小知识：android

android EditText 的输入监听

EditText keyEdit = (EditText) GetSubView(R.id.searchkey);keyEdit.addTextChangedListener(watcher);

private TextWatcher watcher = new TextWatcher(){public void beforeTextChanged(CharSequence s, int start, int count,int after) {}public void onTextChanged(CharSequence s, int start, int before,int count) {Log.d("TAG","[TextWatcher][onTextChanged]"+s);}public void afterTextChanged(Editable s) {}    };

打电话

Uri uri = Uri.parse("tel:" + "15950521838");Intent intent = new Intent(Intent.ACTION_CALL, uri);intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);startActivity(intent);

判断当前的场景或服务

public boolean getCurrentSence(Context mContext) {boolean sence = false;try {ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);ComponentName cn = am.getRunningTasks(1).get(0).topActivity;if ("com.pateo.music.app.NetMusicPlayer".indexOf(cn.getClassName()) >= 0) {sence = true;}} catch (Exception e) {Log.d(TAG, "" + e);}return sence;}private boolean isStartService(Context ctx,String igrsClassName) {Log.d(TAG, "isStartService : igrsClassName " + igrsClassName  );ActivityManager mActivityManager = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE);List<ActivityManager.RunningServiceInfo> currentService = mActivityManager.getRunningServices(100);boolean b = igrsBaseServiceIsStart(currentService, igrsClassName);return b;}private boolean igrsBaseServiceIsStart(List<ActivityManager.RunningServiceInfo> mServiceList,String className) {Log.d(TAG, "igrsBaseServiceIsStart :  className " + className  );String serviceClassName;for (int i = 0; i < mServiceList.size(); i++) { serviceClassName = mServiceList.get(i).service.getClassName(); Log.d(TAG, "serviceClassName : " + serviceClassName);if (className.equals(serviceClassName)) {return true;}}return false;}

数据变动监听

  getContentResolver().registerContentObserver(Contacts.People.CONTENT_URI, true,                new ContentObserver(new Handler()) {                    public void onChange(boolean selfChange) {                        Log.d(TAG,"========= Received Contacts Changes Notification========");                        addContactsToGrammer();                        super.onChange(selfChange);                    }                });

应用下的xml文件的全局保存

String times = getSharedPreferences("voice_first",PreferenceActivity.MODE_WORLD_WRITEABLE | PreferenceActivity.MODE_WORLD_READABLE).getString("times", "0");getSharedPreferences("voice_first",PreferenceActivity.MODE_WORLD_READABLE).edit().putString("times", "1").commit();

判断是否通话中

private boolean phoneIsInUse() {boolean phoneInUse = false;try {ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));if (phone != null){phoneInUse = !phone.isIdle();}} catch (RemoteException e) {Log.w(TAG, "", e);}Log.d(TAG,"phoneIsInUse() phoneInUse ======" + phoneInUse);return phoneInUse;}

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