如何在Android测试应用程序中避免代码重复

Question

假设我有一个应用程序，它有类似的按钮，名称为button0、button1等，直到button9。

如何在不重复代码的情况下完成以下操作?

button0 = (Button) activity.findViewById(com.sample.SampleApp.R.id.button0);
button1 = (Button) activity.findViewById(com.sample.SampleApp.R.id.button1);
...
button9 = (Button) activity.findViewById(com.sample.SampleApp.R.id.button9);

我尝试使用反射，但是代码看起来不干净。

for (int i = 0; i <= 9; i++) {
    String btnName = "button" + i;
    /* do reflection stuff to link self.buttonX 
       with a reference to com.sample.SampleApp.R.id.buttonX */
}

Answer 1

下面的代码是未经测试的，但是请尝试一下:

Button[] buttons = new Button[]{button0, button1, button2, button3, button4, button5, button6, button7, button8, button9};
for (int i = 0; i < buttons.length, i++) {
   buttons[i] = (Button) findViewById(getResources().getIdentifier("button" + i, "id", "com.sample.SampleApp"));
}

与ArrayList(同样未经测试-只是为了让你了解我的意思):

ArrayList<Button> buttons = new ArrayList<Button>();
for (int i = 0; i < 10, i++) {
   buttons.add(new Button(this));
   buttons.get(i) = (Button) findViewById(getResources().getIdentifier("button" + i, "id", "com.sample.SampleApp"));
}