UIWebView 相应本地事件

-(BOOL)webView:(UIWebView*)webViewshouldStartLoadWithRequest:(NSURLRequest*)requestnavigationType:(UIWebViewNavigationType)navigationType{
    AppDelegate*appDelegate=(  AppDelegate*)[[UIApplicationsharedApplication]delegate];
if(navigationType==UIWebViewNavigationTypeLinkClicked){
NSURL*URL=[requestURL];
NSLog([URLscheme]);
NSLog([URLabsoluteString]);

//codehereandcallthedelegatemethod


NSAutoreleasePool*pool=[[NSAutoreleasePoolalloc]init];
BOOLaudioResult=FALSE;
NSFileManager*fileManager=[NSFileManagerdefaultManager];
//checkiffileexistedincachefolder
NSArray*cache=NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES);
NSString*cachePath=[cacheobjectAtIndex:0];
NSString*filepath;

filepath=[cachePathstringByAppendingPathComponent:[audioIdstringByAppendingString:@".wav"]];

if([fileManagerfileExistsAtPath:filepath]==YES){
[selfplayVoice:filepath];
}
else
{
audioResult=[appDelegatesaveAudio:audioId];
if(audioResult==YES)
{
//NSLog(@"Speaktheaudiobythepath=%@",filepath);
[selfplayVoice:filepath];
}
}
[poolrelease];



[appDelegatesaveAudio:gotFM];

}

保存声音的方法：

-(BOOL)saveAudio:(NSString*)key
{
NSLog(key);
BOOLsaveSuccess=FALSE;
NSString*dbPath=[[[NSBundlemainBundle]resourcePath]stringByAppendingPathComponent:@"testVoice.db"];

if(sqlite3_open([dbPathUTF8String],&database_voice)==SQLITE_OK)
{

NSString*sqlString=[NSStringstringWithFormat:@"select*fromtb_voicewhereid='%@'",key];
NSLog(sqlString);
constchar*sql_char=[sqlStringUTF8String];
//preparetheselectstatement
intreturnValue=sqlite3_prepare_v2(database_voice,sql_char,-1,&selectStatement,NULL);
if(returnValue==SQLITE_OK)
{
//loopalltherowsreturnedbythequery.
if(sqlite3_step(selectStatement)==SQLITE_ROW)
{

NSFileManager*fileManager=[NSFileManagerdefaultManager];
NSArray*cache=NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES);
NSString*cachePath=[cacheobjectAtIndex:0];


NSString*filename=[NSStringstringWithUTF8String:(char*)sqlite3_column_text(selectStatement,0)];
////NSLog(filename);

NSData*fileData=[NSDatadataWithBytes:sqlite3_column_blob(selectStatement,2)length:sqlite3_column_bytes(selectStatement,2)];
//savethefiledata

//check
NSString*filepath=[cachePathstringByAppendingPathComponent:filename];

filepath=[filepathstringByAppendingString:@".wav"];
if([fileManagercreateDirectoryAtPath:cachePathattributes:nil]==NO){
////NSLog(@"fileManagercreateDirectoryAtPath:cachePathattributes:nil");
}

if([fileDatawriteToFile:filepathatomically:YES]){
saveSuccess=TRUE;
//NSLog(@"saveSuccess");
////NSLog(@"returnValue");
}
else
{
//NSLog(@"saveFail");
}
}
sqlite3_finalize(selectStatement);
}
}
returnsaveSuccess;
}