//0 android 创建按钮Button button = new Button(this);//1 android 创建输入框EditText editText = new EditText(this);//2 android 创建文本TextView textView = new TextView(this);//3 android 设置文本显示内容TextView textView = new TextView(this);textView.setText("hello world!");//4 android 设置文本背景色TextView textView = new TextView(this);textView.setBackgroundColor(Color.YELLOW);//5 android 设置文本颜色TextView textView = new TextView(this);textView.setTextColor(Color.YELLOW);//6 android 设置文本文字大小TextView textView = new TextView(this);textView.setTextSize(18);//7 android 设置输入框宽度EditText editText = new EditText(this);editText.setWidth(200);//8 android 设置输入框为密码框EditText editText = new EditText(this);editText.setTransformationMethod(PasswordTransformationMethod.getInstance());//9 android 设置输入框为密码框（xml配置）android:password="true"//10 android 提示对话框的使用AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("你好");builder.setPositiveButton("OK",this);builder.show()//需实现android.content.DialogInterface.OnClickListener接口//11 android ListView的使用ListView listView = new ListView(this);ArrayList<HashMap<String, Object>> list = new ArrayList<HashMap<String, Object>>();SimpleAdapter adapter = new SimpleAdapter(this,list,R.layout.list,new String[]{"标题"},new int[]{R.id.TextView01});listView.setAdapter(adapter);listView.setOnItemClickListener(this);//然后实现OnItemClickListener接口public void onItemClick(AdapterView<?> parent, View view, int position, long id) {}//12 android 更新ListViewListView listView = new ListView(this);ArrayList<HashMap<String, Object>> list = new ArrayList<HashMap<String, Object>>();SimpleAdapter adapter = new SimpleAdapter(this,list,R.layout.list,new String[]{"标题"},new int[]{R.id.TextView01});listView.setAdapter(adapter);adapter.notifyDataSetChanged();//通知更新ListView//13 android 创建LinearLayoutLinearLayout layoutParant = new LinearLayout(this);//14 android 时间设置对话框的使用DatePickerDialog dlg = new DatePickerDialog(this,this,year,month,day);dlg.show();/*year month day 均为int型，第二个参数为this时，该类需要implements OnDateSetListener并重写public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {}*///15 android 创建FrameLayoutFrameLayout layout = new FrameLayout(this);//16 android 触发键盘事件layout.setOnKeyListener(this);//需要implements OnKeyListener并重写以下方法public boolean onKey(View v, int keyCode, KeyEvent event) {return false;//返回是否销毁该事件以接收新的事件，比如返回true按下时可以不断执行这个方法，返回false则执行一次。}//17 android 触发鼠标事件layout.OnTouchListener(this);//需要implements OnTouchListener并重写以下方法public boolean onTouch(View v, MotionEvent event) {return false;//返回是否销毁该事件以接收新的事件，比如返回true按下时可以不断执行这个方法，返回false则执行一次。}//18 android 获得屏幕宽度和高度int width = this.getWindow().getWindowManager().getDefaultDisplay().getWidth();int height =this.getWindow().getWindowManager().getDefaultDisplay().getHeight();//19 android 布局添加控件LinearLayout layout = new LinearLayout(this);Button button = new Button(this);layout.addView(button);//20 android intent实现activit之间跳转Intent intent = new Intent();intent.setClass(this, DestActivity.class);startActivity(intent);//21 android intent设置actionIntent intent = new Intent();intent.setAction(intent.ACTION_DIAL);//22 android intent设置dataIntent intent = new Intent();intent.setData(Uri.parse("tel:00000000"));//23 android intent传数据Intent intent = new Intent();intent.putExtra("data", value);//value可以是很多种类型，在接收activity中取出后强制转换或调用相应类型的get函数。//24 android intent取数据String value = (String)getIntent().getExtras().get("data");//orString value = getIntent().getExtras().getString("data");//25 android 利用paint和canvas画图setContentView(new MyView(this));class MyView extends View{public MyView(Context context){super(context);}public void onDraw(Canvas canvas){Paint paint = new Paint();//创建画笔paint.setColor(Color.BLUE);//设置画笔颜色 canvas.drawRect(0, 0, 100, 100, paint);//画个正方形，坐标0，0，100，100。} }//26 android 新建对话框Dialog dialog = new Dialog(this);dialog.setTitle("test");//设置标题dialog.addContentView(button,new LayoutParams(-1,-1));//添加控件,-1是设置高度和宽度充满布局，-2是按照需要设置宽度高度。