android开发分享Android通话记录备份实现代码

uri queryuri = uri.parse(“content://call_log/calls”);
cursor queryedcursor = mcontext.getcontentresolver().query(queryuri,
null,
null,
null,
null);
if (queryedcursor == null || queryedcursor.getcount() == 0){
return -1;
}

object[] message = new object[1];
message[0] = queryedcursor.getcount();
publishprogress(message);

stringbuilder sb = new stringbuilder();
outputstream outputstream = null;
writer writer = null;
try {
outputstream = new fileoutputstream(path);
writer = new bufferedwriter(new outputstreamwriter(outputstream));

for (queryedcursor.movetofirst(); !queryedcursor.isafterlast();
queryedcursor.movetonext()) {
if (mcancel){
break;
}
sb.setlength(0);
sb.append(“begin:vcall”).append(“n”);
int subid = queryedcursor.getint(queryedcursor.getcolumnindex(“sub_id”));
int calltype = queryedcursor.getint(
queryedcursor.getcolumnindex(“type”)); //incall/outcall/missed call
long date = queryedcursor.getlong(queryedcursor.getcolumnindex(“date”));
string gmtdata = getgtmdatetimestring(date);
string number = queryedcursor.getstring(queryedcursor.getcolumnindex(“formatted_number”));
string duration = queryedcursor.getstring(queryedcursor.getcolumnindex(“duration”));

sb.append(“slot:”).append(subid).append(“n”);
sb.append(“type:”).append(calltype).append(“n”);
sb.append(“date:”).append(gmtdata).append(“n”);
sb.append(“number:”).append(number).append(“n”);
sb.append(“duration:”).append(duration).append(“n”);
sb.append(“end:vcall”).append(“n”);
writer.write(sb.tostring()); //写入一条记录到文件中
message[0] = -1;
publishprogress(message); //发布消息，让主线程更新进度条
}

} catch (exception e) {
log.d(tag, “”, e);
return 0;
}finally{
try {
if (writer != null){
writer.close();
}
if (outputstream != null){
outputstream.close();
}
} catch (exception e2) {
log.d(tag, “”, e2);
return 0;
}
}
return 1;
}

// to avoid recursive link.
private set<string> mcheckedpaths;

private class canceledexception extends exception {
}

public vclscanthread(file sdcarddirectory, string scantype) {
mcanceled = false;
mgotioexception = false;
mrootdirectory = sdcarddirectory;
mcheckedpaths = new hashset<string>();
mprogressdialogforscanvcard = new progressdialog(main.this);
mprogressdialogforscanvcard.settitle(r.string.dialog_scan_calllist_progress_title);
mprogressdialogforscanvcard.show(); //弹出搜索进度条
}

@override
public void run() {
if (mallvclfilelist == null){
mallvclfilelist = new vector<vclfile>(); //开始搜索，首先清空list，这个list用来保存找到的.vcl文件(包括文件名，文件路径，等等)
}else{
mallvclfilelist.clear();
}

try {
getvcardfilerecursively(mrootdirectory); //迭代搜索sd卡中所有的.vcl文件
} catch (canceledexception e) {
mcanceled = true;
} catch (ioexception e) {
mgotioexception = true;
}

if (mcanceled) {
mallvclfilelist = null;
}

mprogressdialogforscanvcard.dismiss();
mprogressdialogforscanvcard = null;

if (mgotioexception) {
// runonuithread(new dialogdisplayer(r.id.dialog_io_exception));
} else if (mcanceled) {
// finish();
} else {
int size = mallvclfilelist.size();
if (size == 0) {
toast.maketext(main.this, r.string.error_scan_vcl_not_found,
toast.length_short).show();
} else {
runonuithread(new runnable() {
@override
public void run() {
startvcardselectandimport(); //搜索完毕，弹出对话框让用户选择导入那些文件
}
});

}
}
}

private void getvcardfilerecursively(file directory)
throws canceledexception, ioexception {
if (mcanceled) {
throw new canceledexception();
}

// e.g. secured directory may return null toward listfiles().
final file[] files = directory.listfiles();
if (files == null) {
final string currentdirectorypath = directory.getcanonicalpath();
final string securedirectorypath =
mrootdirectory.getcanonicalpath().concat(secure_directory_name);
if (!textutils.equals(currentdirectorypath, securedirectorypath)) {
log.w(log_tag, “listfiles() returned null (directory: ” + directory + “)”);
}
return;
}
for (file file : directory.listfiles()) {
if (mcanceled) {
throw new canceledexception();
}
string canonicalpath = file.getcanonicalpath();
if (mcheckedpaths.contains(canonicalpath)) {
continue;
}

mcheckedpaths.add(canonicalpath);

string endfix = “.vcl”;
if (file.isdirectory()) {
getvcardfilerecursively(file); //如果是目录，就继续迭代搜索
} else if (canonicalpath.tolowercase().endswith(endfix) && //如果是文件，就判断文件名是否以.vcl结尾，如果是，而且可读，则放入搜索的list里面。
file.canread()){
string filename = file.getname();
vclfile vclfile = new vclfile(
filename, canonicalpath, file.lastmodified());
mallvclfilelist.add(vclfile);

}
}
}

public void oncancel(dialoginterface dialog) {
mcanceled = true;
}

public void onclick(dialoginterface dialog, int which) {
if (which == dialoginterface.button_negative) {
mcanceled = true;
}
}
}

//提交一次通话记录信息到数据库
uri uri = uri.parse(“content://call_log”);
mcontext.getcontentresolver().insert(uri, mvalues);