Android Studioの便利機能等

Toru Hosokawa
twitter:@anton0825
facebook:toru.hosokawa1
github:hosokawa0825
blog:http://d.hatena.ne.jp/anton0825/

2015.2.18

呼ばれたメソッドをログに出す

手書きは面倒。。


                    @Override
                    protected void onCreate(final Bundle savedInstanceState) {
                        super.onCreate(savedInstanceState);
                        Log.d("HomeActivity", "onCreate");
                    }

メソッド化


                    public class MyUtils {
                        public static void log(Object obj) {
                            Log.d(obj.getClass().getSimpleName(), "(" + obj.hashCode() + "):" + Thread.currentThread().getStackTrace()[3].getMethodName());
                        }
                    }

呼び出し側


                    @Override
                    protected void onCreate(final Bundle savedInstanceState) {
                        super.onCreate(savedInstanceState);
                        MyUtils.log(this);
                    }

吐かれたログ


                    D/Tab1Fragment﹕ (549828625):onViewCreated

使って良かったライブラリ

Icepick

InstanceStateのsaveとrestoreを簡単にできる


                    class ExampleActivity extends Activity {
                        @Icicle String username; // save/restoreされる

                        @Override public void onCreate(Bundle savedInstanceState) {
                            super.onCreate(savedInstanceState);
                            Icepick.restoreInstanceState(this, savedInstanceState);
                        }

                        @Override public void onSaveInstanceState(Bundle outState) {
                            super.onSaveInstanceState(outState);
                            Icepick.saveInstanceState(this, outState);
                        }
                    }

AssertJ

Assertionライブラリ。fest-androidの後継プロジェクト


                    assertThat(frodo.getName()).isEqualTo("Frodo");

JSONassert

JSONに特化したAssertionライブラリ


                    JSONObject data = getRESTData("/friends/367.json");
                    String expected = "{friends:[{id:123,name:\"Corby Page\"},{id:456,name:\"Carter Page\"}]}";
                    JSONAssert.assertEquals(expected, data, false);