dialog.show();//27 android 取消对话框dialog.cancel();//28对View类刷新显示view.invalidate();//通过这个调用view的onDraw()函数//29 android 使用SurfaceView画图setContentView(new MySurfaceView(this));class MySurfaceView extends SurfaceView implements SurfaceHolder.Callback{SurfaceHolder holder;public MySurfaceView(Context context) {super(context);holder = getHolder();holder.addCallback(this);}class MyThread extends Thread{public void run(){ Canvas canvas = holder.lockCanvas(); Paint paint = new Paint();paint.setColor(Color.YELLOW); canvas.drawRect(100, 100, 200, 200, paint);holder.unlockCanvasAndPost(canvas);}}public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {}public void surfaceCreated(SurfaceHolder holder) {new MyThread().start(); }public void surfaceDestroyed(SurfaceHolder holder) {}}//30 android 获得控件findViewByIdTextView textView = (TextView) findViewById(R.id.TextView01);//31 android 十六进制设置画笔颜色Paint paint = new Paint();paint.setColor(0xffffffff);//第一个ff是透明度的设置。//32 android 获得String.xml中配置的字符串//在activity中直接调用getText(R.string.app_name);//33 android 去掉应用程序头部requestWindowFeature(Window.FEATURE_NO_TITLE);//34 android 使用SharedPreferences写入数据代码getSharedPreferences("data", 0).edit().putString("aa","bb").commit();//35 android 使用SharedPreferences读取数据代码String data = getSharedPreferences("data", 0).getString("item","");//后面的""是默认值，没有取到则赋值为""，如果不想有默认，可以设置null。//36 android 继承SQLiteOpenHelperclass MyHelper extends SQLiteOpenHelper{public MyHelper(Context context, String name, CursorFactory factory,int version) {super(context, name, factory, version);}public void onCreate(SQLiteDatabase db) {db.execSQL("CREATE TABLE IF NOT EXISTS testtable (" +"cardno integer primary key," +"username varchar," + "money integer"+")"); }public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){db.execSQL("DROP TABLE IF EXISTS testtable");onCreate(db);} }//37 android 利用SQLiteOpenHelper打开数据库MyHelper dbHelper = new MyHelper(this, "testtable.db", null, 1);SQLiteDatabase db = dbHelper.getReadableDatabase();//打开只读//或者SQLiteDatabase db = dbHelper.getWritableDatabase();//打开可写//38 android 查询数据表并显示结果Cursor cursor = db.query("testtable", null, null, null, null, null, null);//db的获得请参见“利用SQLiteOpenHelper打开数据库”while(!cursor.isAfterLast()){Log.i("test",cursor.getString(0));cursor.moveToNext(); }//39 android Logcat输出打印测试信息Log.i("TAG","TEST");//40 android 数据表插入数据ContentValues values = new ContentValues();values.put("username","admin");values.put("money","10000");db.insert("testtable", null, values);//41 android 使得应用全屏getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN,WindowManager.LayoutParams. FLAG_FULLSCREEN); //42 android 设置LinearLayout方向为竖layoutParant.setOrientation(LinearLayout.VERTICAL);//43 android 设置LinearLayout方向为横layoutParant.setOrientation(LinearLayout.HORIZONTAL);//44 android 数据库更新数据ContentValues values = new ContentValues();values.put("username","admin");values.put("money","10000");db.update("testtable",values,"userno=1",null);//45 android 数据库删除数据db.delete("testtable","userno=1",null);//46 android 判断sd卡是否存在if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)){ Log.i("test","SDCARD exists"); }else {Log.i("test","SDCARD doesn't exist"); }//47 android 创建ImageViewImageView view = new ImageView(this); view.setImageResource(R.drawable.icon);//48 android 提示信息Toast toast = Toast.makeText(this, "hello", Toast.LENGTH_LONG); toast.show();//49 android 创建单选框以及单选组RadioButton radioButton = new RadioButton(this);RadioButton radioButton2 = new RadioButton(this);radioButton.setText("yes");radioButton2.setText("no");RadioGroup radioGroup = new RadioGroup(this);radioGroup.addView(radioButton);radioGroup.addView(radioButton2);//50 android 新建播放器MediaPlayer MediaPlayer = new MediaPlayer();//51 android 媒体播放器使用//创建MediaPlayerMediaPlayer player = new MediaPlayer();//重置MediaPlayerplayer.reset();try {//设置要播放的文件的路径 