboardManager) getBaseActivity().getSystemService(Context.CLIPBOARD_SERVICE);
tvCopy.setText("XXX");

tv.getText().toString().trim();

ClipboardManager tvPaste = (ClipboardManager) getBaseActivity().getSystemService(Context.CLIPBOARD_SERVICE);
String content = tvPaste.getText().toString().trim();