程式第一次啟動從歡迎頁跳到引導頁，下次再啟動直接從歡迎頁跳轉到首頁

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具體做法，就是在本地儲存一個boolean值，如果進入首頁就修改boolean值

new Handler(new Handler.Callback() {

    @Override
    public boolean handleMessage(Message msg) {

        if (SPUtils.getBoolean(getBaseContext(), "welcomeGuide", "isFirst")) {
            goActivity(MainActivity.class);//首頁
        } else {
            goActivity(GuideActivity.class);//引導頁
            SPUtils.putBoolean(getBaseContext(), "welcomeGuide", "isFirst", true);
        }
        finish();
        return false;
    }
}).sendEmptyMessageDelayed(0, 2000);//延遲2秒
           

這個是工具類SPUtils

public static boolean putBoolean(Context context, String fileName, String key, boolean value) {
    SharedPreferences settings = context.getSharedPreferences(fileName, Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = settings.edit();
    editor.putBoolean(key, value);
    return editor.commit();
}


public static boolean getBoolean(Context context, String fileName, String key) {
    return getBoolean(context, fileName, key, false);
}


public static boolean getBoolean(Context context, String fileName, String key, boolean defaultValue) {
    SharedPreferences settings = context.getSharedPreferences(fileName, Context.MODE_PRIVATE);
    return settings.getBoolean(key, defaultValue);
}