player.setDataSource("/sdcard/1.mp3");//准备播放 player.prepare();}catch (Exception e) {}//开始播放player.start();//设置播放完毕事件player.setOnCompletionListener(new OnCompletionListener(){public void onCompletion(MediaPlayer player) {//播完一首循环try {//再次准备播放 player.prepare();} catch (Exception e) {} player.start();}});//52 android 媒体播放器暂停player.pause();//53 android 清空cookiesCookieManager.getInstance().removeAllCookie();//54 android 文本设置粗体TextView textView = new TextView(this);TextPaint textPaint = textView.getPaint();textPaint.setFakeBoldText(true);//55 android 网络权限配置<uses-permission android:name="android.permission.INTERNET" />//56 android GL设定背景色gl.glClearColor(0.5f, 0.2f, 0.2f, 1.0f);gl.glClear(GL10.GL_COLOR_BUFFER_BIT);//57 android 创建GL画布public class My3DView extends GLSurfaceView {private GLSurfaceView.Renderer renderer;public My3DView(Context context) {super(context);renderer = new My3DRender();setRenderer(renderer);}}//58 android 创建复选框CheckBox checkBox = new CheckBox(this);//59 android 复选框监听选择/取消事件checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {Log.i("QSR","TEST");} });//60 android 创建菜单//重写下面这个函数public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); menu.add(0, 1, 1, "test1"); menu.add(0, 2, 2, "test2"); menu.add(0, 3, 3, "test3"); menu.add(0, 4, 4, "test4"); return true; //61 android 处理菜单选择事件public boolean onOptionsItemSelected(MenuItem item){int id = item.getItemId();switch (id) {case 1:Log.i("QSR","1");break;case 2:Log.i("QSR","2");break;case 3:Log.i("QSR","3");break;case 4:Log.i("QSR","4");break;default:break; }return super.onOptionsItemSelected(item);} } //62 android 允许程序访问GPS(XML配置)<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>//63 android 允许程序访问GSM网络信息(XML配置)<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>//64 android 允许程序访问WIFI网络信息(XML配置)<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>//65 android 允许程序更新电池状态(XML配置)<uses-permission android:name="android.permission.BATTERY_STATS"/>//66 android 允许程序写短信(XML配置)<uses-permission android:name="android.permission.WRITE_SMS"/>//67 android 允许程序设置壁纸(XML配置)<uses-permission android:name="android.permission.SET_WALLPAPER"/>//68 android 允许程序使用蓝牙(XML配置)<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>//69 android 允许程序打电话(XML配置)<uses-permission android:name="android.permission.CALL_PHONE"/>//70 android 允许程序使用照相设备(XML配置)<uses-permission android:name="android.permission.CAMERA"/>//71 android 允许程序改变网络状态(XML配置)<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>//72 android 允许程序改变WIFI状态(XML配置)<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>//73 android 允许程序删除缓存文件(XML配置)<uses-permission android:name="android.permission.DELETE_CACHE_FILES"/>//74 android 允许程序删除包(XML配置)<uses-permission android:name="android.permission.DELETE_PACKAGES"/>//75 android 允许程序禁用键盘锁(XML配置)<uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>//76 android 允许程序获取任务信息(XML配置)<uses-permission android:name="android.permission.GET_TASKS"/>//77 android 允许程序截获鼠标或键盘等事件(XML配置)<uses-permission android:name="android.permission.INJECT_EVENTS"/>//78 android 允许程序使用socket(XML配置)<uses-permission android:name="android.permission.INTERNET"/>//79 android 允许程序读取日历(XML配置)<uses-permission android:name="android.permission.READ_CALENDAR"/>//80 android 允许程序读取系统日志(XML配置)<uses-permission android:name="android.permission.READ_LOGS"/>//81 android 允许程序读取所有者数据(XML配置)<uses-permission android:name="android.permission.READ_OWNER_DATA"/>//82 android 允许程序读取短信(XML配置)<uses-permission android:name="android.permission.READ_SMS"/>//83 android 允许程序重启设备(XML配置)<uses-permission android:name="android.permission.REBOOT"/>//84 android 允许程序录制音频(XML配置)<uses-permission android:name="android.permission.RECORD_AUDIO"/>//85 android 允许程序发送短信(XML配置)<uses-permission android:name="android.permission.SEND_SMS"/>//86 android 允许程序将自己置为最前(XML配置)<uses-permission android:name="android.permission.SET_PROCESS_FOREGROUND"/>//87 