随笔分类 - Android
摘要：static成员变量public class Person { String name; static int age; Person() { System.out.println("Person 无参构造"); } void eat() { System.out.println("Person 吃饭"); }}也可以通过类名方式调用...
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摘要：super调用父类构造，必须要写在第一行//Person.javapublic class Person { String name; int age; Person() { System.out.println("Person 无参构造"); } Person(String name, int age) { System.out.prin...
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摘要：public class DbOpenHelper extends SQLiteOpenHelper { private static String name = "test.db"; /* 数据库名称 */ private static int version = 1; /* 数据库版本号 */ public DbOpenHelper(Context context) { ...
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摘要：完成共享参数的读写public class SharedPreference { private Context context; public SharedPreference(Context context) { // TODO Auto-generated constructor stub this.context = context; } ...
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摘要：出现如下错误：DDMS files not found: xxx\hprof-conv.exeThe connection to adb is down, and a severe error has occuredPlease ensure that adb is correctly located at 'D:\tools\android-sdk\platform-tools\adb.exe'...
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摘要：private NotificationManager manager; private Notification.Builder builder; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ...
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摘要：protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button) findViewById(R.id.button); ...
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摘要：private int hourOfDay, minute; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ...
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摘要：private int year; private int monthOfYear; private int dayOfMonth; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setC...
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摘要：public class CustomDilaog { private Context context; private Dialog dialog; public CustomDilaog(Context context) { this.context = context; dialog = new Dialog(context); } ...
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摘要：protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button) findViewById(R.id.button); ...
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摘要：protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button) findViewById(R.id.button); ...
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摘要：添加一个数组 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button) findViewB...
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摘要：private Button button; private final CharSequence items[] = { "北京", "上海", "广州" }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);...
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摘要：private Button button; private final CharSequence[] items = { "北京", "上海", "广州" }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);...
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摘要：private Button button; private final CharSequence[] items = { "北京", "上海", "广州" }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);...
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摘要：@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (B
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摘要：@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button) this.findViewBy...
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摘要：public class MainActivity extends Activity { private Button button; private ActionMode actionMode; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(save...
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摘要：public class MainActivity extends Activity { private ListView listView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setCon...
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