スマホアプリの自習帳

id の代わりに tag を使う

＜１＞

LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int idLayoutActivityMain = getApplication().getResources().getIdentifier("activity_main", "layout", getApplication().getPackageName());
rootView = inflater.inflate(idLayoutActivityMain, null);
setContentView(rootView);

ImageView imageView = rootView.findViewWithTag("imageView" );

＜２＞Layout XMLにはidの代わりにtagを追加
【activity_main.xml】

<ImageView
    android:id="@+id/imageView"
    android:tag="imageView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scaleType="centerInside"
    tools:srcCompat="@tools:sample/backgrounds/scenic" />

This entry was posted on 2019年11月26日 at 11:34 午後 and is filed under 未分類. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.