android 创建图像图片BitmapResources res = getResources();Bitmap bitmap = BitmapFactory.decodeResource(res, R.drawable.hh);//88 android 取得远程图片HttpURLConnection conn = (HttpURLConnection) imageUrl.openConnection();conn.connect();InputStream is = conn.getInputStream();bitmap = BitmapFactory.decodeStream(is);is.close();//89 android 允许程序发送短信(XML配置)<uses-permission android:name="android.permission.SEND_SMS"/>//90 android 启动和结束服务startService(new Intent("qsr.test.MyService"));stopService(new Intent("qsr.test.MyService"));//91 android 创建和配置Servicepublic class MyService extends Service {public IBinder onBind(Intent arg0) {return null;}public void onStart(Intent intent,int startId){super.onStart(intent, startId);//to do something when start}public void onDestroy(){super.onDestroy();//to do something when stop} }//xml配置<service android:name=".MyService"><intent-filter><action android:name="android.intent.action.TEST_SERVICE" /><category a76ndroid:name="android.intent.category.default" /></intent-filter></service>//92 android 获得系统感应设备SensorManager sensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE); //93 android 设置控件布局参数textView01.setLayoutParams(new AbsoluteLayout.LayoutParams(100,60,0,0);//高100，宽60，x=0，y=0；);//94 android 创建Drawable对象Resources res = getResources();Drawable drawable = res.getDrawable(R.drawable.hh);//95 android 访问网页Uri uri = Uri.parse("http://www.google.com");Intent intent = new Intent(Intent.ACTION_VIEW,uri);startActivity(intent);//96 android 打电话Uri uri = Uri.parse("tel:00000000");Intent intent = new Intent(Intent.ACTION_DIAL, uri); startActivity(intent); //97 android 播放歌曲Intent intent = new Intent(Intent.ACTION_VIEW);Uri uri = Uri.parse("file:///sdcard/test.mp3");intent.setDataAndType(uri, "audio/mp3");startActivity(intent);//98 android 发送邮件Intent intent=new Intent(Intent.ACTION_SEND); intent.putExtra(Intent.EXTRA_TEXT, "The email text"); intent.setType("text/plain"); startActivity(Intent.createChooser(intent, "Choose Email Client"));//99 android 发短信Uri uri = Uri.parse("smsto:123456789"); Intent intent = new Intent(Intent.ACTION_SENDTO, uri); intent.putExtra("sms_body", "The SMS text"); startActivity(intent);//100 android 安装程序Uri installUri = Uri.fromParts("package", "xxx", null);Intent intent = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri); startActivity(intent);//101 android 卸载程序Uri uninstallUri = Uri.fromParts("package", "xxx", null);Intent intent = new Intent(Intent.ACTION_DELETE, uninstallUri); startActivity(intent);//102 android 从xml配置获得控件对象//TestActivity.javatextView = (TextView) findViewById(R.id.TextView01);//main.xml< TextView android:text = "TextView01"android:id = "@+id/TextView01"android:layout_width = "wrap_content"android:layout_height = "wrap_content"android:layout_x = "60px"android:layout_y = "60px"/>//103 android 获得触摸屏压力public boolean onTouch(View v, MotionEvent event) {float pressure = event.getPressure();return false;}//104 android 给文本加上滚动条TextView textView = new TextView(this);textView.setText(string);ScrollView scrollView = new ScrollView(this);scrollView.addView(textView);setContentView(scrollView);//105 android 获得正在运行的所有服务public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);StringBuffer serviceInfo = new StringBuffer();ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);List<RunningServiceInfo> services = activityManager.getRunningServices(256);Iterator<RunningServiceInfo> iterator = services.iterator();while (iterator.hasNext()) {RunningServiceInfo si = (RunningServiceInfo)iterator.next();serviceInfo.append("pid: ").append(si.pid);serviceInfo.append("process: ").append(si.process);}TextView textView = new TextView(this);textView.setText(serviceInfo.toString());ScrollView scrollView = new ScrollView(this);scrollView.addView(textView);setContentView(scrollView);}//106 android 使用ContentResolver获得联系人姓名和号码ContentResolver cr = getContentResolver();Cursor cur = cr.query(People.CONTENT_URI, null, null, null, null);cur.moveToFirst();do {int nameColumn = cur.getColumnIndex(People.NAME);int phoneColumn = cur.getColumnIndex(People.NUMBER);String name = cur.getString(nameColumn);String phoneNumber = cur.getString(phoneColumn);Toast.makeText(this,name,Toast.LENGTH_LONG).show();Toast.makeText(this,phoneNumber,Toast.LENGTH_LONG).show();} while (cur.moveToNext());//107 android 创建WebViewWebView webView = new WebView(this);webView.loadData("<html>"+"<head>test</head>"+"<body>test</body>"+"</html>", "text/html", "utf-8");//108 android 设置地图是否显示卫星和街道mapView.setSatellite(false); mapView.setStreetView(true);//109 android 单选框清除radioGroup.clearCheck();//110 android 给文本增加链接Linkify.addLinks(mTextView01,Linkify.WEB_URLS);Linkify.addLinks(mTextView02,Linkify.EMAIL_ADDRESSES);Linkify.addLinks(mTextView03,Linkify.PHONE_NUMBERS);//111 android 设置手机震动Vibrator vibrator = (Vibrator)getApplication().getSystemService(Service.VIBRATOR_SERVICE);vibrator.vibrate( new long[]{1000,1000,1000,1000},-1);//震动一秒，停一秒，再震一秒//112 android 创建下拉框Spinner spinner = new Spinner(this);//113 android 给spinner添加事件spinner.setOnItemSelectedListener(new Spinner.OnItemSelectedListener() { public void onItemSelected(AdapterView<?> parent,View view,int position,long id) { } public void onNothingSelected(AdapterView<?> parent) { } });//114 android 图片的显示方式ImageView imageView = new ImageView(this);imageView.setScaleType(ImageView.ScaleType.FIT_XY);//适应大小imageView.setScaleType(ImageView.ScaleType.CENTER);//原始大小，居中显示//115 android 取得缓存目录File cacheDir = this.getCacheDir();//116 android 取得当前文件目录File fileDir = this.getFilesDir();//117 android 判断当前wifi是否可用WifiManager aWiFiManager = (WifiManager)this.getSystemService(Context.WIFI_SERVICE);boolean isEnabled = aWiFiManager .isWifiEnabled);//118 android 判断当前wifi是否已经打开WifiManager aWiFiManager = (WifiManager)this.getSystemService(Context.WIFI_SERVICE);if(aWiFiManager.getWifiState()==WifiManager.WIFI_STATE_ENABLED)Log.i("TEST","it is open");//119 android 判断SIM卡状态TelephonyManager telephonyManager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);if(telephonyManager.getSimState()==telephonyManager.SIM_STATE_READY) { Log.i("TEST","正常"); } else if(telephonyManager.getSimState()==telephonyManager.SIM_STATE_ABSENT) { Log.i("TEST","无SIM卡"); }//120 android 取得SIM卡商名称TelephonyManager telephonyManager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);String name = telephonyManager.getSimOperatorName();//121 android 为activity增加键盘事件public boolean onKeyDown(int keyCode, KeyEvent event){ switch(keyCode){case KeyEvent.KEYCODE_DPAD_UP: Log.i("上",String.valueOf(keyCode)); break;case KeyEvent.KEYCODE_DPAD_DOWN: Log.i("下",String.valueOf(keyCode)); break;case KeyEvent.KEYCODE_DPAD_LEFT: Log.i("左",String.valueOf(keyCode)); break;case KeyEvent.KEYCODE_DPAD_RIGHT: Log.i("右",String.valueOf(keyCode)); break;case KeyEvent.KEYCODE_DPAD_CENTER: Log.i("中",String.valueOf(keyCode)); break;} return super.onKeyDown(keyCode, event);}//122 android 显示正在运行的程序ActivityManager mActivityManager = (ActivityManager)getSystemService(ACTIVITY_SERVICE);List<ActivityManager.RunningTaskInfo> mRunningTasks = mActivityManager.getRunningTasks(100);for (ActivityManager.RunningTaskInfo task : mRunningTasks){String taskInfo = task.baseActivity.getClassName()+"(ID=" + amTask.id +")");}//123 android 切换横竖屏if(getRequestedOrientation()==ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE){setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);}else if(getRequestedOrientation()==ActivityInfo.SCREEN_ORIENTATION_PORTRAIT){setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);}//PORTRAIT竖；LANDSCAPE横//124 android 判断网络类型是否为GPRSTelephonyManager telephonyManager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);if(telephonyManager.getNetworkType()==telephonyManager.NETWORK_TYPE_GPRS)//125 android 发送http请求给网页String uriAPI = "http://127.0.0.1:8080/test/index.jsp";HttpPost httpRequest = new HttpPost(uriAPI); List <NameValuePair> params = new ArrayList <NameValuePair>(); params.add(new BasicNameValuePair("username", "test"));try { httpRequest.