如何写一个发微博的页面(包括插入图片，插入表情，插入话题，插入Location) (二)

如果写插入location:

final class LocationHelper {private LocationListener mLocationListener;private WriteBlog activity;private LocationManager mLocationManager;// 默认延迟。单位：秒private int timeout;private Handler uiHandler;private boolean isLocated;private LocationHolder holder;private boolean startFetching;private String defaultDraftPath;LocationHelper(WriteBlog activity) {this.activity = activity;mLocationManager = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);uiHandler = new Handler();timeout = 60;defaultDraftPath = activity.getFilesDir().getAbsolutePath()+ "/draft/location.dat";}void dispose() {closeAll();isLocated = false;startFetching = false;holder = null;}void openAllProviders() {if (startFetching || isLocated) { return; }requestProviders();}boolean isFetching() {return startFetching;}boolean isLocatedSucess() {return (holder != null) && holder.isUseful();}void closeAll() {if (mLocationListener != null) {mLocationManager.removeUpdates(getLocationListener());mLocationListener = null;}}private LocationListener getLocationListener() {if (mLocationListener == null) {mLocationListener = new LocationListener() {public void onLocationChanged(Location location) {final LocationHolder holder = new LocationHolder();holder.lat = location.getLatitude();holder.lon = location.getLongitude();System.out.println("====holder.lat="+holder.lat+"lon="+holder.lon);if (holder.isUseful()) {isLocated = true;LocationHelper.this.holder = holder;activity.onLocatedSuccess();closeAll();startFetching = false;}}public void onProviderDisabled(String provider) {}public void onProviderEnabled(String provider) {}public void onStatusChanged(String provider, int status,Bundle extras) {}};}return mLocationListener;}private void requestProviders() {final List<String> providers = mLocationManager.getProviders(true);boolean requestSuccess = false;if (providers.contains(LocationManager.GPS_PROVIDER)) {mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,getLocationListener());requestSuccess = true;}if (providers.contains(LocationManager.NETWORK_PROVIDER)) {mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0,getLocationListener());requestSuccess = true;}if (requestSuccess) {activity.pgLoadingLocation.setVisibility(View.VISIBLE);startFetching = true;if (timeout > 0) {uiHandler.postDelayed(new Runnable() {public void run() {if (!isLocated && (activity != null)&& !activity.isFinishing()) {closeAll();activity.onLocatedError();startFetching = false;}}}, timeout * 1000);}}}}final class LocationHolder implements Serializable {private static final long serialVersionUID = -8205421689204807445L;double lat;double lon;public boolean equals(Object o) {if (o == null) { return false; }if (o == this) { return true; }if (o.getClass() == getClass()) {final LocationHolder holder = (LocationHolder) o;if ((Math.abs(holder.lat - lat) < .001)&& (Math.abs(holder.lon - lon) < .001)) { return true; }}return false;}public int hashCode() {final StringBuffer builder = new StringBuffer();builder.append(lat).append(lon);return builder.hashCode();}boolean isUseful() {return islegal(lat) && islegal(lon);}private boolean islegal(double pos) {if ((pos > 1.) || (pos < -1.)) { return true; }return false;}}

如何插入表情可以参见:http://blog.csdn.net/baidu_nod/article/details/38310729

然后这里来关注点击事件

final class FaceClickHealper {private boolean isFaceDiaplay = false;private WriteBlog activity;boolean isFaceDiaplay() {return isFaceDiaplay;}<strong>void onClick(View v) {activity.setEmotionViewVisibility(!isFaceDiaplay);if (isFaceDiaplay) {activity.displayFaceImageSrc();}else {activity.displayKeyboardImageSrc();}activity.setInputMethodVisibility(isFaceDiaplay);changeDiaplayFlag();}//这个是点击事件</strong>boolean onFinish() {if (isFaceDiaplay) {activity.displayFaceImageSrc();activity.setEmotionViewVisibility(false);changeDiaplayFlag();return true;}return false;}private void changeDiaplayFlag() {isFaceDiaplay = !isFaceDiaplay;}public FaceClickHealper(WriteBlog activity) {super();this.activity = activity;}}

void displayFaceImageSrc() {if (ibFace != null) {ibFace.setImageResource(R.drawable.btn_insert_face);}}void displayKeyboardImageSrc() {if (ibFace != null) {ibFace.setImageResource(R.drawable.btn_insert_keyboard);}}boolean setInputMethodVisibility(boolean visibility) {if ((mInputMethodManager != null) && (etMblog != null)) {if (visibility) {mInputMethodManager.showSoftInput(etMblog, 0);}else {if (mInputMethodManager.isActive(etMblog)) {mInputMethodManager.hideSoftInputFromWindow(etMblog.getWindowToken(),InputMethodManager.HIDE_NOT_ALWAYS);}}}return false;}<pre name="code" class="java"><span style="white-space:pre"></span>void setEmotionViewVisibility(boolean visibility) {if (mEmotionView != null) {mEmotionView.setVisibility(visibility ? View.VISIBLE : View.GONE);}}