1 final FloatingActionButton faBtn = (FloatingActionButton) this.findViewById(R.id.faBtn); 2         faBtn.setOnClickListener(new View.OnClickListener() { 3             @Override 4             public void onClick(View v) { 5                 final Snackbar snackbar = Snackbar.make(faBtn, "你点击按钮", Snackbar.LENGTH_LONG); 6                 snackbar.show(); 7                 snackbar.setAction("知道了", new View.OnClickListener() { 8                     @Override 9                     public void onClick(View v) {10                         snackbar.dismiss();11                     }12                 });13             }14 });