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8)); HttpResponse httpResponse = new DefaultHttpClient().execute(httpRequest); if(httpResponse.getStatusLine().getStatusCode() == 200) { String strResult = EntityUtils.toString(httpResponse.getEntity()); } } catch (IOException e) { e.printStackTrace(); } //126 android 创建带图片的按钮ImageButton imageButton = new ImageButton(this);imageButton.setImageResource(R.drawable.test);//127 android 创建WebViewLinearLayout layout = new LinearLayout(this);Button button = new Button(this);layout.addView(button);layout.removeView(button);//128 android layout设置背景图片LinearLayout layout = new LinearLayout(this);layout.setBackgroundResource(R.drawable.hh);//图片放在drawable下了，名字是hh.jpg//129 android 设置铃声Intent intent = new Intent( RingtoneManager.ACTION_RINGTONE_PICKER);//130 android 设置网络 请求方式/缓存/格式/编码HttpURLConnection con=(HttpURLConnection)url.openConnection();con.setUseCaches(false);//不使用缓存con.setRequestMethod("POST");//请求方式是postcon.setRequestProperty("Content-Type", "text/xml");//格式con.setRequestProperty("Charset", "UTF-8");//编码//131 android 判断是否为有效的网络urlURLUtil.isNetworkUrl(strPath)//132 android 创建垂直滚动条ScrollView scrollView = new ScrollView(this);//133 android 创建水平滚动条HorizontalScrollView horizontalScrollView = new HorizontalScrollView(this);//134 android 创建自动完成文本框AutoCompleteTextView autoCompleteTextView = new AutoCompleteTextView(this);//135 android 创建地图控件MapViewMapView mapView = new MapView(this);//136 android 设置地图放大系数mapController = mapView.getController();mapController.setZoom(12); //137 android layout增加和删除控件LinearLayout layout = new LinearLayout(this);Button button = new Button(this);layout.addView(button);layout.removeView(button);//138 android 刷新地图显示函数//继承MapActivity并重写以下方法public void refreshMapView() {}//139 android 创建LocationManagerLocationManager locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);//140 android 设置webView的javascript有效WebView webView = new WebView(this);webView.setJavaScriptEnabled(true);//141 android 设置webView的保存密码有效WebView webView = new WebView(this);webSettings.setSavePassword(true);//142 android 获得PowerManagerPowerManager powerManager = (PowerManager)getSystemService(Context.POWER_SERVICE);//143 android 相机的预览parameters.setPreviewSize(640, 480);//参数的其他设定参考“设置相机图片大小和像素等”camera.setPreviewDisplay(surfaceHolder);//这里是个SurfaceHolder对象camera.startPreview();camera.stopPreview();//144 android Google Map的移动GeoPoint point = new GeoPoint(xxx, yyy);MapController controller = mapView.getController(); controller.animateTo(point);//145 android 设置画笔粗细Paint paint= new Paint();paint.setStrokeWidth(1);//146 android 打开相机Camera.open();//147 android 设置相机图片大小和像素等Camera.Parameters parameters = camera.getParameters();//设置相片格式为JPEGparameters.setPictureFormat(PixelFormat.JPEG);//设置图片分辨率大小parameters.setPictureSize(640, 480);camera.setParameters(parameters);//148 android 将屏幕亮着PowerManager.WakeLock wakeLock = mPowerManager.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "BackLight");//149 android 暂停和恢复activityprotected void onPause(){ super.onPause(); }protected void onResume() { super.onResume(); }//150 android 保存和恢复canvas设置canvas.save();//保存设置//之间做一些变换，转移，拉伸等操作canvas.restore();//恢复设置//151 android 地图搜索Intent search = new Intent(Intent.ACTION_WEB_SEARCH);search.