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| interview:developer:android:start [2017/08/09 11:54] – created don.lee | interview:developer:android:start [2019/07/28 15:36] (current) – old revision restored (2017/08/16 11:25) don.lee | ||
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| ===== Basic ===== | ===== Basic ===== | ||
| - | Suppose you have a v-shape array, e.g [1, 12, 31, 54, 23, 22, 10] or [1, 2, 3, 9, 20, 40, 7]. How to find the maximum value in a v-shape array? | + | ==== Question 1 ==== |
| + | |||
| + | * Suppose you have a v-shape array, e.g [1, 12, 31, 44, 51, 54, 23, 22, 10]. How to find the maximum value in a v-shape array? | ||
| + | * 假如我们有一个v-shape数组，如[1, | ||
| + | |||
| ===== Android ===== | ===== Android ===== | ||
| - | ==== Question | + | ==== Question |
| * Describe three common use cases for using an Intent. | * Describe three common use cases for using an Intent. | ||
| + | * 请说出 Intent 三个常用案例。 | ||
| - | ==== Question | + | ==== Question |
| * Under what condition could the code sample below crash your application? | * Under what condition could the code sample below crash your application? | ||
| + | * 在什麽情况下以下代码会崩溃？你可以怎样避免？请解释。 | ||
| < | < | ||
| Line 23: | Line 30: | ||
| </ | </ | ||
| - | ==== Question | + | ==== Question |
| * What is the relationship between the life cycle of an AsyncTask and an Activity? What problems can this result in? How can these problems be avoided? | * What is the relationship between the life cycle of an AsyncTask and an Activity? What problems can this result in? How can these problems be avoided? | ||
| + | * AsyncTask 和 Activity 的生命周期有什麽関系？这个関系有可能导致什麽问题？你可以如何避免？ | ||
| - | ==== Question | + | ==== Question |
| * What is difference between Serializable and Parcelable ? Which is best approach in Android ? | * What is difference between Serializable and Parcelable ? Which is best approach in Android ? | ||
| + | * Serializable 和 Parcelable 有什麽分别？那一个在安卓使用比较好？ | ||
| + | |||
| + | ==== Question 6 ==== | ||
| + | |||
| + | |||
| + | |||
| + | * Write down the log results at 4 different cases | ||
| + | * Start MainActivity | ||
| + | * Invoke onClick() at MainActivity | ||
| + | * User press back button from ActivityTwo | ||
| + | * Start ActivityThree | ||
| + | |||
| + | * 我们有以下三段代码，请分别写下以下四种执行后log的结果 | ||
| + | * 开始MainActivity | ||
| + | * 触发onClick() at MainActivity | ||
| + | * 用户在ActivityTwo按back button | ||
| + | * 开始ActivityThree | ||
| - | ==== Question 5 ==== | ||
| < | < | ||
| public class MainActivity extends Activity implements OnClickListener { | public class MainActivity extends Activity implements OnClickListener { | ||
| - | |||
| final String TAG = " | final String TAG = " | ||
| - | |||
| Button btnActTwo; | Button btnActTwo; | ||
| Line 44: | Line 66: | ||
| super.onCreate(savedInstanceState); | super.onCreate(savedInstanceState); | ||
| setContentView(R.layout.main); | setContentView(R.layout.main); | ||
| - | |||
| btnActTwo = (Button) findViewById(R.id.btnActTwo); | btnActTwo = (Button) findViewById(R.id.btnActTwo); | ||
| btnActTwo.setOnClickListener(this); | btnActTwo.setOnClickListener(this); | ||
| - | |||
| Log.d(TAG, | Log.d(TAG, | ||
| } | } | ||
| Line 93: | Line 113: | ||
| } | } | ||
| } | } | ||
| + | </ | ||
| + | < | ||
| public class ActivityTwo extends Activity { | public class ActivityTwo extends Activity { | ||
| - | |||
| final String TAG = " | final String TAG = " | ||
| Line 141: | Line 162: | ||
| } | } | ||
| } | } | ||
| + | </ | ||
| + | < | ||
| public class ActivityThree extends Activity { | public class ActivityThree extends Activity { | ||
| - | |||
| final String TAG = " | final String TAG = " | ||
| Line 191: | Line 213: | ||
| } | } | ||
| </ | </ | ||
| - | |||
| - | * Write down the log results at 4 different cases | ||
| - | * Start MainActivity | ||
| - | * Invoke onClick() at MainActivity | ||
| - | * User press back button from ActivityTwo | ||
| - | * Start ActivityThree | ||
| - | |||