CheckBox標簽和屬性

CheckBox的作用：可以提供復選

下面是我點擊按鈕查看所選內容的代碼：定義按鈕監聽器，並在onClick方法中調用shoeAlt方法（此方法會在第二塊代碼定義）

Button btn=(Button) findViewById(R.id.btn);
        
        btn.setOnClickListener(new View.OnClickListener() {
            
            @Override
            public void onClick(View v) {
                showAlt();
                
            }
        });

接下來是定義showAlt方法（首先初始化控件，然后用isCheck方法查看，這些控件哪些被選中，如果被選中就用getText和toString方法得到控件的text）

到這里不得不說Toast

Toast給當前視圖顯示一個浮動的顯示塊，它永遠不會獲得焦點，我會在下一篇的博客中詳細解釋Toast

 

protected CheckBox run, sleep, swim, eat, playball;

    protected void showAlt() {
        run = (CheckBox) findViewById(R.id.run);
        sleep = (CheckBox) findViewById(R.id.sleep);
        swim = (CheckBox) findViewById(R.id.swim);
        eat = (CheckBox) findViewById(R.id.eat);
        playball = (CheckBox) findViewById(R.id.playball);
        StringBuffer str = new StringBuffer();
        if (run.isChecked()) {
            str.append(run.getText().toString() + ",");
        }
        if (sleep.isChecked()) {
            str.append(sleep.getText().toString() + ",");
        }
        if (swim.isChecked()) {
            str.append(swim.getText().toString() + ",");
        }
        if (eat.isChecked()) {
            str.append(eat.getText().toString() + ",");
        }
        if (playball.isChecked()) {
            str.append(playball.getText().toString() + ",");
        }
        if (str.length() == 0) {
            Toast.makeText(this, "請選擇您的愛好", 1).show();
        } else {
            String str1 = str.substring(0, str.length() - 1);
            Toast.makeText(this, "你的愛好是：" + str1, 1).show();
        }

    }