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);search.putExtra(SearchManager.QUERY, "new york");startActivity(search);//152 android 设置播放器音量mediaPlayer.setVolume(10, 10);//153 android 播放器跳转到具体位置mediaPlayer.seekTo(0);//0的单位是毫秒//154 android 获得手机号码和手机串号(IMEI)TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE); String imei = telephonyManager.getDeviceId(); String tel = telephonyManager.getLine1Number(); //155 android 闹钟设置代码//接受闹铃并显示提示class AlarmReceiver extends BroadcastReceiver { public void onReceive(Context context, Intent intent) { Toast.makeText(context, "时间到", Toast.LENGTH_LONG).show(); } }// 实例化自定义的 BroadcastReceiverAlarmReceiver receiver = new AlarmReceiver();IntentFilter filter = new IntentFilter();filter.addAction("android.intent.action.BOOT_COMPLETED"); // 以编程方式注册 BroadcastReceiver 。xml配置方式见下// 一般在 OnStart 时注册，在 OnStop 时取消注册registerReceiver(receiver, filter);Intent intent = new Intent(this, AlarmReceiver.class); PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); //一次闹铃alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() +1000, pendingIntent); //周期闹铃alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 1000, 10000, pendingIntent); //xml配置<receiver android:name=".AlarmReceiver"> <intent-filter> <action android:name="android.intent.action.BOOT_COMPLETED" /> </intent-filter></receiver><uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />//156 android 接收系统启动完毕的broadcast的权限<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />//157 android 多媒体录制MediaRecorder recorder = new MediaRecorder();recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); //视频recorder.setAudioSource(MediaRecorder.AudioSource.MIC); //音频recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); recorder.setOutputFile("/sdcard/media/1.3gp");try {recorder.prepare();} catch (IllegalStateException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}recorder.start();//158 android 视频播放VideoView videoView = new VideoView(this); setContentView(videoView); videoView.setVideoURI(Uri.parse("/sdcard/1.3gp")); videoView.requestFocus(); videoView.start();//159 android 绘制文字canvas.drawText(str, 30, 30, paint); //160 android 判断QWERTY键盘硬件是否滑出Configuration config = getResources().getConfiguration();if(config.hardKeyboardHidden == Configuration.KEYBOARDHIDDEN_NO){}else if(config.hardKeyboardHidden == Configuration.KEYBOARDHIDDEN_YES){}//161 android 清除手机cookieCookieSyncManager.createInstance(getApplicationContext());CookieManager.getInstance().removeAllCookie();//162 android 读写文件//读：public String ReadSettings(Context context){ FileInputStream fIn = null; InputStreamReader isr = null; char[] inputBuffer = new char[255]; String data = null; try{ fIn = openFileInput("settings.dat"); isr = new InputStreamReader(fIn); isr.read(inputBuffer); data = new String(inputBuffer); Toast.makeText(context, "Settings read",Toast.LENGTH_SHORT).show(); } catch (Exception e) { e.printStackTrace(); Toast.makeText(context, "Settings not read",Toast.LENGTH_SHORT).show(); } finally { try { isr.close(); fIn.close(); } catch (IOException e) { e.printStackTrace(); } } return data; } //写：public void WriteSettings(Context context, String data){ FileOutputStream fOut = null; OutputStreamWriter osw = null; try{ fOut = openFileOutput("settings.dat",MODE_PRIVATE); osw = new OutputStreamWriter(fOut); osw.write(data); osw.flush(); Toast.makeText(context, "Settings saved",Toast.LENGTH_SHORT).show(); } catch (Exception e) { e.printStackTrace(); Toast.makeText(context, "Settings not saved",Toast.LENGTH_SHORT).show(); } finally { try { osw.close(); fOut.close(); } catch (IOException e) { e.printStackTrace(); } } }//163 android 判断不可卸载的程序PackageManager mPm = getPackageManager();List<ApplicationInfo> installedAppList = mPm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);for (ApplicationInfo appInfo :installedAppList) {boolean flag = false;if ((appInfo.flags &ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0){ // Updated system app flag = true;} else if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0) {// Non-system appflag = true;}if (flag) {appList.add(appInfo);} }//164 android 判断是否飞行模式boolean isEnabled = Settings.System.getInt(context.getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) == 1;
