Activity, Fragment, CustomView の使い分け - マッチョなActivityにさよならする方法 -
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Activity, Fragment, CustomView の使い分け - マッチョなActivityにさよならする方法 -
- 8. あんざいゆき, @yanzm, uPhyca Inc.
- 30. Activity Fragment CustomView テーマ ⚪ △ Windowを 作成 ⚪ 他の画面から 呼び出せる ⚪ ライフサイクル のハンドリング ⚪ ⚪ △
- 31. Activity Fragment CustomView 1画面に複数 ⚪ ⚪ Orientation 指定 ⚪ Fragmentを 持てる ⚪ 画面回転の前後 でインスタンス を保持 ⚪
- 32. Activity Fragment CustomView 描画 ⚪ KeyEvent ⚪ ⚪ バックキー ⚪ ⚪ BackStack ⚪ ⚪
- 33. Activity Fragment CustomView Options Menu ⚪ ⚪ Loader ⚪ ⚪ 状態の リストア ⚪ ⚪ △ テスト しやすさ ⚪
- 46. • ImageView • EditText • Spinner • RadioButton • pick list
- 54. private static final String KEY_DESSERT_LIST = "dessert_list"; @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); ArrayList<String> dessertList = new ArrayList<>(); … outState.putStringArrayList(KEY_DESSERT_LIST, dessertList); } @Override protected void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); ArrayList<String> dessertList = savedInstanceState .getStringArrayList(KEY_DESSERT_LIST); … }
- 57. static class SavedState extends BaseSavedState { ArrayList<String> favoriteDessert; SavedState(Parcelable superState) { super(superState); } private SavedState(Parcel in) { super(in); favoriteDessert = in.readArrayList(String.class.getClassL } @Override public void writeToParcel(@NonNull Parcel out, int flags) { super.writeToParcel(out, flags); out.writeStringList(favoriteDessert); } … }
- 58. @Override public Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); SavedState ss = new SavedState(superState); ss.favoriteDessert = getFavoriteDesserts(); return ss; } @Override public void onRestoreInstanceState(Parcelable state) { SavedState ss = (SavedState) state; super.onRestoreInstanceState(ss.getSuperState()); setFavoriteDesserts(ss.favoriteDessert); requestLayout(); }
- 60. static class SavedState extends BaseSavedState { String imageUrl; String uriString; SavedState(Parcelable superState) { super(superState); } private SavedState(Parcel in) { super(in); imageUrl = in.readString(); uriString = in.readString(); } @Override public void writeToParcel(@NonNull Parcel out, int flags) { super.writeToParcel(out, flags); out.writeString(imageUrl); out.writeString(uriString); } … }
- 61. @Override public Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); SavedState ss = new SavedState(superState); ss.imageUrl = imageUrl; if (localImageUri != null) { ss.uriString = localImageUri.toString(); } return ss; } @Override public void onRestoreInstanceState(Parcelable state) { SavedState ss = (SavedState) state; super.onRestoreInstanceState(ss.getSuperState()); if (!TextUtils.isEmpty(ss.uriString)) { setImageFromUriString(ss.uriString); } else if (!TextUtils.isEmpty(ss.imageUrl)) { setImageUrl(ss.imageUrl); } requestLayout(); }
- 63. final int id = eventGroup.getCheckedRadioButtonId(); switch (id) { case R.id.attend: profileData.eventStatus = ProfileData.EVENT_STATUS_ATTEN break; case R.id.not_attend: profileData.eventStatus = ProfileData.EVENT_STATUS_NOT_A break; case R.id.unknown: profileData.eventStatus = ProfileData.EVENT_STATUS_UNKNO break; default: return; }
- 65. @Retention(RetentionPolicy.SOURCE) @IntDef({EVENT_STATUS_UNDEFINED, EVENT_STATUS_ATTEND, EVENT_STATUS_NOT_ATTEND, EVENT_STATUS_UNKNOWN}) public @interface EventStatus { } @EventStatus public int getEventStatus() { final int id = getCheckedRadioButtonId(); switch (id) { case R.id.attend: return EVENT_STATUS_ATTEND; case R.id.not_attend: return EVENT_STATUS_NOT_ATTEND; case R.id.unknown: return EVENT_STATUS_UNKNOWN; default: return EVENT_STATUS_UNDEFINED; } }
- 68. private boolean validate() { // バリデーション失敗: エラーメッセージ表示 final String name = nameEditText.getText().toString(); if (TextUtils.isEmpty(name)) { Toast.makeText(MainActivity.this, "名前が入力されていません", Toast.LENGTH_SHORT).show( return false; } if (eventStatusPicker.getEventStatus() == EventStatusPicker.EVENT_STATUS_UNDEFINED) { Toast.makeText(MainActivity.this, "DroidKaigiが選択されていません", Toast.LENGTH_SHORT return false; } return true; }