CheckBox标签和属性

CheckBox的作用：可以提供复选

下面是我点击按钮查看所选内容的代码：定义按钮监听器，并在onClick方法中调用shoeAlt方法（此方法会在第二块代码定义）

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

接下来是定义showAlt方法（首先初始化控件，然后用isCheck方法查看，这些控件哪些被选中，如果被选中就用getText和toString方法得到控件的text）

到这里不得不说Toast

Toast给当前视图显示一个浮动的显示块，它永远不会获得焦点，我会在下一篇的博客中详细解释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, "请选择您的爱好", 1).show();
        } else {
            String str1 = str.substring(0, str.length() - 1);
            Toast.makeText(this, "你的爱好是：" + str1, 1).show();
        }

    }