Question

所以我是android的新手，一个问题或更多的烦恼是我的oncreate方法

@Override
protected void onCreate(Bundle state) {
    super.onCreate(state);
    setContentView(R.layout.phone_inputscreen);

    presetTypeLbl = (TextView) findViewById(R.id.presetTypeLbl);

    calcBtn = (Button) findViewById(R.id.calcBtn);
    calcBtn.setOnClickListener(this);

    distanceSpinner = (Spinner) findViewById(R.id.distanceSpinner);
    distanceSpinner.setOnItemSelectedListener(this);

    areaSpinner = (Spinner) findViewById(R.id.areaSpinner);
    areaSpinner.setOnItemSelectedListener(this);

    genderSpinner = (Spinner) findViewById(R.id.genderSpinner);
    genderSpinner.setOnItemSelectedListener(this);

    distanceSpinner.setAdapter(createSimpleAdapter(R.array.distanceType));
    areaSpinner.setAdapter(createSimpleAdapter(R.array.areaType));
    genderSpinner.setAdapter(createSimpleAdapter(R.array.genderType));

    shoeSizeInput = (EditText) findViewById(R.id.shoeSizeInput);
    shoeSizeInput.setText("10");

    distanceInput = (EditText) findViewById(R.id.distanceInput);
    distanceInput.setText("0");

    menu = new SlidingMenu(this);
    menu.setMode(SlidingMenu.RIGHT);
    menu.setTouchModeAbove(SlidingMenu.TOUCHMODE_NONE);
    menu.setFadeEnabled(false);
    menu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);
    menu.setMenu(R.layout.phone_presetscreen);

    Display display = getWindowManager().getDefaultDisplay();
    @SuppressWarnings("deprecation")
    int width = display.getWidth();
    menu.setBehindOffset(width - 255);

    exv = (ExpandableListView) findViewById(R.id.myList);
    ExListViewAdapter exAdapter = new ExListViewAdapter(this, this);
    exv.setAdapter(exAdapter);

}

正如你可以看到很多事情只是在on create方法中被初始化，我发现它非常......凌乱。我想把它放在一个像这样的单独方法中

public void initializeInputScreen() {
    presetTypeLbl = (TextView) findViewById(R.id.presetTypeLbl);

    calcBtn = (Button) findViewById(R.id.calcBtn);
    calcBtn.setOnClickListener(this);

    distanceSpinner = (Spinner) findViewById(R.id.distanceSpinner);
    distanceSpinner.setOnItemSelectedListener(this);

    areaSpinner = (Spinner) findViewById(R.id.areaSpinner);
    areaSpinner.setOnItemSelectedListener(this);

    genderSpinner = (Spinner) findViewById(R.id.genderSpinner);
    genderSpinner.setOnItemSelectedListener(this);

    distanceSpinner.setAdapter(createSimpleAdapter(R.array.distanceType));
    areaSpinner.setAdapter(createSimpleAdapter(R.array.areaType));
    genderSpinner.setAdapter(createSimpleAdapter(R.array.genderType));

    shoeSizeInput = (EditText) findViewById(R.id.shoeSizeInput);
    shoeSizeInput.setText("10");

    distanceInput = (EditText) findViewById(R.id.distanceInput);
    distanceInput.setText("0");

    menu = new SlidingMenu(this);
    menu.setMode(SlidingMenu.RIGHT);
    menu.setTouchModeAbove(SlidingMenu.TOUCHMODE_NONE);
    menu.setFadeEnabled(false);
    menu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);
    menu.setMenu(R.layout.phone_presetscreen);

    Display display = getWindowManager().getDefaultDisplay();
    @SuppressWarnings("deprecation")
    int width = display.getWidth();
    menu.setBehindOffset(width - 255);

    exv = (ExpandableListView) findViewById(R.id.myList);
    ExListViewAdapter exAdapter = new ExListViewAdapter(this, this);
    exv.setAdapter(exAdapter);
}

然后我可以通过

来调用它

protected void onCreate(Bundle state) {
    super.onCreate(state);
    setContentView(R.layout.phone_inputscreen);
    initializeInputScreen();

}

我想知道其他程序员如何同时初始化大量事物，如果有的话，会有更简单的方法。

Answer 1

没关系。尝试在XML中尽可能多地定义事物。例如，设置EditText文字，您不需要在代码中执行此操作。

您甚至可以将设置过程细分为setupMenu()或initializeList()等更多块。

我尝试尽可能地做到这一点 - 好处是可读性。

阅读Clean Code - 有些事情有点矫枉过正，但我也尝试将它们应用到Android开发中。

初始初始化组织

1 个答案: