摘要： public class MainActivity extends Activity{ private RecyclerView rv; public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceStat 阅读全文

摘要： <LinearLayout android:layout_height ="match_parent" android:layout_width="match_parent" android:orientation="vertical" <EditText android:layout_height 阅读全文

摘要： activity_main_01.xml: <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientati 阅读全文

摘要： *普通提示提示对话框: MainActivity.java: protect void onCreate(Bundle saveInstanceState) { super.onCreate(savedInstance); setContentView(R.layout.activity_main_ 阅读全文

摘要： activity_main.xml: <RelativeLayout android:width="match_parent" android:height="60dp" android:background="@android:color/holo_blue_bright"> <Button an 阅读全文

摘要： activity_student_detail.xml: <RelativeLayout android:width="match_parent" android:height="wrap_content" android:background="@android:color/holo_blue_b 阅读全文

摘要： activity_main.xml: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match 阅读全文

摘要： activity_main: <?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="ver 阅读全文